NPPES file of Aug 9, 2026

Dorcas Chi, M.D.

Hematology & Oncology Physician · Alhambra, CA

Dorcas Chi, M.D. is a hematology & oncology physician with a practice address in Alhambra, California, and NPI 1922040609, issued on Jun 10, 2006. Check the license (California C159144, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922040609
Name
Dorcas Chi
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
C159144 CA
226137 MA
Self-reported in NPPES; status is on the state search
Practice location
1411 S Garfield Ave Ste 200, Alhambra, CA 91801
Phone
(626) 588-2825
Enumerated
Jun 10, 2006
Record last updated
Feb 22, 2023
Fax
(626) 588-2850
Medicare enrollment
Enrolled (PECOS I20190408000756); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1411 S Garfield Ave Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gavin Hui, MDHematology & Oncology Physician1083175327
  2. Yi-Kong Keung, MDHematology & Oncology Physician1326023482
  3. Fernando VazquezBehavior Technician1912710963

Verify Dorcas Chi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C159144
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

872 Medicare Part D claims for 164 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 16 claims were for opioids.

  1. Dorcas Chi872
  2. Specialty average877

Most prescribed

  1. Anastrozole257 claims
  2. Tamoxifen Citrate70 claims
  3. Letrozole61 claims
  4. Ondansetron Hcl24 claims
  5. Ibrance21 claims
  6. Duloxetine Hcl20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaAlhambra, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dorcas Chi among 1,583 hematology & oncology physician records in California

Dorcas Chi, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2003 · median 2003 among the 1,124 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Gavin Hui, MDAlhambra, CA 918011083175327
  2. Yi-Kong Keung, MDAlhambra, CA 918011326023482
  3. Lydia Chow, M.D.West Covina, CA 917901770087314
  4. Subhash Dhand, M.D.West Covina, CA 917901497930903
  5. Michelle El-Hajjaoui, DOWest Covina, CA 917901184010662
  6. Phyllis Klein, M.D.West Covina, CA 917901932166519
  7. Brian Leberthon, M.D.West Covina, CA 917901326023979
  8. Cary Presant, M.D.West Covina, CA 917901538109517

Common questions

What is Dorcas Chi, M.D.'s NPI number?

Dorcas Chi, M.D.'s National Provider Identifier (NPI) is 1922040609, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dorcas Chi, M.D. located?

The NPPES record lists a practice address at 1411 S Garfield Ave Ste 200, Alhambra, CA, 91801. Phone: (626) 588-2825. Providers update this record themselves, so call before visiting.

How can I verify Dorcas Chi, M.D.'s license?

NPPES lists California license number C159144, 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.

How much does Dorcas Chi, M.D. prescribe under Medicare Part D?

In 2024, Dorcas Chi, M.D. had 872 Medicare Part D claims for 164 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

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.