Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SHELLY LAVONNE BEST LCSW, MFT, CRTC, NPT
NPI 1003218710
Psychologist - Clinical in Lake St Louis, MO

Q: What is Shelly Best's NPI number?

The NPI number for Shelly Best is 1003218710. It was assigned to this individual provider in the NPPES registry on September 24, 2014. The provider is also known as Dr. Shelly Lavonne Best Mft, Crtc, Npt, Sitt.

Q: What is Shelly Best's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Shelly Best was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 24, 2014

8651 STATE ROUTE N, #44, LAKE ST LOUIS, MO 63367(314) 485-7399 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 6, 2026, May 19, 2026, Jun 7, 2025 and 1 more (4 updates tracked since 2022).

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About Dr. Shelly Lavonne Best Lcsw, Mft, Crtc, Npt NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SHELLY LAVONNE BEST LCSW, MFT, CRTC, NPT (NPI 1003218710) is an individual clinical provider in Lake St Louis, Missouri, licensed in Missouri (202000145) and active in the NPI registry since September 2014.

NPPES Registry Identity

NPI1003218710

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. SHELLY LAVONNE BESTCredential: LCSW, MFT, CRTC, NPT

Location Address8651 STATE ROUTE N, #44Lake St Louis, MO 63367

Mailing Address8651 State Route N, #44Lake St Louis, MO 63367 · (314) 485-7399

Phone(314) 485-7399

Sole ProprietorYes

Enumeration DateSeptember 24, 2014

Last NPPES UpdateJuly 6, 20264 updates tracked since enumeration

NPPES CertifiedJuly 6, 2026

✔ NPI 1003218710 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in MO · 202000145

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedCounselor · PastoralTaxonomy 101YP1600X · License 472087213 (MO)

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 472087213 (MO)

Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License 202000145 (MO)

8651 STATE ROUTE N, Lake St Louis, MO 63367

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Other Names 1

Professional Name (2)Dr. Shelly Lavonne Best Mft, Crtc, Npt, Sitt

Other Identifiers 17

Medicaid1003218710MO

Other472087213MO · Ubh-united Behavioral Health-rios (87726)

Other472087213MO · Managed Health Network-mhn (22771)

Other472087213MO · Access Behavioral Care (coacc)

Other472087213MO · United Healthcare Military And Veterans (99726)

Other472087213MO · Capital District Physicians Health Plan (cdphp) (sx065)

Other472087213MO · Unicare (80314)

Other472087213MO · Coventry Healthcare Of Missouri 25133

Other472087213MO · Cigna Private (62308)

Other472087213MO · Blue Cross Blue Shield Of Mo-anthem (00241)

Other472087213MO · Aarp-medicare Supplement-united Healthcare Insurance (36273

Other472087213MO · Cigna Behavioral Health (sx071) (cigbh)

Other472087213MO · Anthem Omhs (37331)

Medicaid472087213MO

Other472087213MO · Medicaid Missouri

Other472087213MO · Humana Choice Care Ppo (61101)

Other472087213MO · Tricare (ch002)

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shelly Best's NPI number?

The NPI number for Shelly Best is 1003218710. It was assigned to this individual provider in the NPPES registry on September 24, 2014. The provider is also known as Dr. Shelly Lavonne Best Mft, Crtc, Npt, Sitt.

Where is Shelly Best located?

Shelly Best practices at 8651 State Route N #44, Lake St Louis, MO 63367. The listed phone number is (314) 485-7399.

What is Shelly Best's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Shelly Best was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.