Maria Lin, M.D.
NPI 1891936456 · Pediatrics Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Lin, M.D. is a Pediatrics Physician provider in Fontana, CA (NPI 1891936456).
Provider details
- NPI number
- 1891936456
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A106642 (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
17 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
- 2009-03-11
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Maria Lin's NPI number?
- Maria Lin's National Provider Identifier (NPI) is 1891936456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Lin's specialty?
- Maria Lin is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Lin located?
- Maria Lin's practice location on file with NPPES is 9985 Sierra Ave, Fontana, CA 92335-6720.
- What is Maria Lin's phone number?
- The practice phone number listed in the NPPES registry for Maria Lin is (888) 750-0036.
- Does Maria Lin accept Medicare?
- Maria Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Lin's NPI active?
- Yes — Maria Lin's NPI (1891936456) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.