Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Loyd J Wollstadt, M.D.

Internal Medicine Physician in Mount Morris, IL · enumerated 2005 · practices at Board of Trustees of the University of Illinois.

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

National Provider Identifier

1356332498

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Registry record

Entity type Individual (Type 1)

Name Dr. Loyd J Wollstadt

Credential M.D.

Sex Male

Practice address 405 Charles St, University Primary Care Clinic Mt Morris, Mount Morris, IL, 61054

Phone (815) 734-6061

Fax (815) 734-9021

Enumeration date Oct 28, 2005

Last updated in NPPES Sep 3, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036050197 (IL) 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
036050197	Medicaid	IL	-
036050197	Other	IL	IL STATE LICENSE

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 is the NPI number for Loyd Wollstadt?

The National Provider Identifier (NPI) for Loyd Wollstadt is 1356332498, a Type 1 (individual) record in the CMS NPPES registry.

Where does Loyd Wollstadt practice?

The practice location on file with NPPES is in Mount Morris, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Board of Trustees of the University of Illinois Family Medicine Physician · Mt Morris, IL NPI 1033157755 Isaac Cha Pharmacotherapy Pharmacist · Mount Morris, IL NPI 1396878930

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-03.