John Lambert, M.D.
NPI 1437337391 · Pediatrics Physician · Fort Defiance, AZ
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Lambert, M.D. is a Pediatrics Physician provider in Fort Defiance, AZ (NPI 1437337391).
Provider details
- NPI number
- 1437337391
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 7754413-1205 (UT)
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
18 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
- 2008-02-03
- Last updated
- 2011-08-11
Frequently asked questions
- What is John Lambert's NPI number?
- John Lambert's National Provider Identifier (NPI) is 1437337391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lambert's specialty?
- John Lambert is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Lambert located?
- John Lambert's practice location on file with NPPES is Navajo Route N12 and N7, Fort Defiance, AZ 86504.
- What is John Lambert's phone number?
- The practice phone number listed in the NPPES registry for John Lambert is (928) 729-8000.
- Does John Lambert accept Medicare?
- John Lambert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Lambert's NPI active?
- Yes — John Lambert's NPI (1437337391) is active in the NPPES registry as of the last update on 2011-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.