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

GRAND LAKE MENTAL HEALTH CENTER, INC.
NPI 1821638768
Clinic/Center - Mental Health (Including Community Mental Health Center) in Stillwater, OK

Active since January 08, 2020
998 E KNOTTS AVE, STILLWATER, OK 74075(844) 458-2100 Get Directions Write a Review

NPPES record last updated: October 14, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 14, 2026, Dec 4, 2024, Jan 8, 2020 (3 updates tracked since 2020).

About Grand Lake Mental Health Center, Inc. NPPES

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

GRAND LAKE MENTAL HEALTH CENTER, INC. (NPI 1821638768), doing business as Grand Mental Health, is a healthcare organization registered as a mental health (including community mental health center) in Stillwater, Oklahoma and active in the NPI registry since January 2020. The organization lists Larry Smith, Ceo, as its authorized official.

NPPES Registry Identity

NPI1821638768
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameGRAND LAKE MENTAL HEALTH CENTER, INC.
Location Address998 E KNOTTS AVEStillwater, OK 74075-3023
Mailing Address114 W Delaware AveNowata, OK 74048-2601 · (918) 273-1841 · Fax (918) 273-1843
Phone(844) 458-2100
Organization SubpartNo
Authorized OfficialLarry SmithCeo · (918) 273-1841
Enumeration DateJanuary 8, 2020
Last NPPES UpdateOctober 14, 20263 updates tracked since enumeration
NPPES CertifiedOctober 14, 2026
✔ NPI 1821638768 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities
Taxonomy Code261QM0801X
998 E KNOTTS AVE, Stillwater, OK 74075
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Other Names 1

Doing Business AsGrand Mental Health

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KRISTEN SAMPLE
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (844) 458-2100
ALLYSON RAQUEL BLOSSER
Social Worker (Clinical)
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (405) 372-2202
LAURA MARIE DELAUNE
Case Manager/Care Coordinator
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (844) 458-2100
KENDRA WALLS
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (539) 240-0907
BRANDEE SUZANNE MORGAN
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (844) 458-2100
BRIAN SHAKLEE
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (800) 722-3611
MR. KENNETH JOE ROSS SHOOP
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (844) 458-2100
NEKIA BROWN
Peer Specialist
998 E KNOTTS AVE
STILLWATER, OK 74075
Payne County (844) 458-2100

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 Grand Lake Mental Health Center, Inc.'s NPI number?

The NPI number for Grand Lake Mental Health Center, Inc. is 1821638768. It was assigned to this organization in the NPPES registry on January 8, 2020. The provider is doing business as GRAND Mental Health.

Where is Grand Lake Mental Health Center, Inc. located?

Grand Lake Mental Health Center, Inc. is located at 998 E Knotts Ave, Stillwater, OK 74075. The listed phone number is (844) 458-2100.

What is Grand Lake Mental Health Center, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

What insurance does Grand Lake Mental Health Center, Inc. accept?

Health plans from Blue Cross and Blue Shield of Oklahoma list Grand Lake Mental Health Center, Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Grand Lake Mental Health Center, Inc. was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.