Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katharine W Mauer, MD

Allergy & Immunology Physician in Troy, MI · enumerated 2005.

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

National Provider Identifier

1336123793

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Registry record

Entity type Individual (Type 1)

Name Dr. Katharine W Mauer

Credential MD

Sex Female

Practice address 1350 Kirts Blvd, Ste 140, Troy, MI, 48084

Phone (248) 269-8529

Fax (248) 269-8566

Enumeration date Nov 30, 2005

Last updated in NPPES Dec 20, 2011

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 4301046375 (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
2848731	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

Is NPI 1336123793 active?

Yes, as of the latest NPPES snapshot, NPI 1336123793 is active (record last updated 2011-12-20).

How do I verify Katharine Mauer's NPI record?

Cross-check NPI 1336123793 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Lori Fedoronko Dermatology Physician · Troy, MI NPI 1548250855 Michael Hubers Orthopaedic Surgery Physician · Troy, MI NPI 1942290168 Zachary Endress Orthopaedic Surgery Physician · Troy, MI NPI 1528058740 Nicholas Dutcheshen Orthopaedic Surgery Physician · Troy, MI NPI 1568420305 Asthma and Allergy Specialists, PC Specialist · Troy, MI NPI 1487713491 Lori Fedoronko M D P C Procedural Dermatology Physician · Troy, MI NPI 1265633416 Donald M Knapke MD PC Adult Reconstructive Orthopaedic Surgery Physician · Troy, MI NPI 1003099136 Desaree Carwile Occupational Therapist · Troy, MI NPI 1194967737

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-20.