IndividualActive
Bertram Katzung
NPI 1558516559 · General Practice Physician · San Rafael, CA
Bertram Katzung is a General Practice Physician provider in San Rafael, CA (NPI 1558516559).
Provider details
- NPI number
- 1558516559
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- G5165 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
65 Knoll Rd
San Rafael, CA 94901-3626
Phone: (415) 456-5812
Fax: (415) 459-0688
Street-level locationGet directions
Mailing address
65 Knoll Rd
San Rafael, CA 94901-3626
Registry dates
- Enumerated
- 2008-11-18
- Last updated
- 2008-11-18
Frequently asked questions
- What is Bertram Katzung's NPI number?
- Bertram Katzung's National Provider Identifier (NPI) is 1558516559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bertram Katzung's specialty?
- Bertram Katzung is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Bertram Katzung located?
- Bertram Katzung's practice location on file with NPPES is 65 Knoll Rd, San Rafael, CA 94901-3626.
- What is Bertram Katzung's phone number?
- The practice phone number listed in the NPPES registry for Bertram Katzung is (415) 456-5812.
- Is Bertram Katzung's NPI active?
- Yes — Bertram Katzung's NPI (1558516559) is active in the NPPES registry as of the last update on 2008-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.