Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert M. Trepel, M.D.

Neurology with Special Qualifications in Child Neurology Physician in Stony Brook, NY · enumerated 2006.

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

National Provider Identifier

1841230042

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Registry record

Entity type Individual (Type 1)

Name Robert M. Trepel

Credential M.D.

Sex Male

Practice address 101 Nicolls Rd, Stony Brook, NY, 11794

Phone (631) 444-2599

Enumeration date Jun 7, 2006

Last updated in NPPES Nov 30, 2023

Taxonomy & licenses

2084N0402X Neurology with Special Qualifications in Child Neurology Physician Allopathic & Osteopathic Physicians · License 157421 (NY) 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
A400042621	Other	NY	MEDICARE PTAN
01020557	Medicaid	NY	-

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 is the NPI number for Robert Trepel?

The National Provider Identifier (NPI) for Robert Trepel is 1841230042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Trepel practice?

The practice location on file with NPPES is in Stony Brook, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-30.