Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marion S Grabowy, MD

Anesthesiology Physician in Branford, CT · enumerated 2005.

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

National Provider Identifier

1841291853

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Registry record

Entity type Individual (Type 1)

Name Marion S Grabowy

Credential MD

Sex Female

Practice address 84 N Main St, Branford, CT, 06405

Phone (203) 483-2024

Fax (203) 483-2520

Enumeration date Aug 2, 2005

Last updated in NPPES Jun 24, 2013

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 028752 (CT) Primary

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
050000703	Other	CT	MEDICARE

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 1841291853 active?

Yes, as of the latest NPPES snapshot, NPI 1841291853 is active (record last updated 2013-06-24).

How do I verify Marion Grabowy's NPI record?

Cross-check NPI 1841291853 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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Francisco Rivera Ferrer Anesthesiology Physician · Branford, CT NPI 1225039233 Jeffrey Delott Foot & Ankle Surgery Podiatrist · Branford, CT NPI 1194712349 Peter Deluca Pediatric Orthopaedic Surgery Physician · Branford, CT NPI 1649267899 John Kelley Sports Medicine (Orthopaedic Surgery) Physician · Branford, CT NPI 1821085085 John Mccallum Orthopaedic Surgery Physician · Branford, CT NPI 1447247606 Thomas Moran Orthopaedic Surgery Physician · Branford, CT NPI 1891782058 Philip Minotti Adult Reconstructive Orthopaedic Surgery Physician · Branford, CT NPI 1346237500 John Beiner Orthopaedic Surgery of the Spine Physician · Branford, CT NPI 1770570921

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-24.