NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allergy Clinic of Warren PC

Allergy & Immunology Physician in Warren, MI · enumerated 2007 · authorized official Mark Zacks, Owner.

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

National Provider Identifier

1750599569

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Allergy Clinic of Warren PC
Practice address 28573 Schoenherr Rd, Warren, MI, 48088
Fax (586) 558-9402
Enumeration date May 18, 2007
Last updated in NPPES Apr 10, 2013

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License MZ035093 (MI) Primary

Authorized official

Name Mark Zacks
Title Owner

Other identifiers

Identifier Type State Issuer
0501676 Other MI BCBS
103944 Other MI PREFERRED CHOICES
103515 Other MI GREAT LAKES
1162941 Other MI HEALTH PLUS
1787391 Medicaid MI -
84180 Other MI TOTAL HEALTH
0501676 Other MI BLUE CARE NETWORK
B45174 Other MI HAP

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-04-10. Verify at npiregistry.cms.hhs.gov.
Where is Allergy Clinic of Warren PC located?
The practice location on file with NPPES is in Warren, MI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-10.