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James Klein, MD
NPI 1225126998 · Otolaryngology Physician · San Francisco, CA
James Klein, MD is a Otolaryngology Physician provider in San Francisco, CA (NPI 1225126998).
Provider details
- NPI number
- 1225126998
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A22960 (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
2100 Webster St Ste 202
San Francisco, CA 94115-2375
Phone: (415) 923-3135
Fax: (415) 771-2897
Street-level locationGet directions
Mailing address
2100 Webster St 202
San Francisco, CA 94115-2375
Registry dates
- Enumerated
- 2006-10-10
- Last updated
- 2010-12-06
Frequently asked questions
- What is James Klein's NPI number?
- James Klein's National Provider Identifier (NPI) is 1225126998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Klein's specialty?
- James Klein is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is James Klein located?
- James Klein's practice location on file with NPPES is 2100 Webster St Ste 202, San Francisco, CA 94115-2375.
- What is James Klein's phone number?
- The practice phone number listed in the NPPES registry for James Klein is (415) 923-3135.
- Is James Klein's NPI active?
- Yes — James Klein's NPI (1225126998) is active in the NPPES registry as of the last update on 2010-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.