NPPES file of Aug 9, 2026

Stephen Jae-Jin Lee, MD

Gynecologic Oncology Physician · Duarte, CA

Stephen Jae-Jin Lee, MD is a gynecologic oncology physician with a practice address in Duarte, California, and NPI 1114185923, issued on May 29, 2008. Check the license (California A137492, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114185923
Name
Stephen Jae-Jin Lee
Credential
MD
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License numbers
A137492 CA
260997 NY
Self-reported in NPPES; status is on the state search
Practice location
1500 Duarte RD, Duarte, CA 91010
Phone
(626) 471-7100
Enumerated
May 29, 2008
Record last updated
Nov 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(626) 471-7155
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1500 Duarte RD

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

  1. Chelsea Abad, CRNP, AGPCNP - BCGerontology Nurse Practitioner1952848137
  2. Wajidah Abdul-KhabirHospitalist Physician1215323522
  3. Farah Abdulla, MDDermatology Physician1093934390
  4. Megan Abel, PA-CPhysician Assistant1104100619
  5. Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
  6. Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565

Verify Stephen Jae-Jin Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A137492
    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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71% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

56 Medicare Part D claims for 30 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Stephen Lee56
  2. Specialty average195

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 practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $11,190.30

25 payments; by number, the most common kind was consulting fee; the largest payer was Ethicon Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Lee$11,190
  2. Specialty average$6,387

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

Stephen Jae-Jin Lee among 176 gynecologic oncology physician records in California

Stephen Jae-Jin Lee, MD is one of 176 gynecologic oncology physician records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.

  • NPI issued2008 · 57% of these records are older, 35% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2020 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in California

There are 176 gynecologic oncology physician records in California.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Thanh Dellinger, M.D.Duarte, CA 910101073730891
  2. Ernest Han, MDDuarte, CA 910101639247950
  3. Lorna Rodriguez, MD, PHDDuarte, CA 910101457436719
  4. Mihae Song, MDDuarte, CA 910101144665423
  5. Mark Wakabayashi, MDDuarte, CA 910101467547398
  6. Alan Schlaerth, M.D.Arcadia, CA 910071043239049
  7. Lynda Roman, M.D.Pasadena, CA 911051386649713
  8. Paul Lin, M.D.Pasadena, CA 911061083619100

Common questions

What is Stephen Jae-Jin Lee, MD's NPI number?

Stephen Jae-Jin Lee, MD's National Provider Identifier (NPI) is 1114185923, issued on May 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Jae-Jin Lee, MD located?

The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 471-7100. Providers update this record themselves, so call before visiting.

How can I verify Stephen Jae-Jin Lee, MD's license?

NPPES lists California license number A137492, 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 Stephen Jae-Jin Lee, MD prescribe under Medicare Part D?

In 2024, Stephen Jae-Jin Lee, MD had 56 Medicare Part D claims for 30 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.

What is Stephen Jae-Jin Lee, MD's MIPS final score?

The 2023 MIPS final score is 99.1 of 100, reported for the practice group. 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.