Douglas Folsom, MD
NPI 1831260470 · Family Medicine Physician · Antioch, CA
Douglas Folsom, MD is a Family Medicine Physician provider in Antioch, CA (NPI 1831260470).
Provider details
- NPI number
- 1831260470
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 00G209611 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2018-05-07
Frequently asked questions
- What is Douglas Folsom's NPI number?
- Douglas Folsom's National Provider Identifier (NPI) is 1831260470, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Folsom's specialty?
- Douglas Folsom is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Folsom located?
- Douglas Folsom's practice location on file with NPPES is 3934 Rocky Point Dr, Antioch, CA 94509-6902.
- What is Douglas Folsom's phone number?
- The practice phone number listed in the NPPES registry for Douglas Folsom is (925) 978-9643.
- Is Douglas Folsom's NPI active?
- Yes — Douglas Folsom's NPI (1831260470) is active in the NPPES registry as of the last update on 2018-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.