Stanley R. Hamilton, M.D.
Anatomic Pathology & Clinical Pathology Physician · Duarte, CA
Stanley R. Hamilton, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Duarte, California, and NPI 1730275637, issued on Oct 5, 2006. Check the license (California C169583, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stanley R. Hamilton
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- C169583 CA
L1507 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Duarte RD, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Oct 5, 2006
- Record last updated
- Nov 27, 2023
- Medicaid ID
- 38796101 TX
- Medicare enrollment
- Enrolled (PECOS I20200818001803); 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 1500 Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
- Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565
Verify Stanley R. Hamilton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C169583Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City OF Hope Medical FoundationDuarte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stanley R. Hamilton among 1,554 anatomic pathology & clinical pathology physician records in California
Stanley R. Hamilton, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 57% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1973 · median 2003 among the 891 with a school on file
- Record last updated2023 · 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).
30 anatomic pathology & clinical pathology physician records list a practice address in Duarte
They are 30 of the 1,287 NPPES records with a practice address in Duarte, and 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Duarte → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Leonidas Arvanitis, M.D.Duarte, CA 910101669628764
- Rania Bakkar, MDDuarte, CA 910101962613257
- Karen Chang, MDDuarte, CA 910101518924398
- Peiguo Chu, MDDuarte, CA 910101912964974
- Fang Fan, MD, PHDDuarte, CA 910101316058415
- Kate Grimm, M.D.Duarte, CA 910101487840419
- Qin Huang, MDDuarte, CA 910101760448856
- Sean Lau, MDDuarte, CA 910101306803101
Common questions
What is Stanley R. Hamilton, M.D.'s NPI number?
Stanley R. Hamilton, M.D.'s National Provider Identifier (NPI) is 1730275637, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stanley R. Hamilton, M.D. located?
The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Stanley R. Hamilton, M.D.'s license?
NPPES lists California license number C169583, 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.
What is Stanley R. Hamilton, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.