NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald J Feldmann, MD

Family Medicine Physician in Sycamore, IL · enumerated 2006 · practices at Prairie Health Care, Ltd.

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

National Provider Identifier

1508894312

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ronald J Feldmann
Credential MD
Sex Male
Practice address 954 West State Street, Sycamore, IL, 60118
Phone (815) 895-9144
Fax (815) 899-4234
Enumeration date Jun 29, 2006
Last updated in NPPES Oct 28, 2009

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036064074 (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
036064074 Medicaid IL -

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 Ronald Feldmann?
The National Provider Identifier (NPI) for Ronald Feldmann is 1508894312, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ronald Feldmann practice?
The practice location on file with NPPES is in Sycamore, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-28.