Dr Gregory Chang, MD, MBA - Medicare Emergency Medicine in New York, NY

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Dr Gregory Chang, MD, MBA is a medicare enrolled "Emergency Medicine - Emergency Medical Services" physician in New York, New York. His current practice location is 1275 York Ave, New York, New York. You can reach out to his office (for appointments etc.) via phone at (718) 250-8000.

Dr Gregory Chang is licensed to practice in New York (license number 326294-01) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1154940419.

Contact Information

Dr Gregory Chang, MD, MBA
1275 York Ave,
New York, NY 10065-6007
(718) 250-8000
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory Chang
GenderMale
SpecialityEmergency Medicine - Emergency Medical Services
Location1275 York Ave, New York, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154940419
  • Provider Enumeration Date: 04/15/2020
  • Last Update Date: 03/07/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 3173040375
  • Enrollment ID: I20250512001025

Medical Identifiers

Medical identifiers for Dr Gregory Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154940419NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services 326294-01 (New York)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Gregory Chang allows following entities to bill medicare on his behalf.
Entity NameMskcc Regional Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740251297
PECOS PAC ID: 6608765144
Enrollment ID: O20040312000936
Entity NameMemorial Urgent Care Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053364539
PECOS PAC ID: 6507878675
Enrollment ID: O20060608000286
Entity NameMsk Harrison
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174923593
PECOS PAC ID: 1052634045
Enrollment ID: O20141224000110
Entity NameMsk Nassau
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053875229
PECOS PAC ID: 8628311685
Enrollment ID: O20190522000541

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Gregory Chang is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Gregory Chang, MD, MBA
121 Dekalb Ave,
Brooklyn, NY 11201-5425

Ph: () -		Dr Gregory Chang, MD, MBA
1275 York Ave,
New York, NY 10065-6007

Ph: (718) 250-8000

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.