Gregory Rubin, MD
NPI 1275600298 · Internal Medicine Physician · Woodland Hills, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Rubin, MD is a Internal Medicine Physician provider in Woodland Hills, CA (NPI 1275600298).
Provider details
- NPI number
- 1275600298
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A82304 (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 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 408 | 147 |
| Amlodipine Besylate | 278 | 96 |
| Lisinopril | 250 | 99 |
| Rosuvastatin Calcium | 211 | 85 |
| Simvastatin | 209 | 75 |
| Losartan Potassium | 196 | 75 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-29
- Last updated
- 2021-12-02
Frequently asked questions
- What is Gregory Rubin's NPI number?
- Gregory Rubin's National Provider Identifier (NPI) is 1275600298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Rubin's specialty?
- Gregory Rubin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Rubin located?
- Gregory Rubin's practice location on file with NPPES is 5601 De Soto Ave, Woodland Hills, CA 91367-6701.
- What is Gregory Rubin's phone number?
- The practice phone number listed in the NPPES registry for Gregory Rubin is (818) 719-2000.
- Does Gregory Rubin accept Medicare?
- Gregory Rubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Rubin's NPI active?
- Yes — Gregory Rubin's NPI (1275600298) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.