Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Accompany Medical Group of Massachusetts, P.C.

Internal Medicine Physician in Bethesda, MD · enumerated 2025 · authorized official Ellen Weinstein, General Counsel.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770396772

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Registry record

Entity type Organization (Type 2)

Legal business name Accompany Medical Group of Massachusetts, P.C.

Practice address 4550 Montgomery Ave Fl 9, Bethesda, MD, 20814

Phone (301) 375-0166

Enumeration date Jan 31, 2025

Last updated in NPPES Jan 31, 2025

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

103TA0400X Addiction (Substance Use Disorder) Psychologist Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Secondary

172V00000X Community Health Worker Other Service Providers Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Ellen Weinstein

Title General Counsel

Phone (301) 375-0166

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Accompany Medical Group of Massachusetts, P.C.?

Accompany Medical Group of Massachusetts, P.C. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-31.