Natalya Greyz-Yusupov, MD
NPI 1174673982 · Internal Medicine Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalya Greyz-Yusupov, MD is a Internal Medicine Physician provider in San Rafael, CA (NPI 1174673982).
Provider details
- NPI number
- 1174673982
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A79520 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 71 | 22 |
| Anastrozole | 70 | 34 |
| Lenalidomide | 66 | — |
| Prednisone | 61 | 25 |
| Dexamethasone | 44 | 23 |
| Palbociclibbrand: Ibrance | 43 | — |
| Ibrutinibbrand: Imbruvica | 41 | — |
| Hydroxyurea | 39 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2021-12-20
Frequently asked questions
- What is Natalya Greyz-Yusupov's NPI number?
- Natalya Greyz-Yusupov's National Provider Identifier (NPI) is 1174673982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalya Greyz-Yusupov's specialty?
- Natalya Greyz-Yusupov is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Natalya Greyz-Yusupov located?
- Natalya Greyz-Yusupov's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.
- What is Natalya Greyz-Yusupov's phone number?
- The practice phone number listed in the NPPES registry for Natalya Greyz-Yusupov is (415) 444-2000.
- Does Natalya Greyz-Yusupov accept Medicare?
- Natalya Greyz-Yusupov is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalya Greyz-Yusupov's NPI active?
- Yes — Natalya Greyz-Yusupov's NPI (1174673982) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.