Merin Stephen, M.D.
NPI 1295998235 · Hematology & Oncology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merin Stephen, M.D. is a Hematology & Oncology Physician provider in Sacramento, CA (NPI 1295998235).
Provider details
- NPI number
- 1295998235
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 137065 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 134 | 42 |
| Hydroxyurea | 65 | 14 |
| Tamoxifen Citrate | 58 | 15 |
| Letrozole | 46 | 12 |
| Exemestane | 22 | — |
| Abiraterone Acetate | 17 | — |
| Enzalutamidebrand: Xtandi | 14 | — |
| Ondansetron Hcl | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$182 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-09
- Last updated
- 2021-11-29
Frequently asked questions
- What is Merin Stephen's NPI number?
- Merin Stephen's National Provider Identifier (NPI) is 1295998235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merin Stephen's specialty?
- Merin Stephen is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Merin Stephen located?
- Merin Stephen's practice location on file with NPPES is 2279 45th St, Sacramento, CA 95817-1514.
- What is Merin Stephen's phone number?
- The practice phone number listed in the NPPES registry for Merin Stephen is (916) 734-5959.
- Does Merin Stephen accept Medicare?
- Merin Stephen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Merin Stephen's NPI active?
- Yes — Merin Stephen's NPI (1295998235) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.