James Gehrig, MD
NPI 1619049434 · Nephrology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Gehrig, MD is a Nephrology Physician provider in Sacramento, CA (NPI 1619049434).
Provider details
- NPI number
- 1619049434
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G42960 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2021-12-01
- Certified
- 2021-12-01
Frequently asked questions
- What is James Gehrig's NPI number?
- James Gehrig's National Provider Identifier (NPI) is 1619049434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Gehrig's specialty?
- James Gehrig is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is James Gehrig located?
- James Gehrig's practice location on file with NPPES is 2025 Morse Ave, Sacramento, CA 95825-2115.
- What is James Gehrig's phone number?
- The practice phone number listed in the NPPES registry for James Gehrig is (916) 973-5000.
- Does James Gehrig accept Medicare?
- James Gehrig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Gehrig's NPI active?
- Yes — James Gehrig's NPI (1619049434) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.