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John Swartzberg, MD
NPI 1063550515 · Infectious Disease Physician · Berkeley, CA
John Swartzberg, MD is a Infectious Disease Physician provider in Berkeley, CA (NPI 1063550515).
Provider details
- NPI number
- 1063550515
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A24314 (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
570 University Hall
University of California, Berkeley
Berkeley, CA 94720-1191
Phone: (510) 643-0499
Approximate (ZIP-level) locationGet directions
Mailing address
570 University Hall
Berkeley, CA 94720-1191
Registry dates
- Enumerated
- 2007-02-04
- Last updated
- 2007-07-10
Frequently asked questions
- What is John Swartzberg's NPI number?
- John Swartzberg's National Provider Identifier (NPI) is 1063550515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Swartzberg's specialty?
- John Swartzberg is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Swartzberg located?
- John Swartzberg's practice location on file with NPPES is 570 University Hall, Berkeley, CA 94720-1191.
- What is John Swartzberg's phone number?
- The practice phone number listed in the NPPES registry for John Swartzberg is (510) 643-0499.
- Is John Swartzberg's NPI active?
- Yes — John Swartzberg's NPI (1063550515) is active in the NPPES registry as of the last update on 2007-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.