Fa-Chyi Lee, M.D.
Hematology & Oncology Physician · Orange, CA
Fa-Chyi Lee, M.D. is a hematology & oncology physician with a practice address in Orange, California, and NPI 1366594855, issued on Jan 17, 2007. Check the license (California G77104, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fa-Chyi Lee
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- G77104 CA
99-241 NM
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S Bldg 23, Orange, CA 92868
- Phone
- (714) 456-8000
- Enumerated
- Jan 17, 2007
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 00Z6835 NM
- Medicare enrollment
- Enrolled (PECOS I20171102002358); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 101 The City Dr S Bldg 23
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Annamarie Bedia, NPNurse Practitioner1780875005
- Elizabeth Brem, MDHematology & Oncology Physician1578883781
- Zahra Sadat Hamedi, MDHematology & Oncology Physician1053974451
- Krishna Hanubal, MDRadiation Oncology Physician1568154458
- Garrett Harada, MDRadiation Oncology Physician1831726330
- Jeremy Harris, MDRadiation Oncology Physician1922427053
Verify Fa-Chyi Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77104Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
457 Medicare Part D claims for 76 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 27 claims were for opioids.
Most prescribed
- Imatinib Mesylate36 claims
- Lenvima30 claims
- Eliquis26 claims
- Ondansetron Hcl23 claims
- Prochlorperazine Maleate23 claims
- Creon22 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $133.29
1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fa-Chyi Lee among 1,583 hematology & oncology physician records in California
Fa-Chyi Lee, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1991 · 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.
All 1,583 in California → Every provider in Orange → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Timothy Byun, MDOrange, CA 928681871545012
- Warren Chow, MDOrange, CA 928681093822017
- Paul Coluzzi, M.D.Orange, CA 928681972563906
- Mihaela Cristea, MDOrange, CA 928681417050998
- Sam Huang, M.D.Orange, CA 928681841248812
- Tiberio Lindgren, MDOrange, CA 928681275585424
- John Link, MDOrange, CA 928681245281211
- Steven Lipkin, MDOrange, CA 928681134153547
Common questions
What is Fa-Chyi Lee, M.D.'s NPI number?
Fa-Chyi Lee, M.D.'s National Provider Identifier (NPI) is 1366594855, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Fa-Chyi Lee, M.D. located?
The NPPES record lists a practice address at 101 The City Dr S Bldg 23, Orange, CA, 92868. Phone: (714) 456-8000. Providers update this record themselves, so call before visiting.
How can I verify Fa-Chyi Lee, M.D.'s license?
NPPES lists California license number G77104, 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 Fa-Chyi Lee, M.D. prescribe under Medicare Part D?
In 2024, Fa-Chyi Lee, M.D. had 457 Medicare Part D claims for 76 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Fa-Chyi Lee, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.