Sandhya Mary John, M.D.
Anatomic Pathology & Clinical Pathology Physician · Fullerton, CA
Sandhya Mary John, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Fullerton, California, and NPI 1528402427, issued on Apr 22, 2013. Check the license (California A148769, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sandhya Mary John
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- A148769 CA
4301102426 MI
Self-reported in NPPES; status is on the state search - Practice location
- 101 E Valencia Mesa Dr, Fullerton, CA 92835
- Phone
- (714) 446-7505
- Enumerated
- Apr 22, 2013
- Record last updated
- Jun 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181010002766); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 101 E Valencia Mesa Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Abbott, MDEmergency Medicine Physician1518907864
- Nelson Aguinaga, RN, FNPFamily Nurse Practitioner1043909609
- Jonathon Ahn, MDAnesthesiology Physician1053803882
- Sora Ahn, RNCritical Care Medicine Registered Nurse1730026493
- Sherry Ansari, DPTPhysical Medicine & Rehabilitation Physician1467972992
- Tandeep Bains, PHARM.D.Pharmacist1568958114
Verify Sandhya Mary John in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A148769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- The Pathology Group IncFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sandhya Mary John among 1,554 anatomic pathology & clinical pathology physician records in California
Sandhya Mary John, M.D. is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2012 · median 2003 among the 891 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Fullerton → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Mark Boonyasampant, M.D.Fullerton, CA 928351396037537
- John Craig, M.D.Fullerton, CA 928351538112206
- Patrick Fitzgibbons, M.D.Fullerton, CA 928351568415743
- Aditya Kuwadekar, M.D.Fullerton, CA 928351790139285
- Jay Packer, M.D.Fullerton, CA 928351821033150
- Antony Chen, DOGarden Grove, CA 928431235327701
- Si Nguyen, M.D.Garden Grove, CA 928431841234952
- David Huebner-Chan, MDAnaheim, CA 928071134290190
Common questions
What is Sandhya Mary John, M.D.'s NPI number?
Sandhya Mary John, M.D.'s National Provider Identifier (NPI) is 1528402427, issued on Apr 22, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sandhya Mary John, M.D. located?
The NPPES record lists a practice address at 101 E Valencia Mesa Dr, Fullerton, CA, 92835. Phone: (714) 446-7505. Providers update this record themselves, so call before visiting.
How can I verify Sandhya Mary John, M.D.'s license?
NPPES lists California license number A148769, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.