NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Adrian Douglas Feinerman, MD

Specialist in Steeleville, IL · enumerated 2006 · practices at F Like Frank, PC.

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

National Provider Identifier

1568484590

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Registry record

Entity type Individual (Type 1)
Name Adrian Douglas Feinerman
Credential MD
Sex Male
Practice address Steeleville, IL, 62288
Fax (618) 965-9508
Enumeration date Jul 25, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers 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
2286273 Other IL FIRST HEALTH
105069 Other IL HEALTH ALLIANCE
7932009 Other IL BCBS

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 specialty is Adrian Feinerman?
Adrian Feinerman is registered in NPPES with the primary taxonomy of Specialist. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.