Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arnold Edward Pfahnl, MD, PHD

Clinical Cardiac Electrophysiology Physician in Greeley, CO · enumerated 2006.

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

National Provider Identifier

1205894284

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Registry record

Entity type Individual (Type 1)

Name Dr. Arnold Edward Pfahnl

Credential MD, PHD

Sex Male

Practice address 1800 15th St, Suite 310, Greeley, CO, 80631

Phone (970) 392-0900

Fax (970) 506-3796

Enumeration date May 1, 2006

Last updated in NPPES Apr 6, 2012

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 053361 (GA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License ME83736 (FL) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 46328 (CO) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 46328 (CO) 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
41404521	Medicaid	CO	-

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

What specialty is Arnold Pfahnl?

Arnold Pfahnl is registered in NPPES with the primary taxonomy of Clinical Cardiac Electrophysiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Anne Lease Family Nurse Practitioner · Greeley, CO NPI 1205821162 Susan Carter Gynecology Physician · Greeley, CO NPI 1093793119 Phillip Abston Interventional Pain Medicine Physician · Greeley, CO NPI 1013997675 Lana Mccallum Nurse Practitioner · Greeley, CO NPI 1922079482 Kenneth Richards Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Greeley, CO NPI 1083689376 Robert Vickerman Surgery Physician · Greeley, CO NPI 1023085511 Cynthia Gryboski Interventional Cardiology Physician · Greeley, CO NPI 1548223316 Paul Hurst Cardiovascular Disease Physician · Greeley, CO NPI 1730143033

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-06.