Dr Gary Ira Portnay, MD - Medicare Internal Medicine in Andover, MA

Dr Gary Ira Portnay, MD is a medicare enrolled "Internal Medicine" physician in Andover, Massachusetts. His current practice location is 13 Bateson Drive, Andover, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 879-2061.

Dr Gary Ira Portnay is licensed to practice in Massachusetts (license number 32439) 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 1346289345.

Contact Information

Dr Gary Ira Portnay, MD
13 Bateson Drive,
Andover, MA 01810-3401
(781) 879-2061
(781) 862-6004

Map and Direction




Physician's Profile

Full NameDr Gary Ira Portnay
GenderMale
SpecialityInternal Medicine
Location13 Bateson Drive, Andover, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1346289345
  • Provider Enumeration Date: 06/05/2006
  • Last Update Date: 06/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3072560002
  • Enrollment ID: I20050425000451

Medical Identifiers

Medical identifiers for Dr Gary Ira Portnay such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346289345NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 32439 (Massachusetts)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 Gary Ira Portnay allows following entities to bill medicare on his behalf.
Entity NameNortheast Medical Practice Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235147760
PECOS PAC ID: 2365405024
Enrollment ID: O20050111000265
Entity NameBeth Israel Lahey Health Primary Care, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063873842
PECOS PAC ID: 7719291434
Enrollment ID: O20160517000441

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 Gary Ira Portnay 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 Gary Ira Portnay, MD
13 Bateson Drive,
Andover, MA 01810-3401

Ph: (781) 879-2061
Dr Gary Ira Portnay, MD
13 Bateson Drive,
Andover, MA 01810-3401

Ph: (781) 879-2061

Reviews and Comments


Internal Medicine Doctors in Andover, MA

Madhavi Challagulla, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 323 Lowell St, Andover, MA 01810
Phone: 978-783-5000    Fax: 978-313-8184
Phyllis Spieler, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 138 Haverhill St, Suite 102, Andover, MA 01810
Phone: 978-470-1902    Fax: 978-749-3605
Dr. Spyridon Kantas, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 63 Park Street, Andover, MA 01810
Phone: 978-409-1137    Fax: 978-409-1906
Paul N Lemaitre, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 138 Haverhill St, Suite 203, Andover, MA 01810
Phone: 978-475-7765    Fax: 978-662-2239
Alida Melisa Rosado Rodriguez, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 323 Lowell St, Andover, MA 01810
Phone: 978-783-5000    Fax: 978-313-8182
Constance L Williams, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Unicare- 200 Brickstone Square, Suite #101, Andover, MA 01810
Phone: 978-474-6816    
Dr. Chiochen Cheng, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 133 Bailey Rd, Andover, MA 01810
Phone: 978-886-3978    

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.