Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jack Trebelhorn, MD

Urology Physician in Saint Clair Shores, MI · enumerated 2016 · practices at Michigan Institute of Urology Laboratory.

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

National Provider Identifier

1619331998

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Registry record

Entity type Individual (Type 1)

Name Dr. Jack Trebelhorn

Credential MD

Sex Male

Practice address 20952 E 12 Mile Rd Ste 200, Saint Clair Shores, MI, 48081

Phone (586) 771-4820

Fax (303) 485-3377

Enumeration date Apr 12, 2016

Last updated in NPPES Jun 9, 2022

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License DR.0067578 (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
1619331998	Medicaid	MI	-

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

What specialty is Jack Trebelhorn?

Jack Trebelhorn is registered in NPPES with the primary taxonomy of Urology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-09.