Lesley Aiken, MD
NPI 1629156120 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lesley Aiken, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1629156120).
Provider details
- NPI number
- 1629156120
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A84452 (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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 327 | 100 |
| Amlodipine Besylate | 163 | 52 |
| Levothyroxine Sodium | 141 | 39 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 132 | 44 |
| Losartan Potassium | 113 | 36 |
| Hydrochlorothiazide | 103 | 36 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-09
Frequently asked questions
- What is Lesley Aiken's NPI number?
- Lesley Aiken's National Provider Identifier (NPI) is 1629156120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lesley Aiken's specialty?
- Lesley Aiken is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lesley Aiken located?
- Lesley Aiken's practice location on file with NPPES is 2200 Ofarrell St, San Francisco, CA 94115-3357.
- What is Lesley Aiken's phone number?
- The practice phone number listed in the NPPES registry for Lesley Aiken is (415) 833-2000.
- Does Lesley Aiken accept Medicare?
- Lesley Aiken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lesley Aiken's NPI active?
- Yes — Lesley Aiken's NPI (1629156120) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.