Prasanna Durairaj, D.O
NPI 1538459540 · Internal Medicine Physician · South San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Prasanna Durairaj, D.O is a Internal Medicine Physician provider in South San Francisco, CA (NPI 1538459540).
Provider details
- NPI number
- 1538459540
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A14210 (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
15 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 · 71 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 279 | 135 |
| Losartan Potassium | 161 | 75 |
| Amlodipine Besylate | 143 | 60 |
| Lisinopril | 137 | 59 |
| Levothyroxine Sodium | 108 | 43 |
| Gabapentin | 106 | 48 |
| Simvastatin | 100 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-11
- Last updated
- 2022-02-11
Frequently asked questions
- What is Prasanna Durairaj's NPI number?
- Prasanna Durairaj's National Provider Identifier (NPI) is 1538459540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Prasanna Durairaj's specialty?
- Prasanna Durairaj is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Prasanna Durairaj located?
- Prasanna Durairaj's practice location on file with NPPES is 1200 El Camino Real, South San Francisco, CA 94080-3208.
- What is Prasanna Durairaj's phone number?
- The practice phone number listed in the NPPES registry for Prasanna Durairaj is (650) 742-2100.
- Does Prasanna Durairaj accept Medicare?
- Prasanna Durairaj is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Prasanna Durairaj's NPI active?
- Yes — Prasanna Durairaj's NPI (1538459540) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.