Dr Ravi Nandan Sinha, MD - Medicare Endocrinology in Williamsville, NY

Dr Ravi Nandan Sinha, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Williamsville, New York. He graduated from medical school in 1987 and has 39 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Buffalo Medical Group, P.c. and his current practice location is 325 Essjay Rd, Williamsville, New York. You can reach out to his office (for appointments etc.) via phone at (716) 857-8770.

Dr Ravi Nandan Sinha is licensed to practice in New York (license number 199136) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1134184328.

Contact Information

Dr Ravi Nandan Sinha, MD
325 Essjay Rd,
Williamsville, NY 14221-8243
(716) 857-8770
(716) 250-5976

Map and Direction




Physician's Profile

Full NameDr Ravi Nandan Sinha
GenderMale
SpecialityEndocrinology
Experience39 Years
Location325 Essjay Rd, Williamsville, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Ravi Nandan Sinha graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1134184328
  • Provider Enumeration Date: 04/19/2006
  • Last Update Date: 02/11/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3779514559
  • Enrollment ID: I20050823000034

Medical Identifiers

Medical identifiers for Dr Ravi Nandan Sinha such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134184328NPI-NPPES
161000580OtherNYEMPIRE
000526081005OtherNYHEALTH NOW
02067816MedicaidNY
00025087505OtherNYUNIVERA
2589275OtherNYGHI
0491510OtherNYIHA
199136-3WOtherNYWORKERS COMPENSATION
161000580OtherNYNORTH AMERICAN PREFERRED
2591224OtherNYNOVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 199136 (New York)Primary
207R00000XInternal Medicine 199136 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sisters Of Charity HospitalBuffalo, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Buffalo Medical Group, P.c.7012820301235

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 Ravi Nandan Sinha allows following entities to bill medicare on his behalf.
Entity NameBuffalo Medical Group, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881659506
PECOS PAC ID: 7012820301
Enrollment ID: O20031112000213

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 Ravi Nandan Sinha 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 Ravi Nandan Sinha, MD
425 Essjay Rd Ste 170,
Williamsville, NY 14221-8235

Ph: (716) 630-1219
Dr Ravi Nandan Sinha, MD
325 Essjay Rd,
Williamsville, NY 14221-8243

Ph: (716) 857-8770

Reviews and Comments


Internal Medicine Doctors in Williamsville, NY

John Daniel Picano, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 60 Maple Rd Ste 1, Williamsville, NY 14221
Phone: 716-626-5250    
Maria Kontos, DO
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 325 Essjay Rd, Williamsville, NY 14221
Phone: 716-656-4463    
Dr. Anderson Ka Ho Lai, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1540 Maple Rd, Williamsville, NY 14221
Phone: 716-568-3514    
Colleen Klos,
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1540 Maple Rd, Williamsville, NY 14221
Phone: 716-568-3514    
Dawn Patricia Hrab, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 1835 Maple Rd, Williamsville, NY 14221
Phone: 716-634-5410    Fax: 716-634-0430
Cheri A Gorski-suhr, RPAC
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 825 Wehrle Drive, Cardiology Group Of Western New York,pc, Williamsville, NY 14221
Phone: 716-634-3243    Fax: 716-634-1930
Yijun Cheng, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 295 Essjay Rd, Williamsville, NY 14221
Phone: 716-630-1048    

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.