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Douglas Beseth, M.D.
NPI 1336259720 · General Practice Physician · Upland, CA
Douglas Beseth, M.D. is a General Practice Physician provider in Upland, CA (NPI 1336259720).
Provider details
- NPI number
- 1336259720
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C30121 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
999 San Bernardino Rd
Upland, CA 91786-4920
Phone: (909) 908-5086
Street-level locationGet directions
Mailing address
1277 Upland Hills Dr S
Upland, CA 91786-2439
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2013-06-13
Frequently asked questions
- What is Douglas Beseth's NPI number?
- Douglas Beseth's National Provider Identifier (NPI) is 1336259720, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Beseth's specialty?
- Douglas Beseth is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Beseth located?
- Douglas Beseth's practice location on file with NPPES is 999 San Bernardino Rd, Upland, CA 91786-4920.
- What is Douglas Beseth's phone number?
- The practice phone number listed in the NPPES registry for Douglas Beseth is (909) 908-5086.
- Is Douglas Beseth's NPI active?
- Yes — Douglas Beseth's NPI (1336259720) is active in the NPPES registry as of the last update on 2013-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.