What is Lee-May Chen's specialty?

Lee-May Chen (NPI 1902861883) is a Medicare-billing provider whose primary specialty is Obstetrics & Gynecology in San Francisco, CA.

Where does Lee-May Chen practice?

Lee-May Chen practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1902861883.

How much does Medicare pay Lee-May Chen?

Lee-May Chen (NPI 1902861883) received approximately $343K in total Medicare Part B payments, serving 146 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902861883

Lee-May ChenMD

PRACTICEUCSF MEDICAL CENTERSee all providers at this practice →

Obstetrics & GynecologySan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

209

Unique beneficiaries

—

Total services

352

Distinct HCPCS

Medicare payment

$28K

Peer benchmark

Total Medicare services vs. 1,761 Obstetrics & Gynecology providers in CA — top quintile (cohort median 118).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$643

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Ondansetron Hcl20 claims

Dexamethasone16 claims

Prochlorperazine Maleate15 claims

QUALITY · MIPS · 2024

Final MIPS score

87.0

Quality

86.8

Cost

70.5

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.51%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$265

Payment records

By payment type

Compensation for serving as faculty or as a speaker for a medical education program$167

Travel and Lodging$58

Food and Beverage$40

Top paying entities

Compensation for serving as faculty or as a speaker for a medical education program$167

Travel and Lodging$58

Food and Beverage$40

REFERRAL NETWORK

Where Lee-May Chen's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CITY & COUNTY OF SAN FRANCISCO	47	192
Gordon Fung Cardiology · San Francisco, CA	17	106
Karuna Garg Pathology · New York, NY	14	37
Joseph Rabban Pathology · San Francisco, CA	14	54
American Medical Response West Ambulance Service Provider · San Francisco, CA	13	36
Rebecca Brooks Gynecological Oncology · Sacramento, CA	13	48
Spencer Behr Diagnostic Radiology · San Francisco, CA	12	52
Zhen Wang Diagnostic Radiology · San Francisco, CA	12	66

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events