John Campbell, M.D.
NPI 1427329770 · Obstetrics & Gynecology Physician · Claremont, CA
John Campbell, M.D. is a Obstetrics & Gynecology Physician provider in Claremont, CA (NPI 1427329770).
Provider details
- NPI number
- 1427329770
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- GFE5561 (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
14 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-01-18
- Last updated
- 2012-01-18
Frequently asked questions
- What is John Campbell's NPI number?
- John Campbell's National Provider Identifier (NPI) is 1427329770, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Campbell's specialty?
- John Campbell is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Campbell located?
- John Campbell's practice location on file with NPPES is 4205 Piedmont Mesa Rd, Claremont, CA 91711-2353.
- What is John Campbell's phone number?
- The practice phone number listed in the NPPES registry for John Campbell is (909) 596-1353.
- Is John Campbell's NPI active?
- Yes — John Campbell's NPI (1427329770) is active in the NPPES registry as of the last update on 2012-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.