John Petersen, M.D.
NPI 1619361805 · Pediatrics Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Petersen, M.D. is a Pediatrics Physician provider in Los Angeles, CA (NPI 1619361805).
Provider details
- NPI number
- 1619361805
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A148419 (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
11 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
- 2015-03-25
- Last updated
- 2019-12-17
- Certified
- 2019-12-17
Frequently asked questions
- What is John Petersen's NPI number?
- John Petersen's National Provider Identifier (NPI) is 1619361805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Petersen's specialty?
- John Petersen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Petersen located?
- John Petersen's practice location on file with NPPES is 757 Westwood Plz, Los Angeles, CA 90095-7419.
- What is John Petersen's phone number?
- The practice phone number listed in the NPPES registry for John Petersen is (310) 267-9129.
- Does John Petersen accept Medicare?
- John Petersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Petersen's NPI active?
- Yes — John Petersen's NPI (1619361805) is active in the NPPES registry as of the last update on 2019-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.