Dr Shirley S Chang, MD - Medicare Nephrology in Buffalo, NY

Dr Shirley S Chang, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Buffalo, New York. She went to University Of Pittsburgh School Of Medicine and graduated in 1994 and has 30 years of diverse experience with area of expertise as Nephrology. She is a member of the group practice Erie County Medical Center Corporation and her current practice location is 462 Grider St, Buffalo, New York. You can reach out to her office (for appointments etc.) via phone at (716) 898-3000.

Dr Shirley S Chang is licensed to practice in New York (license number 236591) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1720063753.

Contact Information

Dr Shirley S Chang, MD
462 Grider St,
Buffalo, NY 14215-3021
(716) 898-3000
Not Available

Map and Direction




Physician's Profile

Full NameDr Shirley S Chang
GenderFemale
SpecialityNephrology
Experience30 Years
Location462 Grider St, Buffalo, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Shirley S Chang attended and graduated from University Of Pittsburgh School Of Medicine in 1994
  NPI Data:
  • NPI Number: 1720063753
  • Provider Enumeration Date: 12/13/2005
  • Last Update Date: 08/24/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 8921031329
  • Enrollment ID: I20050915000990

Medical Identifiers

Medical identifiers for Dr Shirley S Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1720063753NPI-NPPES
02669469MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 042.0012325 (Vermont)Secondary
207RN0300XInternal Medicine - Nephrology 236591 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Erie County Medical CenterBuffalo, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Erie County Medical Center Corporation1456308907115

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 Shirley S Chang allows following entities to bill medicare on her behalf.
Entity NameAcademic Medicine Services, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255394763
PECOS PAC ID: 0941105241
Enrollment ID: O20040429000839
Entity NameErie County Medical Center Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528233616
PECOS PAC ID: 1456308907
Enrollment ID: O20050715000538

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 Shirley S 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 Shirley S Chang, MD
908 Niagara Falls Blvd Ste 208,
North Tonawanda, NY 14120-2019

Ph: (716) 692-3302
Dr Shirley S Chang, MD
462 Grider St,
Buffalo, NY 14215-3021

Ph: (716) 898-3000

Reviews and Comments


Internal Medicine Doctors in Buffalo, NY

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Sanjivini Wadhwa, MD
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Practice Location: 462 Grider St, Buffalo, NY 14215
Phone: 716-898-4119    

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).

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