NPI Portal NPI Lookup & Verification

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

John Howard Perryman, M.D.

Pediatrics Physician in St Charles, IL · enumerated 2006.

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

National Provider Identifier

1235242496

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Registry record

Entity type Individual (Type 1)
Name John Howard Perryman
Credential M.D.
Sex Male
Practice address St Charles, IL, 60174
Phone (630) 584-2340
Fax (630) 584-2825
Enumeration date Aug 15, 2006
Last updated in NPPES Dec 19, 2011

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 036-081300 (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
036081300 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.

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Frequently asked questions

How do I verify John Perryman's NPI record?
Cross-check NPI 1235242496 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235242496 active?
Yes, as of the latest NPPES snapshot, NPI 1235242496 is active (record last updated 2011-12-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-19.