Clayton Feldman, M.D.
NPI 1548370521 · Allergy & Immunology (Internal Medicine) Physician · San Jose, CA
Clayton Feldman, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider in San Jose, CA (NPI 1548370521).
Provider details
- NPI number
- 1548370521
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G7115 (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
- 2006-08-30
- Last updated
- 2007-10-10
Frequently asked questions
- What is Clayton Feldman's NPI number?
- Clayton Feldman's National Provider Identifier (NPI) is 1548370521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Feldman's specialty?
- Clayton Feldman is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Clayton Feldman located?
- Clayton Feldman's practice location on file with NPPES is 625 Lincoln Ave, San Jose, CA 95126-3705.
- What is Clayton Feldman's phone number?
- The practice phone number listed in the NPPES registry for Clayton Feldman is (408) 278-3003.
- Is Clayton Feldman's NPI active?
- Yes — Clayton Feldman's NPI (1548370521) is active in the NPPES registry as of the last update on 2007-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.