1. Home
  2. Directory
  3. Oklahoma
  4. Tulsa
  5. Community Behavioral Health
  6. NPI Profile

GRAND LAKE MENTAL HEALTH CENTER, INC.
NPI 1356048656
Community/Behavioral Health in Tulsa, OK

Active since February 08, 2023
6111 E SKELLY DR, TULSA, OK 74135(918) 664-4224(918) 663-0303 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 25, 2025, Feb 8, 2023 (2 updates tracked since 2023).

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 1356048656), doing business as Grand Mental Health, is a healthcare organization registered as a community/behavioral health in Tulsa, Oklahoma and active in the NPI registry since February 2023. The organization lists Joshua Cantwell, Ceo, as its authorized official.

NPPES Registry Identity

NPI1356048656
Entity TypeOrganization
Primary Taxonomy251S00000X
Legal Business NameGRAND LAKE MENTAL HEALTH CENTER, INC.
Location Address6111 E SKELLY DRTulsa, OK 74135-6100
Mailing Address6111 E Skelly DrTulsa, OK 74135-6100 · (918) 664-4224 · Fax (918) 663-0303
Phone(918) 664-4224
Fax(918) 663-0303
Organization SubpartNo
Authorized OfficialJoshua CantwellCeo · (918) 273-1841
Enumeration DateFebruary 8, 2023
Last NPPES UpdateNovember 25, 20252 updates tracked since enumeration
NPPES CertifiedNovember 25, 2025
✔ NPI 1356048656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCommunity/Behavioral HealthAgencies
Taxonomy Code251S00000X
Definition
A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
Also ListedSubstance Abuse Rehabilitation FacilityTaxonomy 324500000X
6111 E SKELLY DR, Tulsa, OK 74135
Open in Google Maps ↗

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 ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grand Lake Mental Health Center, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

333

Medicare enrollment records show 333 clinicians reassign Medicare billing to Grand Lake Mental Health Center, Inc., which bills Medicare for the services they deliver. Of these, 3 practice at this address and 43 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 6

Mental Health Counselor187
Clinical Social Worker118
Marriage and Family Therapist15
Nurse Practitioner7
Psychiatry5
Clinical Psychologist1

Nearest to this location (20)

See all 333
Molly Hey
Mental Health Counselor
NPI 1043585367
6111 E SKELLY DR
Tulsa, OK 74135
(918) 924-8435
✔ PECOS✔ Accepts MedicareSame address
Kimberly Hill, MSW
Clinical Social Worker
NPI 1962623066
6111 E SKELLY DR
Tulsa, OK 74135
(844) 458-2100
✔ PECOSSame address
Ashley Nguyen, MHR, LPC
Mental Health Counselor
NPI 1376053017
6111 E SKELLY DR
Tulsa, OK 74135
(539) 235-9001
✔ PECOSSame address
Aaron Coffman
Mental Health Counselor
NPI 1083170302
6333 E SKELLY DR
Tulsa, OK 74135
(918) 605-4170
✔ PECOS0.1 mi
Shelley Waggoner
Mental Health Counselor
NPI 1417299447
6333 E SKELLY DR
Tulsa, OK 74135
(918) 633-2442
✔ PECOS✔ Accepts Medicare0.1 mi
Ashley Ware, APRN
Nurse Practitioner
NPI 1912796038
6333 E SKELLY DR
Tulsa, OK 74135
(918) 822-0443
✔ PECOS0.1 mi
Joshua Branham, APRN
Nurse Practitioner
NPI 1801691977
6128 E 38TH ST
Tulsa, OK 74135
(844) 458-2100
✔ PECOS✔ Accepts Medicare0.1 mi
Matthew Crawford, LPC
Mental Health Counselor
NPI 1386932036
6128 E 38TH ST
Tulsa, OK 74135
(918) 779-7144
✔ PECOS0.1 mi
Donna Holden
Marriage and Family Therapist
NPI 1265653083
6128 E 38TH ST
Tulsa, OK 74135
(800) 722-3611
✔ PECOS0.1 mi
Khalil Saliba, MD
Psychiatry
NPI 1679544340
6128 E 38TH ST
Tulsa, OK 74135
(918) 342-0770
✔ PECOS✔ Accepts Medicare0.1 mi
Saralyn Williams
Mental Health Counselor
NPI 1114420098
6128 E 38TH ST
Tulsa, OK 74135
(918) 664-4224
✔ PECOS0.1 mi
Casey Fields
Clinical Social Worker
NPI 1043910888
6128 E 38TH ST
Tulsa, OK 74135
(918) 519-8738
✔ PECOS0.1 mi
Lauren Gouker
Clinical Social Worker
NPI 1922630698
6128 E 38TH ST
Tulsa, OK 74135
(918) 779-7144
✔ PECOS✔ Accepts Medicare0.1 mi
Crystal Isaacs
Mental Health Counselor
NPI 1730536897
6128 E 38TH ST
Tulsa, OK 74135
(918) 779-7144
✔ PECOS0.1 mi
David Mcelwain, M.D.
Psychiatry
NPI 1003928334
4111 S DARLINGTON AVE SUITE 425
Tulsa, OK 74135
(866) 285-4381
✔ PECOS✔ Accepts Medicare0.5 mi
Jaime Flowers
Mental Health Counselor
NPI 1225250392
4103 S YALE AVE STE B
Tulsa, OK 74135
(918) 382-7300
✔ PECOS0.8 mi
Elizabeth Hall, LCSW
Clinical Social Worker
NPI 1275284465
5314 S YALE AVE STE 600
Tulsa, OK 74135
(918) 894-5115
✔ PECOS✔ Accepts Medicare1.7 mi
Dawn Colbert-Dixon
Clinical Social Worker
NPI 1386193167
4636 S HARVARD AVE
Tulsa, OK 74135
(918) 382-7300
✔ PECOS✔ Accepts Medicare2.0 mi
Cynthia Moser, MHR
Mental Health Counselor
NPI 1710396536
4636 S HARVARD AVE
Tulsa, OK 74135
(918) 382-7300
✔ PECOS2.0 mi
James Garner
Mental Health Counselor
NPI 1124663224
4815 S HARVARD AVE STE 420
Tulsa, OK 74135
(918) 406-0756
✔ PECOS✔ Accepts Medicare2.0 mi
See all 333 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 1356048656. It was assigned to this organization in the NPPES registry on February 8, 2023. 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 6111 E Skelly Dr, Tulsa, OK 74135. The listed phone number is (918) 664-4224.

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

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

Is Grand Lake Mental Health Center, Inc. enrolled in Medicare?

Yes. Grand Lake Mental Health Center, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Grand Lake Mental Health Center, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 333 clinicians in 6 Medicare specialties reassign their Medicare billing to Grand Lake Mental Health Center, Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Mental Health Counselor (187), Clinical Social Worker (118) and Marriage and Family Therapist (15). Of these, 3 practice at this address and 43 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.