Ralph Koldinger, M.D.
NPI 1952421703 · Gastroenterology Physician · Sacramento, CA
Ralph Koldinger, M.D. is a Gastroenterology Physician provider in Sacramento, CA (NPI 1952421703).
Provider details
- NPI number
- 1952421703
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G9968 (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
- 2007-03-29
- Last updated
- 2015-07-10
Frequently asked questions
- What is Ralph Koldinger's NPI number?
- Ralph Koldinger's National Provider Identifier (NPI) is 1952421703, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Koldinger's specialty?
- Ralph Koldinger is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph Koldinger located?
- Ralph Koldinger's practice location on file with NPPES is 3941 J Street, Sacramento, CA 95819.
- What is Ralph Koldinger's phone number?
- The practice phone number listed in the NPPES registry for Ralph Koldinger is (916) 454-0655.
- Is Ralph Koldinger's NPI active?
- Yes — Ralph Koldinger's NPI (1952421703) is active in the NPPES registry as of the last update on 2015-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.