Catherine Nagy, MD
NPI 1477656817 · Allergy Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Nagy, MD is a Allergy Physician provider in Sacramento, CA (NPI 1477656817).
Provider details
- NPI number
- 1477656817
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A65532 (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
- 2006-09-07
- Last updated
- 2021-12-17
Frequently asked questions
- What is Catherine Nagy's NPI number?
- Catherine Nagy's National Provider Identifier (NPI) is 1477656817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Nagy's specialty?
- Catherine Nagy is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Nagy located?
- Catherine Nagy's practice location on file with NPPES is 4801 J St, Sacramento, CA 95819-3741.
- What is Catherine Nagy's phone number?
- The practice phone number listed in the NPPES registry for Catherine Nagy is (916) 456-4782.
- Does Catherine Nagy accept Medicare?
- Catherine Nagy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Nagy's NPI active?
- Yes — Catherine Nagy's NPI (1477656817) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.