Stephen Warnick, MD
NPI 1235336991 · Family Medicine Physician · Grosse Pointe, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Warnick, MD is a Family Medicine Physician provider in Grosse Pointe, MI (NPI 1235336991).
Provider details
- NPI number
- 1235336991
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301099879 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
14 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $131 |
Typical Medicare-allowed amounts for these services range $131–$131 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 90 | 23 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 40 | 12 |
| Mirtazapine | 37 | — |
| Atorvastatin Calcium | 37 | 15 |
| Duloxetine Hcl | 32 | — |
| Aripiprazole | 29 | 11 |
| Gabapentin |
Practice location
Mailing address
Additional practice locations (3)
- 1460 Coolidge HwyRiver Rouge, MI 48218-1118Phone: (313) 843-1639
- 21400 E 11 Mile RdSaint Clair Shores, MI 48081-1566Phone: (586) 498-4400Fax: (586) 498-4440
- 200 Arnet StSuite 200Ypsilanti, MI 48198-5753Phone: (734) 482-6221
Registry dates
- Enumerated
- 2007-06-27
- Last updated
- 2023-04-10
- Certified
- 2023-04-10
Frequently asked questions
- What is Stephen Warnick's NPI number?
- Stephen Warnick's National Provider Identifier (NPI) is 1235336991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Warnick's specialty?
- Stephen Warnick is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Warnick located?
- Stephen Warnick's practice location on file with NPPES is 16815 E Jefferson Ave Ste 120, Grosse Pointe, MI 48230-1923.
- What is Stephen Warnick's phone number?
- The practice phone number listed in the NPPES registry for Stephen Warnick is (586) 498-4400.
- Does Stephen Warnick accept Medicare?
- Stephen Warnick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Warnick's NPI active?
- Yes — Stephen Warnick's NPI (1235336991) is active in the NPPES registry as of the last update on 2023-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.