John Weeks, M.D.
NPI 1962473074 · Family Medicine Physician · Clearlake, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Weeks, M.D. is a Family Medicine Physician provider in Clearlake, CA (NPI 1962473074).
Provider details
- NPI number
- 1962473074
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G38230 (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
20 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 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 360 | 66 |
| Levothyroxine Sodium | 246 | 41 |
| Losartan Potassium | 227 | 40 |
| Amlodipine Besylate | 188 | 36 |
| Metoprolol Succinate | 174 | 32 |
| Metformin Hcl | 169 | 28 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-27
- Last updated
- 2015-03-18
Frequently asked questions
- What is John Weeks's NPI number?
- John Weeks's National Provider Identifier (NPI) is 1962473074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Weeks's specialty?
- John Weeks is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Weeks located?
- John Weeks's practice location on file with NPPES is 15230 Lakeshore Dr, Clearlake, CA 95422-8107.
- What is John Weeks's phone number?
- The practice phone number listed in the NPPES registry for John Weeks is (707) 994-7377.
- Does John Weeks accept Medicare?
- John Weeks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Weeks's NPI active?
- Yes — John Weeks's NPI (1962473074) is active in the NPPES registry as of the last update on 2015-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.