Calvin Hirsch, MD
NPI 1073597332 · Internal Medicine Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Hirsch, MD is a Internal Medicine Physician provider in Sacramento, CA (NPI 1073597332).
Provider details
- NPI number
- 1073597332
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G47136 (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
20 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
- 2005-11-30
- Last updated
- 2023-03-07
Frequently asked questions
- What is Calvin Hirsch's NPI number?
- Calvin Hirsch's National Provider Identifier (NPI) is 1073597332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Hirsch's specialty?
- Calvin Hirsch is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Hirsch located?
- Calvin Hirsch's practice location on file with NPPES is 4150 V St, Sacramento, CA 95817-1460.
- What is Calvin Hirsch's phone number?
- The practice phone number listed in the NPPES registry for Calvin Hirsch is (916) 734-7005.
- Does Calvin Hirsch accept Medicare?
- Calvin Hirsch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Hirsch's NPI active?
- Yes — Calvin Hirsch's NPI (1073597332) 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.