Catherine Frelinger, MD
NPI 1225535636 · Developmental - Behavioral Pediatrics Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Frelinger, MD is a Developmental - Behavioral Pediatrics Physician provider in San Jose, CA (NPI 1225535636).
Provider details
- NPI number
- 1225535636
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-04-11
- Last updated
- 2024-08-16
- Certified
- 2024-08-16
Frequently asked questions
- What is Catherine Frelinger's NPI number?
- Catherine Frelinger's National Provider Identifier (NPI) is 1225535636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Frelinger's specialty?
- Catherine Frelinger is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Frelinger located?
- Catherine Frelinger's practice location on file with NPPES is 750 S Bascom Ave, San Jose, CA 95128-2603.
- What is Catherine Frelinger's phone number?
- The practice phone number listed in the NPPES registry for Catherine Frelinger is (408) 885-7709.
- Does Catherine Frelinger accept Medicare?
- Catherine Frelinger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Frelinger's NPI active?
- Yes — Catherine Frelinger's NPI (1225535636) is active in the NPPES registry as of the last update on 2024-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.