Dr Ryan Eid, MD - Medicare Internal Medicine in Duxbury, MA

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Dr Ryan Eid, MD is a medicare enrolled "Internal Medicine - Allergy & Immunology" physician in Duxbury, Massachusetts. His current practice location is 40 Tremont St Ste 52, Duxbury, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 934-6200.

Dr Ryan Eid is licensed to practice in Massachusetts (license number 281713) 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 1215464540.

Contact Information

Dr Ryan Eid, MD
40 Tremont St Ste 52,
Duxbury, MA 02332-5316
(781) 934-6200
(781) 934-9118

Map and Direction




Physician's Profile

Full NameDr Ryan Eid
GenderMale
SpecialityInternal Medicine - Allergy & Immunology
Location40 Tremont St Ste 52, Duxbury, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1215464540
  • Provider Enumeration Date: 05/17/2017
  • Last Update Date: 01/28/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1557633435
  • Enrollment ID: I20230324001438

Medical Identifiers

Medical identifiers for Dr Ryan Eid such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215464540NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RA0201XInternal Medicine - Allergy & Immunology 281713 (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 Ryan Eid allows following entities to bill medicare on his behalf.
Entity NameHarbor Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124079561
PECOS PAC ID: 2466356209
Enrollment ID: O20040719000954
Entity NameSouth Shore Allergy & Asthma Specialists P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952361503
PECOS PAC ID: 6204854953
Enrollment ID: O20051110000664

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 Ryan Eid 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 Ryan Eid, MD
40 Tremont St Ste 52,
Duxbury, MA 02332-5316

Ph: (781) 934-6200		Dr Ryan Eid, MD
40 Tremont St Ste 52,
Duxbury, MA 02332-5316

Ph: (781) 934-6200

Reviews and Comments


Internal Medicine Doctors in Duxbury, MA

Mrs. Ulrike B Kohler, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 95 Tremont St, Duxbury, MA 02332
Phone: 781-934-0060    Fax: 781-934-7006
Dr. William Robert Caruso, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 8 Winthrop Ave, Po 1153, Duxbury, MA 02332
Phone: 781-361-0926    
Bryna J Mcconarty, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 95 Tremont St Ste 10, Duxbury, MA 02332
Phone: 781-934-0060    Fax: 781-643-4308

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.