What is May Chan's specialty?

May Chan (NPI 1639318223) is a Medicare-billing provider whose primary specialty is Pathology in Ann Arbor, MI.

Where does May Chan practice?

May Chan practices in Ann Arbor, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1639318223.

How much does Medicare pay May Chan?

May Chan (NPI 1639318223) received approximately $47K in total Medicare Part B payments, serving 671 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639318223

May ChanM.D.

PathologyAnn Arbor, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

972

Unique beneficiaries

—

Total services

1,488

Distinct HCPCS

Medicare payment

$46K

Peer benchmark

Total Medicare services vs. 428 Pathology providers in MI — above median (cohort median 1,146).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$19

Payment records

By payment type

Food and Beverage$19

Top paying entities

Food and Beverage$19

REFERRAL NETWORK

Where May Chan'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). 37 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	931	2,964
REGENTS OF THE UNIVERSITY OF MICHIGAN	91	152
NPI 1306933148	53	223
Alison Durham Dermatology · Canton, OH	45	109
Frank Wang Dermatology · Ann Arbor, MI	43	161
Kelly Harms Micrographic Dermatologic Surgery · Ann Arbor, MI	38	93
Yolanda Helfrich Dermatology · Ann Arbor, MI	36	122
Timothy Johnson Micrographic Dermatologic Surgery · Ann Arbor, MI	31	72
Kevin Gaffney Dermatology · Flint, MI	30	88
Jennifer Nash Dermatology · Midland, MI	28	70
Aamer Chughtai Diagnostic Radiology · Ann Arbor, MI	28	46
QUEST DIAGNOSTICS INCORPORATED MI	28	65

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