Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Frederick Fiesseler, D.O.

Emergency Medicine Physician in Morristown, NJ · enumerated 2006.

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

National Provider Identifier

1033177415

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Registry record

Entity type Individual (Type 1)

Name Frederick Fiesseler

Credential D.O.

Sex Male

Practice address 100 Madison Ave, Morristown, NJ, 07960

Phone (800) 290-5309

Fax (803) 434-4354

Enumeration date May 3, 2006

Last updated in NPPES Oct 18, 2012

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MB71344 (NJ) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
8363706	Medicaid	NJ	-

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 1033177415 active?

Yes, as of the latest NPPES snapshot, NPI 1033177415 is active (record last updated 2012-10-18).

How do I verify Frederick Fiesseler's NPI record?

Cross-check NPI 1033177415 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Tricia Johnson Surgical Physician Assistant · Morristown, NJ NPI 1003819384 Kevin Mcsherry Pediatrics Physician · Morristown, NJ NPI 1336145986 Mid-Atlantic Surgical Assoc. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Morristown, NJ NPI 1619977741 Kathleen Pearl Adult Health Nurse Practitioner · Morristown, NJ NPI 1851392344 Laura Pesce Nurse Practitioner · Morristown, NJ NPI 1215938386 James Slater Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Morristown, NJ NPI 1841292232 Christopher Magovern Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Morristown, NJ NPI 1043212434 John Brown Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Morristown, NJ NPI 1164424529

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-18.