Yes: a nurse practitioner, physician assistant or physician can open a cash-pay telemedicine hormone practice in Illinois, and for experienced NPs it is one of the better states to do it in. The gating items are a written collaborative agreement for NPs and PAs unless the NP qualifies for full practice authority (4,000 clinical hours plus 250 continuing-education hours after national certification), a strict corporate-practice-of-medicine rule on who may own the clinical entity, a full Illinois license for anyone treating Illinois patients under the Telehealth Act, and a separate Illinois controlled substance license on top of the DEA number before anyone prescribes testosterone. This is a 2026 planning summary, not legal advice; confirm every point with the Illinois Department of Financial and Professional Regulation (IDFPR) and Illinois counsel, because rules change and the Nurse Practice Act is up for re-enactment in 2028.
Illinois practice authority: who can run and own a telemedicine hormone practice
Nurse practitioners in Illinois
Illinois is usually described as a reduced practice state with a path to independence. A newly licensed APRN practises under a written collaborative agreement with a physician (225 ILCS 65/65-35). The agreement describes the working relationship and categories of care, does not require employment or an on-site physician, and may not restrict the NP’s geography or patient categories absent employment. Prescribing is delegated under 65-40: Schedule III through V, which covers testosterone, may be delegated outright; Schedule II only with extra conditions such as a 30-day supply and no injectables; and the NP discusses any patient on a controlled substance with the collaborating physician at least monthly. Before IDFPR issues the NP’s mid-level controlled substance license, the collaborating physician files a Notice of Delegated Prescriptive Authority for Controlled Substances.
The upgrade is full practice authority under 225 ILCS 65/65-43. A nurse practitioner who files a notarized attestation of at least 4,000 hours of clinical experience and at least 250 hours of continuing education or training, both completed after first attaining national certification and in the certification area, may practise without a written collaborative agreement. An FPA APRN may prescribe legend drugs and Schedule II through V controlled substances and obtain an Illinois controlled substance license and a DEA number. Two limits remain: Schedule II narcotics such as opioids only inside a consultation relationship with a physician recorded on the Prescription Monitoring Program site, and benzodiazepines beyond a 120-day supply only with a physician consultation. Neither touches Schedule III testosterone, so an FPA nurse practitioner can run a hormone practice without a collaborator, as the statute is commonly read; confirm the hour-documentation rules with IDFPR before relying on this.
Physician assistants in Illinois
PAs practise under a written collaborative agreement under the Physician Assistant Practice Act (225 ILCS 95/7.5). The agreement describes the working relationship and categories of care, specifies which procedures need the physician present, and requires at least monthly consultation. The physician may, but need not, delegate prescriptive authority; to delegate controlled substances the physician must hold a current Illinois controlled substance license and federal registration, and the PA must obtain a mid-level practitioner controlled substance license. Schedule III through V is delegable in the ordinary course; Schedule II carries a 30-day limit and no injectables. Older versions of the Act capped a physician at seven full-time-equivalent PAs and some guides still cite a ratio; the current text, as commonly read, relies on adequate collaboration rather than a numeric cap, so confirm with IDFPR. Bills to drop the PA collaborative agreement were filed in the 2025–2026 session and had not become law as of this writing.
Physicians and the corporate practice of medicine
Illinois enforces the corporate practice of medicine doctrine strictly: a general business corporation and most non-physicians may not employ physicians to practise medicine or own the entity that does. A physician starting a cash-pay hormone clinic typically forms a medical corporation under the Medical Corporation Act (805 ILCS 15), where every officer, director and shareholder must be a Medical Practice Act licensee, a professional service corporation, or a professional limited liability company. Each must also register with IDFPR, separately from the Secretary of State filing and for each location, before rendering services. Non-physician partners and investors sit in a management services organization (MSO) under a fair-market-value agreement. Illinois adds a wrinkle: the Medical Practice Act’s fee-splitting section (225 ILCS 60/22.2) restricts percentage-of-revenue arrangements with non-physicians, so MSO fees need careful drafting by Illinois health-care counsel.
So who may own the practice?
A physician may own the clinical entity outright. A PA generally may not: PAs are not Medical Practice Act licensees, and the Professional Service Corporation Act’s related-professions list groups medicine with podiatry, dentistry and optometry, not with PAs or APRNs, so the common PA model is a physician-owned clinical entity plus a PA-owned MSO. A nurse practitioner has a cleaner path than in many states: nursing is a licensed profession eligible for its own PLLC or professional service corporation, so an NP-owned entity providing APRN services, under full practice authority or with a contracted collaborating physician, is widely used. Set the structure in writing with counsel before filing.
Illinois telehealth rules for a remote hormone practice
Licensure and patient location. The Telehealth Act (225 ILCS 150/10) is short: a health care professional treating a patient located in Illinois through telehealth must be licensed or authorized to practise in Illinois. There is no telehealth registration for out-of-state practitioners. The Medical Practice Act’s telemedicine section (225 ILCS 60/49.5) carves out periodic consultations with an Illinois-licensed physician, second opinions, follow-up of care begun in the physician’s home state, and care for an existing patient while either party is travelling; none covers an ongoing hormone relationship. Illinois is a member of the Interstate Medical Licensure Compact, which shortens the path for physicians licensed elsewhere. It is not in the Nurse Licensure Compact, and PA Licensure Compact bills had not passed as of this writing, so NPs and PAs apply to IDFPR directly.
Standard of care and the first visit. Section 15 of the Telehealth Act lets any licensed professional deliver telehealth within the scope of the relevant practice act, consistent with the standard of care for in-person services and with federal and state privacy law. Neither the Telehealth Act nor the Medical Practice Act requires an in-person examination before treatment or prescribing; the standard of care decides what a video visit must include. Illinois has no stand-alone telehealth informed-consent statute as commonly read, but documenting consent, patient location and identity at each visit is expected practice. The state’s telehealth payment-parity law governs insurers and does not affect a cash-pay practice.
Controlled substances and registrations. Testosterone is Schedule III, so each prescriber needs two credentials: a federal DEA registration tied to an Illinois address, and an Illinois controlled substance license from IDFPR under the Illinois Controlled Substances Act (720 ILCS 570/302 and 303.05), issued as a physician license for MDs and DOs and a mid-level practitioner license for APRNs and PAs. Federal telemedicine rules for controlled substances have been extended and revised repeatedly, so confirm the current federal position on in-person evaluation first. Every Illinois controlled substance licensee must enrol in the Illinois Prescription Monitoring Program; a documented PMP check is required before prescribing Schedule II opioids, Schedule IV benzodiazepines and initial Schedule II stimulants under 2026 amendments, as reported. Testosterone is not on that list as commonly read, but checking the PMP for every controlled prescription is sound practice. Illinois also requires electronic prescribing of Schedule II through V, with a low-volume opt-out, so an EHR with certified EPCS is a baseline.
See the full 12-week program →
Entity options, registered agent and Illinois taxes
Illinois clinicians choose between a medical corporation (physicians only), a professional service corporation and a professional limited liability company; all three are filed with the Illinois Secretary of State and then registered with IDFPR per location on a multi-year renewal cycle. An NP-owned practice generally files a PLLC or professional service corporation for nursing services; an MSO is an ordinary LLC. Every Illinois entity needs a registered agent with a physical Illinois street address. Typical filing figures to confirm: LLC articles around $150 and a $75 annual report; corporations remain subject to the Illinois franchise tax, from which LLCs are exempt.
Illinois has a flat personal income tax of 4.95 percent, and pass-through entities also pay the personal property replacement tax: 1.5 percent of net Illinois income for partnerships and S corporations, 2.5 percent for C corporations on top of the 7 percent corporate income tax. Chicago has no city income tax, though it levies a lease transaction tax on cloud software that can touch a telemedicine stack, and there is no sales tax on medical services. Treat these as typical figures to confirm with an Illinois CPA.
Labs and pharmacy in Illinois
Illinois is a quirk state for laboratory testing. The Illinois Department of Public Health’s position is that direct access testing, where a patient orders a test with no clinician order, is not allowed; specimen collection must be backed by a request from a physician or another person authorized by law to order tests. For a cash-pay hormone clinic this cuts two ways: the clinic orders every panel under its own lab account, which is the normal model anyway, and the practice should not lean on consumer-ordered test kits as an intake shortcut. The national laboratories run draw sites across Chicagoland, the collar counties and downstate, and results flow back into the EHR. Confirm current IDPH guidance and each laboratory’s Illinois policy.
On the pharmacy side, any pharmacy outside Illinois that ships prescriptions to Illinois patients must hold an IDFPR nonresident pharmacy license and follow Illinois pharmacy rules, including USP 795 and 797 compounding standards. A 2026 rule change requires the pharmacist-in-charge of a nonresident pharmacy to hold an Illinois pharmacist license, with a compliance variance that ran to March 30, 2026, as reported. Ask any compounding pharmacy for its Illinois nonresident license number and whether its pharmacist-in-charge is Illinois-licensed before routing the first testosterone prescription, and keep an Illinois-based 503A compounder as a backup.
Illinois at a glance
| Item | Illinois (confirm with IDFPR or counsel) |
|---|---|
| NP practice authority | Reduced; written collaborative agreement, then full practice authority after 4,000 clinical hours + 250 CE hours; FPA APRN prescribes II–V, Schedule II opioids need a physician consultation relationship |
| PA model | Written collaborative agreement with monthly consultation; prescriptive authority delegated; mid-level controlled substance license; no numeric ratio in current statute as commonly read |
| Corporate practice of medicine | Strict; physician-owned medical corporation, PSC or PLLC registered with IDFPR; MSO for non-clinical ownership; fee-splitting statute applies |
| Telehealth registration | None; Illinois license required to treat Illinois patients; IMLC member for physicians; not in the Nurse Licensure Compact |
| In-person exam before prescribing | Not required by the Telehealth Act; standard of care governs; federal controlled-substance rules still apply |
| State controlled-substance license | Yes; Illinois controlled substance license (physician or mid-level) from IDFPR in addition to DEA registration |
| PDMP check | Enrolment mandatory for all CSL holders; documented check for Schedule II opioids, Schedule IV benzodiazepines, initial Schedule II stimulants; recommended for all controlled prescriptions |
| Direct-to-consumer labs | Direct access testing not permitted per IDPH; clinician order required; clinic-ordered panels work normally |
| State tax | 4.95% flat personal income tax; 1.5% replacement tax on pass-through net income; no city income tax in Chicago |
The 12-week Clinic In A Box map applied to Illinois
Clinic In A Box™ is a private, 1-on-1, done-with-you 12-week build led by an operator-mentor who runs active telemedicine clinics in the US, Colombia and Australia. The Illinois items land in the weeks shown.
- Weeks 1–4, Foundation. Niche and patient avatar; ownership model (physician-owned medical corporation or PLLC, NP-owned PLLC, or clinical entity plus MSO with fee-splitting review) settled with counsel; entity filed, registered agent named, IDFPR entity registration queued; Illinois license confirmed and any multi-state pathway started; for NPs, the full-practice-authority attestation assembled or a collaborating physician identified and the written collaborative agreement drafted; Illinois controlled substance license and DEA registration applied for; NPI; HIPAA framework, BAAs, and an EHR with certified EPCS and PMP integration.
- Weeks 5–8, Operations. Intake and telehealth consent built to the Telehealth Act and standard-of-care expectations, capturing patient location at every visit; monthly collaborating-physician consultation calendared where an agreement applies; lab account opened and Illinois draw sites mapped with the clinic as orderer; compounding pharmacies vetted for IDFPR nonresident licensure; PMP check and e-prescribing built into the Schedule III workflow; cash-pay service menu, subscription option and payment processing live.
- Weeks 9–12, Launch. Patient acquisition for Chicago, the suburbs and downstate metros (Google Business where eligible, referrals, organic search); soft launch and first patients seen; revenue and retention tracking; a 90-day roadmap including IDFPR renewals, the annual report, replacement-tax estimates and, for NPs under an agreement, the hour log toward full practice authority.
By week 12 the practice has a compliant Illinois entity registered with IDFPR, the right collaboration or full-practice-authority paperwork, state and federal controlled-substance credentials, a configured EHR, lab and pharmacy relationships, a priced service menu and its first patients. Read the telemedicine hormone clinic compliance guide for the national layer under these Illinois rules, and how to start a telemedicine hormone clinic for the full sequence. Illinois NPs can start with the nurse practitioner practice startup program page; physicians should read the physician telemedicine practice launch program page. The investment is $10,000 for two hours a week of direct work plus messaging between sessions; details are on the Clinic In A Box™ program page.
Frequently asked questions
Can a nurse practitioner open a telemedicine hormone clinic in Illinois without a physician?
Yes, once the NP holds full practice authority: a notarized attestation to IDFPR of at least 4,000 clinical hours and 250 continuing-education hours completed after national certification. An FPA nurse practitioner may prescribe Schedule III testosterone without a collaborating physician; only Schedule II opioids and extended benzodiazepine prescribing require a physician consultation relationship. An NP short of those hours needs a written collaborative agreement, which does not require employment or an on-site physician.
Does Illinois require an in-person visit before prescribing testosterone by telemedicine?
The Illinois Telehealth Act does not require an in-person examination; it requires that telehealth meet the same standard of care as in-person care and stay within the professional’s scope of practice. Testosterone is a federally controlled Schedule III drug, so federal telemedicine prescribing rules also apply and have changed several times; confirm the current federal position and IDFPR guidance before prescribing.
Do I need an Illinois controlled substance license in addition to my DEA number?
Yes. Illinois requires a state controlled substance license from IDFPR, issued as a physician license for MDs and DOs and a mid-level practitioner license for APRNs and PAs, in addition to federal DEA registration. For NPs and PAs under a collaborative agreement, the collaborating physician’s notice of delegated controlled-substance authority must be on file first, and every licensee must enrol in the Illinois Prescription Monitoring Program.
Can I treat Illinois patients from another state?
Only with an Illinois license. The Telehealth Act requires anyone treating a patient located in Illinois to be licensed or authorized in Illinois, and the Medical Practice Act’s narrow exceptions (consultation, second opinion, follow-up of care begun elsewhere, travelling patients) do not cover an ongoing hormone relationship. Physicians licensed elsewhere can use the Interstate Medical Licensure Compact; Illinois is not in the Nurse Licensure Compact, so APRNs and PAs apply to IDFPR directly.
Request your free info session
The next step is a free 30-minute info session covering your credential, your Illinois licensing and collaboration situation, your timeline and whether this is the right vehicle. Either way you leave with a clearer picture of what to do next. Call 844-734-2112 or use the form below.