Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Francis Grzywacz, M.D.

Cardiovascular Disease Physician in Doylestown, PA · enumerated 2007.

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

National Provider Identifier

1104037274

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Registry record

Entity type Individual (Type 1)

Name Mr. Francis Grzywacz

Credential M.D.

Sex Male

Practice address 599 W State St, Suite 200, Doylestown, PA, 18901

Phone (267) 893-6800

Fax (267) 893-6820

Enumeration date May 24, 2007

Last updated in NPPES Apr 3, 2019

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD4204878 (PA) Secondary

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License MD420478 (PA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD420478 (PA) 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
1483295	Other	PA	PA BLUE SHIELD
1699984	Other	PA	AETNA
2173580000	Other	PA	IBC
0019573480005	Medicaid	PA	-

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.

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Frequently asked questions

How do I verify Francis Grzywacz's NPI record?

Cross-check NPI 1104037274 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104037274 active?

Yes, as of the latest NPPES snapshot, NPI 1104037274 is active (record last updated 2019-04-03).

Other providers at this practice address

Browse all →

Robert Hale Gastroenterology Physician · Doylestown, PA NPI 1992704431 David Smith Cardiovascular Disease Physician · Doylestown, PA NPI 1659370104 Joseph Mcgarvey Cardiovascular Disease Physician · Doylestown, PA NPI 1235138835 James Guarino Cardiovascular Disease Physician · Doylestown, PA NPI 1679572713 Robert Sangrigoli Clinical Cardiac Electrophysiology Physician · Doylestown, PA NPI 1619976768 Rajnish Saini Specialist · Doylestown, PA NPI 1366441313 Brett Harrison Surgery Physician · Doylestown, PA NPI 1710987367 Bruce Derrick Surgery Physician · Doylestown, PA NPI 1831199405

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-03.