Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Richard M Zweig, MD

Internal Medicine Physician in Bristol, CT · enumerated 2005 · practices at Gab Prescriptions Inc.

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

National Provider Identifier

1477548451

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Registry record

Entity type Individual (Type 1)

Name Richard M Zweig

Credential MD

Sex Male

Practice address 25 Collins Rd, Bristol, CT, 06010

Phone (860) 314-6000

Fax (860) 314-6005

Enumeration date Sep 15, 2005

Last updated in NPPES Jun 2, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 022652 (CT) Primary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 022652 (CT) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
001226521	Medicaid	CT	-

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

Is NPI 1477548451 active?

Yes, as of the latest NPPES snapshot, NPI 1477548451 is active (record last updated 2026-06-02).

How do I verify Richard Zweig's NPI record?

Cross-check NPI 1477548451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Allen Currier Diagnostic Radiology Physician · Bristol, CT NPI 1760468904 Gab Prescriptions Inc Community/Retail Pharmacy · Bristol, CT NPI 1033141528 Carlos Badiola Diagnostic Radiology Physician · Bristol, CT NPI 1346267127 Folco Scappaticci Diagnostic Radiology Physician · Bristol, CT NPI 1962429746 David Kaye Diagnostic Radiology Physician · Bristol, CT NPI 1801806575 Christopher Leary Diagnostic Radiology Physician · Bristol, CT NPI 1710997481 Dennis Ferguson Diagnostic Radiology Physician · Bristol, CT NPI 1083624761 Howard Selinger Family Medicine Physician · Bristol, CT NPI 1114937141

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-02.