Janet Warner, MD
NPI 1609929421 · Psychiatry Physician · Rochester, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Warner, MD is a Psychiatry Physician provider in Rochester, MI (NPI 1609929421).
Provider details
- NPI number
- 1609929421
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301061844 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
45 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 45 | $13 |
Typical Medicare-allowed amounts for these services range $13–$13 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2009-07-07
Frequently asked questions
- What is Janet Warner's NPI number?
- Janet Warner's National Provider Identifier (NPI) is 1609929421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Warner's specialty?
- Janet Warner is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Janet Warner located?
- Janet Warner's practice location on file with NPPES is 1101 W. University Dr, Rochester, MI 48307-1831.
- What is Janet Warner's phone number?
- The practice phone number listed in the NPPES registry for Janet Warner is (248) 652-5291.
- Does Janet Warner accept Medicare?
- Janet Warner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Warner's NPI active?
- Yes — Janet Warner's NPI (1609929421) is active in the NPPES registry as of the last update on 2009-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.