GRAND LAKE MENTAL HEALTH CENTER INC
NPI 1659176238
Clinic/Center - Mental Health (Including Community Mental Health Center) in Skiatook, OK

Active since February 17, 2025
201 S HOMINY AVE STE 201, SKIATOOK, OK 74070(918) 273-1841(918) 273-1843 Get Directions Write a Review

NPPES record last updated: February 17, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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 1659176238) is a healthcare organization registered as a mental health (including community mental health center) in Skiatook, Oklahoma and active in the NPI registry since February 2025. The organization lists Joshua Cantwell, Ceo, as its authorized official.

NPPES Registry Identity

NPI1659176238
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameGRAND LAKE MENTAL HEALTH CENTER INC
Location Address201 S HOMINY AVE STE 201Skiatook, OK 74070-3975
Mailing Address114 W Delaware AveNowata, OK 74048-2601 · (918) 273-1841
Fax(918) 273-1843
Organization SubpartNo
Authorized OfficialJoshua CantwellCeo · (918) 273-1841
Enumeration DateFebruary 17, 2025
NPPES CertifiedFebruary 17, 2025
✔ NPI 1659176238 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
201 S HOMINY AVE STE 201, Skiatook, OK 74070

Accepted 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, 1 practice 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
Mental Health Counselor
NPI 1285294421
9800 N 100TH EAST AVE
Owasso, OK 74055
(918) 609-3006
✔ PECOS10 mi
Mental Health Counselor
NPI 1588900492
2442 MOHAWK BLVD
Tulsa, OK 74110
(918) 430-0975
✔ PECOS12 mi
Marriage and Family Therapist
NPI 1487296133
202 E 2ND AVE STE 112
Owasso, OK 74055
(918) 205-4148
✔ PECOS12 mi
Mental Health Counselor
NPI 1467754218
10310 N 138TH EAST AVE
Owasso, OK 74055
(918) 237-6393
✔ PECOS12 mi
Clinical Social Worker
NPI 1376046391
11312 N 147TH EAST PL
Owasso, OK 74055
(559) 289-2520
✔ PECOS12 mi
Clinical Social Worker
NPI 1720558430
102 N DENVER AVE
Tulsa, OK 74103
(918) 582-1200
✔ PECOS✔ Accepts Medicare15 mi
Clinical Social Worker
NPI 1346643681
808 S PEORIA AVE
Tulsa, OK 74120
(918) 587-9471
✔ PECOS✔ Accepts Medicare15 mi
Clinical Social Worker
NPI 1023245800
1055 S HOUSTON AVE
Tulsa, OK 74127
(918) 921-3200
✔ PECOS15 mi
Mental Health Counselor
NPI 1700321908
401 W. MAIN ST.
Barnsdall, OK 74002
(918) 847-3527
✔ PECOS16 mi
Clinical Social Worker
NPI 1912318072
401 W. MAIN ST.
Barnsdall, OK 74002
(918) 521-6020
✔ PECOS16 mi
Mental Health Counselor
NPI 1134559792
401 W MAIN ST
Barnsdall, OK 74002
(918) 418-6155
✔ PECOS16 mi
Mental Health Counselor
NPI 1093386112
401 E BROADWAY CT STE E
Sand Springs, OK 74063
(918) 245-5565
✔ PECOS16 mi
Nurse Practitioner
NPI 1801691977
6128 E 38TH ST
Tulsa, OK 74135
(844) 458-2100
✔ PECOS✔ Accepts Medicare19 mi
Marriage and Family Therapist
NPI 1265653083
6128 E 38TH ST
Tulsa, OK 74135
(800) 722-3611
✔ PECOS19 mi
Psychiatry
NPI 1679544340
6128 E 38TH ST
Tulsa, OK 74135
(918) 342-0770
✔ PECOS✔ Accepts Medicare19 mi
Nurse Practitioner
NPI 1912796038
6333 E SKELLY DR
Tulsa, OK 74135
(918) 822-0443
✔ PECOS19 mi
Psychiatry
NPI 1003928334
4111 S DARLINGTON AVE SUITE 425
Tulsa, OK 74135
(866) 285-4381
✔ PECOS✔ Accepts Medicare19 mi
Psychiatry
NPI 1841384021
17599 S HIGHWAY 88
Claremore, OK 74017
(918) 342-9530
✔ PECOS✔ Accepts Medicare22 mi
Nurse Practitioner
NPI 1841575230
17599 S HIGHWAY 88
Claremore, OK 74017
(918) 342-8161
✔ PECOS✔ Accepts Medicare22 mi
Marriage and Family Therapist
NPI 1417489907
12011 W. LOWRY ROAD
Claremore, OK 74017
(918) 704-7386
✔ PECOS23 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 1659176238. It was assigned to this organization in the NPPES registry on February 17, 2025.

Where is Grand Lake Mental Health Center Inc located?

Grand Lake Mental Health Center Inc is located at 201 S Hominy Ave Ste 201, Skiatook, OK 74070. The listed phone number is (918) 273-1841.

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.

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, 1 practice 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 February 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.