Dr Adnan K Diwan, MD - Medicare Internal Medicine in Rye, NY

Dr Adnan K Diwan, MD is a medicare enrolled "Internal Medicine" physician in Rye, New York. He went to New York University School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice The Westchester Medical Group, P.c, The Westchester Medical Group, P.c and his current practice location is 1 Theall Rd, Rye, New York. You can reach out to his office (for appointments etc.) via phone at (914) 848-8700.

Dr Adnan K Diwan is licensed to practice in New York (license number 236586) 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 1144279878.

Contact Information

Dr Adnan K Diwan, MD
1 Theall Rd,
Rye, NY 10580-1404
(914) 848-8700
(914) 682-6403

Map and Direction




Physician's Profile

Full NameDr Adnan K Diwan
GenderMale
SpecialityInternal Medicine
Experience22 Years
Location1 Theall Rd, Rye, 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 Adnan K Diwan attended and graduated from New York University School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1144279878
  • Provider Enumeration Date: 05/09/2006
  • Last Update Date: 10/16/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 8628087798
  • Enrollment ID: I20060418000507

Medical Identifiers

Medical identifiers for Dr Adnan K Diwan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144279878NPI-NPPES
13174011BOtherNHADMIN
13174011BOtherPOMCO
131740118OtherCIGNA
WEU121OtherNYMEDICARE GROUP
131740118OtherMAGNACARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 236586 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Vitas Healthcare CorporationMiddlebury, CTHospice
Greenwich Hospital Association -Greenwich, CTHospital
The OsbornRye, NYNursing home
Greenwich Woods RehabilitationGreenwich, CTNursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Westchester Medical Group, P.c6406752963400
The Westchester Medical Group, P.c6406752963400

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 Adnan K Diwan allows following entities to bill medicare on his behalf.
Entity NameThe Westchester Medical Group, P.c
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881653822
PECOS PAC ID: 6406752963
Enrollment ID: O20031208000533

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 Adnan K Diwan 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 Adnan K Diwan, MD
210 Westchester Ave,
White Plains, NY 10604-2901

Ph: (914) 682-6538
Dr Adnan K Diwan, MD
1 Theall Rd,
Rye, NY 10580-1404

Ph: (914) 848-8700

Reviews and Comments


Internal Medicine Doctors in Rye, NY

Dr. Eric Sun, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-848-8777    
Dr. David A Herzog, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-848-8700    Fax: 914-682-6403
Dr. Eileen Sacharski, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-848-8700    Fax: 914-682-6403
Ian Yarett,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-848-8700    Fax: 914-848-8701
Dr. James Joseph Doyle Iii, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-681-3146    Fax: 914-682-6403
Dr. William Martimucci, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Theall Rd, Rye, NY 10580
Phone: 914-848-8700    Fax: 914-682-6403

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.