Kok-Fon Lee, M.D.
Internal Medicine Physician · Alhambra, CA
Kok-Fon Lee, M.D. is an internal medicine physician with a practice address in Alhambra, California, and NPI 1154561900, issued on Mar 5, 2009. Check the license (California A106497, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kok-Fon Lee
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A106497 CA
Self-reported in NPPES; status is on the state search - Practice location
- 925 S Garfield Ave, Alhambra, CA 91801
- Phone
- (626) 282-0282
- Enumerated
- Mar 5, 2009
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (626) 282-0939
- Medicaid ID
- PENDING CA
- Medicare enrollment
- Enrolled (PECOS I20101227000219); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 925 S Garfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hoi Lok Chan, FNP-CFamily Nurse Practitioner1205697612
- Justin Chan, M.D.Family Medicine Physician1003818501
- Min-O Chuang, N.P.Acute Care Nurse Practitioner1902183809
- Thomas HanFamily Nurse Practitioner1184348617
- Donna HongFamily Nurse Practitioner1326460338
- Jin Hong, M.D.Internal Medicine Physician1972516441
Verify Kok-Fon Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106497Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,151 Medicare Part D claims for 1,314 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 368 claims were for opioids.
Most prescribed
- Atorvastatin Calcium705 claims
- Losartan Potassium394 claims
- Amlodipine Besylate353 claims
- Lisinopril327 claims
- Metformin Hcl290 claims
- Omeprazole209 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
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kok-Fon Lee among 17,696 internal medicine physician records in California
Kok-Fon Lee, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1988 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 internal medicine physician records list a practice address in Alhambra
They are 41 of the 1,802 NPPES records with a practice address in Alhambra, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Alhambra → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Chan, MDAlhambra, CA 918011508826488
- Alexander Chan, MDAlhambra, CA 918011467413666
- Joyce Chang, M.D.Alhambra, CA 918011952357600
- Max Chiou, MDAlhambra, CA 918011316963051
- Jin Hong, M.D.Alhambra, CA 918011972516441
- Thein Htay, M.D.Alhambra, CA 918011861594228
- Nu Khin, M.D.Alhambra, CA 918011881655199
- Eddie Lam, M.D.Alhambra, CA 918011518969971
Common questions
What is Kok-Fon Lee, M.D.'s NPI number?
Kok-Fon Lee, M.D.'s National Provider Identifier (NPI) is 1154561900, issued on Mar 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Kok-Fon Lee, M.D. located?
The NPPES record lists a practice address at 925 S Garfield Ave, Alhambra, CA, 91801. Phone: (626) 282-0282. Providers update this record themselves, so call before visiting.
How can I verify Kok-Fon Lee, M.D.'s license?
NPPES lists California license number A106497, 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 Kok-Fon Lee, M.D. prescribe under Medicare Part D?
In 2024, Kok-Fon Lee, M.D. had 8,151 Medicare Part D claims for 1,314 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.