Psychiatrists (MD or DO with psychiatric specialty) enroll in Medicare the same way as any physician — via CMS-855I — but have access to a broader set of billing codes than other mental health providers because they are physicians. Psychiatrists can bill both psychiatric service codes and standard evaluation and management (E&M) codes.
Enrollment requirements
- Medical degree (MD or DO) with completed psychiatry residency
- Board certification or eligibility in psychiatry (ABPN or AOBNP)
- State medical license
- Active DEA registration if prescribing
- Type 1 NPI (individual)
- Enrollment via CMS-855I or PECOS
Billing structure
Psychiatric services:
- Psychiatric diagnostic evaluation (90791 — without medical services, 90792 — with medical services)
- Individual psychotherapy (90832, 90834, 90837)
- Psychotherapy for crisis (90839, 90840)
- Group psychotherapy (90853)
Evaluation and management (medication management): Psychiatrists can bill standard E&M codes (99202-99215) for medication management visits. This is the most common billing model for psychiatrists in outpatient practice — the “med check” visit that doesn’t include psychotherapy.
Combined E&M + psychotherapy (add-on codes): When a psychiatrist provides both medication management and psychotherapy in the same visit, they can bill a combined code:
- 90833 — psychotherapy add-on, 16-37 minutes, with E&M
- 90836 — psychotherapy add-on, 38-52 minutes, with E&M
- 90838 — psychotherapy add-on, 53+ minutes, with E&M
This combined billing is unique to physician psychiatrists — it’s not available to non-physician mental health providers.
Telehealth
Psychiatry was among the first specialties to have permanent Medicare telehealth expansion following the COVID-19 public health emergency waiver period. Telepsychiatry is covered under Part B with the same codes as in-person services.
⚠️ Risk flag: Telehealth prescribing of controlled substances (particularly Schedule II stimulants and buprenorphine) remains subject to DEA telemedicine rules that were extended but not permanently resolved post-PHE. Verify current DEA guidance before prescribing controlled substances via telehealth.
Key applications
- CMS-855I — individual physician enrollment
- CMS-855R — reassignment to group
Ask Mae if you have questions about psychiatric billing codes, combined E&M and therapy billing, or telehealth prescribing rules.