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

Charles Dean Blackburn, FNP-BC

Family Nurse Practitioner in Saint Clair, MO · enumerated 2016 · practices at Patients First Health Care LLC.

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

National Provider Identifier

1821449679

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Registry record

Entity type Individual (Type 1)

Name Charles Dean Blackburn

Credential FNP-BC

Sex Male

Practice address Saint Clair, MO, 63077

Phone (636) 629-3300

Fax (636) 629-7377

Enumeration date Jun 23, 2016

Last updated in NPPES Sep 25, 2024

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2016019132 (MO) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71006846A (IN) Primary

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 1821449679 active?

Yes, as of the latest NPPES snapshot, NPI 1821449679 is active (record last updated 2024-09-25).

How do I verify Charles Blackburn's NPI record?

Cross-check NPI 1821449679 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

Browse all →

Kirk Brockman Family Medicine Physician · St. Clair, MO NPI 1235139221 Patrick Smith Family Medicine Physician · Saint Clair, MO NPI 1093715096 Patients First Health Care LLC Family Medicine Physician · Saint Clair, MO NPI 1568627164 Patrick Rose Family Medicine Physician · Saint Clair, MO NPI 1811208341 Jessica Freiberger Family Nurse Practitioner · Saint Clair, MO NPI 1568814234 Rebekah Helmig Family Medicine Physician · Saint Clair, MO NPI 1851803159 Rose Glastetter Family Medicine Physician · Saint Clair, MO NPI 1417440041 Leah Miles Family Nurse Practitioner · Saint Clair, MO NPI 1922574524

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.