John Lennox, DO
NPI 1437169026 · Obstetrics & Gynecology Physician · Orinda, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Lennox, DO is a Obstetrics & Gynecology Physician provider in Orinda, CA (NPI 1437169026).
Provider details
- NPI number
- 1437169026
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A4836 (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
4 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Estradiol | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (3)
- 1411 E 31st StOakcare Medical GroupOakland, CA 94602-1018Phone: (510) 437-4323Fax: (510) 437-5042
- 1411 E 31st StOakcare Medical GroupOakland, CA 94602-1018Phone: (510) 437-4323Fax: (510) 437-5042
- 1450 Treat Blvd # 320Walnut Creek, CA 94597-2168Phone: (925) 296-9880
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2019-11-12
Frequently asked questions
- What is John Lennox's NPI number?
- John Lennox's National Provider Identifier (NPI) is 1437169026, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lennox's specialty?
- John Lennox is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Lennox located?
- John Lennox's practice location on file with NPPES is 3 Altarinda Rd Ste 200, Orinda, CA 94563.
- What is John Lennox's phone number?
- The practice phone number listed in the NPPES registry for John Lennox is (925) 254-9840.
- Does John Lennox accept Medicare?
- John Lennox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Lennox's NPI active?
- Yes — John Lennox's NPI (1437169026) is active in the NPPES registry as of the last update on 2019-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.