What is Peter Chang's specialty?

Peter Chang (NPI 1619995610) is a Medicare-billing provider whose primary specialty is Gastroenterology in New York, NY.

Where does Peter Chang practice?

Peter Chang practices in New York, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1619995610.

How much does Medicare pay Peter Chang?

Peter Chang (NPI 1619995610) received approximately $209K in total Medicare Part B payments, serving 262 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619995610

Peter ChangM.D.

PRACTICESTEVEN MANDEL, MD PCSee all providers at this practice →

GastroenterologyNew York, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

536

Unique beneficiaries

—

Total services

867

Distinct HCPCS

Medicare payment

$58K

Peer benchmark

Total Medicare services vs. 1,360 Gastroenterology providers in NY — top quintile (cohort median 521).

PRESCRIBING · PART D · 2024

Total Rx claims

408

Beneficiaries

—

Total drug cost

$113K

Distinct drugs

Brand share

23.5%

Top prescribed drugs

Omeprazole131 claims

Linaclotide39 claims

Pantoprazole Sodium33 claims

Famotidine32 claims

Sod Picosulf/Mag Ox/Citric Ac27 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$13K

Payment records

245

By payment type

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$7K

Food and Beverage$5K

Travel and Lodging$183

Top paying entities

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$7K

Food and Beverage$5K

Travel and Lodging$183

REFERRAL NETWORK

Where Peter Chang'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Carnegie Hill Endoscopy Llc Ambulatory Surgical Center · New York, NY	97	130
MOUNT SINAI HOSPITAL	25	48
Stephen Ward Pathology · New York, NY	19	23
Alexandros Polydorides Pathology · New York, NY	13	13
MEHTA, JAYDEV	13	15

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