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

Ms. Tanya M Mark, LPC

Mental Health Counselor in Saint Louis, MO · enumerated 2010.

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

National Provider Identifier

1548561046

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Registry record

Entity type Individual (Type 1)

Name Ms. Tanya M Mark

Credential LPC

Sex Female

Practice address Saint Louis, MO, 63132

Phone (314) 785-7274

Enumeration date Nov 15, 2010

Last updated in NPPES Dec 30, 2014

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 2010037457 (MO) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier	Type	State	Issuer
1548561046	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.

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Frequently asked questions

How do I verify Tanya Mark's NPI record?

Cross-check NPI 1548561046 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548561046 active?

Yes, as of the latest NPPES snapshot, NPI 1548561046 is active (record last updated 2014-12-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-30.