David Matthew Stein, MD - Medicare Internal Medicine in Westborough, MA

David Matthew Stein, MD is a medicare enrolled "Internal Medicine" physician in Westborough, Massachusetts. He went to University Of Massachusetts Medical School and graduated in 2018 and has 6 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Reliant Medical Group Inc and his current practice location is 900 Union St, Westborough, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 871-0700.

David Matthew Stein is licensed to practice in Massachusetts (license number 285771) 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 1245729656.

Contact Information

David Matthew Stein, MD
900 Union St,
Westborough, MA 01581-5408
(508) 871-0700
(508) 616-4411

Map and Direction




Physician's Profile

Full NameDavid Matthew Stein
GenderMale
SpecialityInternal Medicine
Experience6 Years
Location900 Union St, Westborough, Massachusetts
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:
  • David Matthew Stein attended and graduated from University Of Massachusetts Medical School in 2018
  NPI Data:
  • NPI Number: 1245729656
  • Provider Enumeration Date: 05/02/2018
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2668723339
  • Enrollment ID: I20210611001970

Medical Identifiers

Medical identifiers for David Matthew Stein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245729656NPI-NPPES
110135521AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 285771 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Vna Care NetworkWorcester, MAHome health agency
Umass Memorial Healthcare-marlborough HospitalMarlborough, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Reliant Medical Group Inc5597755322543

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. David Matthew Stein allows following entities to bill medicare on his behalf.
Entity NameReliant Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720017528
PECOS PAC ID: 5597755322
Enrollment ID: O20040708000650

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. David Matthew Stein 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
David Matthew Stein, MD
900 Union St,
Westborough, MA 01581-5408

Ph: (508) 871-0700
David Matthew Stein, MD
900 Union St,
Westborough, MA 01581-5408

Ph: (508) 871-0700

Reviews and Comments


Internal Medicine Doctors in Westborough, MA

Dr. Nandana Kansra, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 112 Turnpike Rd Ste 301, Westborough, MA 01581
Phone: 508-366-1560    Fax: 508-386-2815
Ninad N Samant, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 Union St, Westborough, MA 01581
Phone: 508-871-0700    Fax: 508-616-4411
Dr. Anthony Martin Zizza Iii, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1400 Computer Dr Ste 301, Westborough, MA 01581
Phone: 617-420-5316    
Maria Lourdes S Angeles, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Umass Correctional Health Program, One Research Drive, Westborough, MA 01581
Phone: 508-475-3220    
Dr. John B Mccahan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 33 E Main St, Westborough, MA 01581
Phone: 508-836-4884    Fax: 508-836-3351
Dr. Gordon S Manning, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 154 E Main St, Suite 101, Westborough, MA 01581
Phone: 508-366-1120    
Matthew K Bonner, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 19 Overlook Dr, Westborough, MA 01581
Phone: 508-366-8734    

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.