Stephen Martinez, MD
NPI 1386729044 · Dermatology Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Martinez, MD is a Dermatology Physician provider in Fremont, CA (NPI 1386729044).
Provider details
- NPI number
- 1386729044
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A64598 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 51 | 39 |
| Fluorouracil | 48 | 44 |
| Calcipotriene | 39 | 36 |
| Secukinumabbrand: Cosentyx Sensoready (2 Pens) | 33 | — |
| Ketoconazole | 27 | 15 |
| Fluocinonide | 26 | 17 |
| Clobetasol Propionate | 20 | 12 |
| Desonide | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2021-12-13
Frequently asked questions
- What is Stephen Martinez's NPI number?
- Stephen Martinez's National Provider Identifier (NPI) is 1386729044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Martinez's specialty?
- Stephen Martinez is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Martinez located?
- Stephen Martinez's practice location on file with NPPES is 39400 Paseo Padre Pkwy, Fremont, CA 94538-2310.
- What is Stephen Martinez's phone number?
- The practice phone number listed in the NPPES registry for Stephen Martinez is (510) 795-3000.
- Does Stephen Martinez accept Medicare?
- Stephen Martinez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Martinez's NPI active?
- Yes — Stephen Martinez's NPI (1386729044) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.