NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Rontal, MD

Otolaryngology Physician in Royal Oak, MI · enumerated 2006.

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

National Provider Identifier

1184688483

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Michael Rontal
Credential MD
Sex Male
Practice address 30701 Woodward Ave Ste 200, Royal Oak, MI, 48073
Phone (248) 737-4030
Fax (248) 307-7873
Enumeration date Apr 13, 2006
Last updated in NPPES Feb 3, 2021

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 4301027047 (MI) 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
2650022 Medicaid MI -
CI0239 Other MI RAILROAD MEDICARE

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

Where does Michael Rontal practice?
The practice location on file with NPPES is in Royal Oak, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Rontal?
The National Provider Identifier (NPI) for Michael Rontal is 1184688483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-03.