NPPES file of Aug 9, 2026

Kei-Lwun Yee, MD

Rheumatology Physician · Whittier, CA

Kei-Lwun Yee, MD is a rheumatology physician with a practice address in Whittier, California, and NPI 1649859885, issued on Apr 5, 2021. Check the license (California A181842, 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
1649859885
Name
Kei-Lwun Yee
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
A181842 CA
Self-reported in NPPES; status is on the state search
Practice location
12462 Putnam St Ste 402, Whittier, CA 90602
Phone
(562) 967-2788
Enumerated
Apr 5, 2021
Record last updated
Feb 4, 2026
Fax
(562) 789-4468
Medicare enrollment
Enrolled (PECOS I20260501000085); may accept Medicare assignment
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 12462 Putnam St Ste 402

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

  1. Daniel Lee, MDOrthopaedic Hand Surgery Physician1659533115
  2. Seyedehsara Seyedali, MDRheumatology Physician1336554328
  3. Jessica Wong, MDRheumatology Physician1437736550

Verify Kei-Lwun Yee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A181842
    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

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98% fewer Medicare Part D claims than the average rheumatology physician in 2024

36 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Kei-Lwun Yee36
  2. Specialty average1,978

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.

Industry payments in 2024: $226.41

3 payments; by number, the most common kind was food and beverage; the largest payer was Aurinia Pharma U.S., Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kei-Lwun Yee$226.41
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Kei-Lwun Yee among 926 rheumatology physician records in California

Kei-Lwun Yee, MD is one of 926 rheumatology 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 2021, is newer than 98% of them.

  • NPI issued2021 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2003 among the 641 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Gilbert Gelfand, M.D.Whittier, CA 906021942247580
  2. Branden Ireifej, MDWhittier, CA 906021811524853
  3. Seyedehsara Seyedali, MDWhittier, CA 906021336554328
  4. Tien I Su, M.D.Whittier, CA 906021750581930
  5. Jessica Wong, MDWhittier, CA 906021437736550
  6. Mimi Yang, PA-CWhittier, CA 906021659837250
  7. Edward Harris, M.D.Whittier, CA 906011780730838
  8. Tandis Mahani, MDWhittier, CA 906031245818178

Common questions

What is Kei-Lwun Yee, MD's NPI number?

Kei-Lwun Yee, MD's National Provider Identifier (NPI) is 1649859885, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Kei-Lwun Yee, MD located?

The NPPES record lists a practice address at 12462 Putnam St Ste 402, Whittier, CA, 90602. Phone: (562) 967-2788. Providers update this record themselves, so call before visiting.

How can I verify Kei-Lwun Yee, MD's license?

NPPES lists California license number A181842, 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 Kei-Lwun Yee, MD prescribe under Medicare Part D?

In 2024, Kei-Lwun Yee, MD had 36 Medicare Part D claims; the average among rheumatology physician prescribers was 1,978. 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.