Catherine Gritchen, MD
NPI 1861482143 · Pediatrics Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Gritchen, MD is a Pediatrics Physician provider in Long Beach, CA (NPI 1861482143).
Provider details
- NPI number
- 1861482143
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A79436 (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
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
- 2005-10-26
- Last updated
- 2016-05-20
Frequently asked questions
- What is Catherine Gritchen's NPI number?
- Catherine Gritchen's National Provider Identifier (NPI) is 1861482143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Gritchen's specialty?
- Catherine Gritchen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Gritchen located?
- Catherine Gritchen's practice location on file with NPPES is 2110 N Bellflower Blvd, Long Beach, CA 90815-3126.
- What is Catherine Gritchen's phone number?
- The practice phone number listed in the NPPES registry for Catherine Gritchen is (562) 346-2222.
- Does Catherine Gritchen accept Medicare?
- Catherine Gritchen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Gritchen's NPI active?
- Yes — Catherine Gritchen's NPI (1861482143) is active in the NPPES registry as of the last update on 2016-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.