What is May Chen's specialty?

May Chen (NPI 1881772887) is a Medicare-billing provider whose primary specialty is Nephrology in Mission Viejo, CA.

Where does May Chen practice?

May Chen practices in Mission Viejo, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1881772887.

How much does Medicare pay May Chen?

May Chen (NPI 1881772887) received approximately $172K in total Medicare Part B payments, serving 429 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1881772887

May ChenMD

NephrologyMission Viejo, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

856

Unique beneficiaries

—

Total services

1,477

Distinct HCPCS

Medicare payment

$159K

Peer benchmark

Total Medicare services vs. 985 Nephrology providers in CA — above median (cohort median 1,482).

PRESCRIBING · PART D · 2024

Total Rx claims

1,158

Beneficiaries

—

Total drug cost

$89K

Distinct drugs

Brand share

13.9%

Top prescribed drugs

Amlodipine Besylate95 claims

Losartan Potassium93 claims

Hydralazine Hcl76 claims

Furosemide68 claims

Metoprolol Succinate58 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Top paying entities

Food and Beverage$1K

REFERRAL NETWORK

Where 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). 44 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	122	433
Steven Sorenson Diagnostic Radiology · Redlands, CA	106	437
Jeffrey Dym Diagnostic Radiology · Laguna Niguel, CA	89	382
SADDLEBACK MEMORIAL MEDICAL CENTER	85	363
Navid Jahed Diagnostic Radiology · Mission Viejo, CA	74	226
NPI 1255335535	61	691
HERREN ENTERPRISES INC	58	473
Jackson Penry Diagnostic Radiology · Mission Viejo, CA	58	154
Habib Azad Nephrology · Mission Viejo, CA	58	211
Steve Tran Nephrology · Mission Viejo, CA	53	155
Absalom Hepner Cardiology · Mission Viejo, CA	39	173
Tze Ip Cardiology · Mission Viejo, CA	37	102

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