Jefferson Chan, M.D., PH.D.
NPI 1871713271 · Clinical Pathology/Laboratory Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jefferson Chan, M.D., PH.D. is a Clinical Pathology/Laboratory Medicine Physician provider in Orange, CA (NPI 1871713271).
Provider details
- NPI number
- 1871713271
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G84497 (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
19 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
- 2007-04-26
- Last updated
- 2008-03-25
Frequently asked questions
- What is Jefferson Chan's NPI number?
- Jefferson Chan's National Provider Identifier (NPI) is 1871713271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jefferson Chan's specialty?
- Jefferson Chan is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jefferson Chan located?
- Jefferson Chan's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Jefferson Chan's phone number?
- The practice phone number listed in the NPPES registry for Jefferson Chan is (714) 456-6141.
- Does Jefferson Chan accept Medicare?
- Jefferson Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jefferson Chan's NPI active?
- Yes — Jefferson Chan's NPI (1871713271) is active in the NPPES registry as of the last update on 2008-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.