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Charles Calza, M.D.
NPI 1629081161 · Family Medicine Physician · San Rafael, CA
Charles Calza, M.D. is a Family Medicine Physician provider in San Rafael, CA (NPI 1629081161).
Provider details
- NPI number
- 1629081161
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C-28813 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
4174 Redwood Hwy
San Rafael, CA 94903-2618
Phone: (415) 461-9585
Fax: (415) 454-9872
Street-level locationGet directions
Mailing address
4174 Redwood Hwy
San Rafael, CA 94903-2618
Registry dates
- Enumerated
- 2006-08-14
- Last updated
- 2023-03-07
Frequently asked questions
- What is Charles Calza's NPI number?
- Charles Calza's National Provider Identifier (NPI) is 1629081161, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Calza's specialty?
- Charles Calza is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Calza located?
- Charles Calza's practice location on file with NPPES is 4174 Redwood Hwy, San Rafael, CA 94903-2618.
- What is Charles Calza's phone number?
- The practice phone number listed in the NPPES registry for Charles Calza is (415) 461-9585.
- Is Charles Calza's NPI active?
- Yes — Charles Calza's NPI (1629081161) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.