William Lee, DO
Family Medicine Physician · Monterey Park, CA
William Lee, DO is a family medicine physician with a practice address in Monterey Park, California, and NPI 1952375966, issued on Feb 15, 2006. Check the license (California 20A5519, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Lee
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A5519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 885 S Atlantic Blvd, Monterey Park, CA 91754
- Phone
- (626) 281-9111
- Enumerated
- Feb 15, 2006
- Record last updated
- Jan 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (626) 281-9499
- Medicaid IDs
- GR0101100 CA
00AX55190 CA - Medicare enrollment
- Enrolled (PECOS I20040302000481); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1987
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 885 S Atlantic Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kendrick Ng, DOInternal Medicine Physician1225002231
Verify William Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A5519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average family medicine physician in 2024
6,634 Medicare Part D claims for 342 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium502 claims
- Losartan Potassium352 claims
- Amlodipine Besylate318 claims
- Azithromycin265 claims
- Vascepa226 claims
- Metoprolol Succinate223 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): 20.5 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: $158.41
7 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
William Lee among 17,133 family medicine physician records in California
William Lee, DO is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1987 · median 2005 among the 10,652 with a school on file
- Record last updated2008 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 family medicine physician records list a practice address in Monterey Park
They are 28 of the 948 NPPES records with a practice address in Monterey Park, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Monterey Park → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Singh Boun, MDMonterey Park, CA 917541801855028
- David Dilettera, DOMonterey Park, CA 917541609933845
- Frank Han, M.D.Monterey Park, CA 917541154424034
- Harel Ho, M.D.Monterey Park, CA 917541578501714
- Shinobu Kaneko, M.D.Monterey Park, CA 917541750388633
- Yu-Hsiang Lee, D.O.Monterey Park, CA 917541245262013
- Terry Lee, M.D.Monterey Park, CA 917541184796104
- Gow-Nan Ling, M.D.Monterey Park, CA 917541700854585
Common questions
What is William Lee, DO's NPI number?
William Lee, DO's National Provider Identifier (NPI) is 1952375966, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Lee, DO located?
The NPPES record lists a practice address at 885 S Atlantic Blvd, Monterey Park, CA, 91754. Phone: (626) 281-9111. Providers update this record themselves, so call before visiting.
How can I verify William Lee, DO's license?
NPPES lists California license number 20A5519, 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 William Lee, DO prescribe under Medicare Part D?
In 2024, William Lee, DO had 6,634 Medicare Part D claims for 342 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is William Lee, DO's MIPS final score?
The 2023 MIPS final score is 20.5 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.