Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Peter Joseph Maceroni Jr., D.O.
Neurology Physician in Macomb, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124221668
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Registry record
Entity type Individual (Type 1)
Name Dr. Peter Joseph Maceroni Jr.
Credential D.O.
Sex Male
Practice address 46591 Romeo Plank Rd Ste 220, Macomb, MI, 48044
Phone (586) 226-6170
Fax (586) 226-6168
Enumeration date Jun 11, 2007
Last updated in NPPES Oct 10, 2019
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 5101017204 (MI) Primary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 34.011978 (OH) Secondary
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
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.
Frequently asked questions
What specialty is Peter Maceroni?
Peter Maceroni is registered in NPPES with the primary taxonomy of Neurology 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-10.