IndividualActive
James Drennan, M.D.
NPI 1275518177 · Internal Medicine Physician · Auburn, CA
James Drennan, M.D. is a Internal Medicine Physician provider in Auburn, CA (NPI 1275518177).
Provider details
- NPI number
- 1275518177
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G51403 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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.
Practice location
240 Hammond Dr
Auburn, CA 95603-3208
Phone: (530) 885-8223
Street-level locationGet directions
Mailing address
10470 Old Placerville Rd
Sacramento, CA 95827-2539
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2015-07-22
Frequently asked questions
- What is James Drennan's NPI number?
- James Drennan's National Provider Identifier (NPI) is 1275518177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Drennan's specialty?
- James Drennan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Drennan located?
- James Drennan's practice location on file with NPPES is 240 Hammond Dr, Auburn, CA 95603-3208.
- What is James Drennan's phone number?
- The practice phone number listed in the NPPES registry for James Drennan is (530) 885-8223.
- Is James Drennan's NPI active?
- Yes — James Drennan's NPI (1275518177) is active in the NPPES registry as of the last update on 2015-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.