Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Thomas Critchlow, M. D

Specialist in Cape Girardeau, MO · enumerated 2006.

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

National Provider Identifier

1326108945

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Registry record

Entity type Individual (Type 1)

Name Dr. John Thomas Critchlow

Credential M. D

Sex Male

Practice address 3065 William St, Suite 105, Cape Girardeau, MO, 63703

Phone (573) 651-1882

Fax (573) 334-5302

Enumeration date Dec 12, 2006

Last updated in NPPES Jun 20, 2012

Taxonomy & licenses

174400000X Specialist Other Service Providers · License R6605 (MO) 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
201100237	Medicaid	MO	-

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

Where does John Critchlow practice?

The practice location on file with NPPES is in Cape Girardeau, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Critchlow?

The National Provider Identifier (NPI) for John Critchlow is 1326108945, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-20.