NORTHEASTERN HEALTH SYSTEM
NPI 1619031465
Psychiatric Unit in Tahlequah, OK

Active since December 19, 2006
1400 E DOWNING ST, TAHLEQUAH, OK 74464(918) 456-0641 Get Directions Write a Review

NPPES record last updated: April 6, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Northeastern Health System NPPES

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

NORTHEASTERN HEALTH SYSTEM (NPI 1619031465), doing business as Tahlequah Hospital Authority, is a healthcare organization registered as a psychiatric unit in Tahlequah, Oklahoma and active in the NPI registry since December 2006. The organization lists Brian Woodliff, Ceo, as its authorized official.

NPPES Registry Identity

NPI1619031465
Entity TypeOrganization
Primary Taxonomy273R00000X
Legal Business NameNORTHEASTERN HEALTH SYSTEM
Location Address1400 E DOWNING STTahlequah, OK 74464-3324
Mailing Address1400 E Downing St, Po Box 1008Tahlequah, OK 74464-3324 · (918) 456-0641
Organization SubpartNo
Authorized OfficialBrian WoodliffCeo · (918) 456-0641
Enumeration DateDecember 19, 2006
Last NPPES UpdateApril 6, 2026
NPPES CertifiedApril 6, 2026
✔ NPI 1619031465 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatric UnitHospital Units
Taxonomy Code273R00000X
License✔ Licensed in OK · 2178
Definition
In general, a distinct unit of a hospital that provides acute or long-term care to emotionally disturbed patients, including patients admitted for diagnosis and those admitted for treatment of psychiatric problems on the basis of physicians' orders and approved nursing care plans. Long-term care may include intensive supervision to the chronically mentally ill, mentally disordered or other mentally incompetent persons; (2) For Medicare, a distinct part of a general acute care hospital admitting only patients whose admission to the unit is required for active treatment, whose treatment is of an intensity that can be provided only in an inpatient hospital setting, and whose condition is described by a psychiatric principal diagnosis contained in the Third Edition of the American Psychiatric Association Diagnostic and Statistical Manual or in Chapter 5 (Mental Disorders) of the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM). The unit must furnish, through the use of qualified personnel, psychological services, social work services, psychiatric nursing, occupational therapy, and recreational therapy. The unit must maintain medical records that permit determination of the degree and intensity of treatment provided to individuals who are furnished services in the unit; the unit must meet special staff requirements in that the unit must have adequate numbers of qualified professional and supportive staff to evaluate inpatients, formulate written, individualized, comprehensive treatment plans, provide active treatment measures and engage in discharge planning.
1400 E DOWNING ST, Tahlequah, OK 74464

Other Names 1

Former Legal Business NameTahlequah Hospital Authority

Other Identifiers 1

Medicaid100700680AOK

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Northeastern Health System is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

157

Medicare enrollment records show 157 clinicians reassign Medicare billing to Northeastern Health System, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 46 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 27

Certified Registered Nurse Anesthetist (CRNA)32
Nurse Practitioner27
Internal Medicine19
Emergency Medicine17
Neurology10
General Surgery8
Hospitalist8
Anesthesiology5
19 other specialties31

Nearest to this location (20)

See all 157
Emergency Medicine
NPI 1235146036
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOSSame address
Neurology
NPI 1902168438
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts MedicareSame address
Neurology
NPI 1134350069
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1548304892
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOSSame address
General Surgery
NPI 1134204852
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts MedicareSame address
Neurology
NPI 1831139682
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts MedicareSame address
Certified Registered Nurse Anesthetist (CRNA)
NPI 1093504763
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ Accepts MedicareSame address
Thoracic Surgery
NPI 1023239720
205 HARRIS CIR STE 202
Tahlequah, OK 74464
(918) 485-0068
✔ PECOS✔ Accepts Medicare0.3 mi
General Surgery
NPI 1548218803
205 HARRIS CIR
Tahlequah, OK 74464
(918) 207-1140
✔ PECOS✔ Accepts Medicare0.3 mi
Nephrology
NPI 1063725901
1373 E BOONE ST SUITE 1201
Tahlequah, OK 74464
(918) 207-1189
✔ PECOS✔ Accepts Medicare0.4 mi
Rheumatology
NPI 1073615324
1373 E BOONE ST STE 2300
Tahlequah, OK 74464
(918) 207-0025
✔ PECOS✔ Accepts Medicare0.4 mi
Nurse Practitioner
NPI 1184394751
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts Medicare0.4 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1215776414
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ Accepts Medicare0.4 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1871332585
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ Accepts Medicare0.4 mi
Internal Medicine
NPI 1427625714
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts Medicare0.4 mi
Hospitalist
NPI 1316174675
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 456-0641
✔ PECOS✔ Accepts Medicare0.4 mi
Neurology
NPI 1508093675
1400 E DOWNING ST
Tahlequah, OK 74464
(918) 453-2111
✔ PECOS✔ Accepts Medicare0.4 mi
Cardiovascular Disease (Cardiology)
NPI 1073525515
1500 E. DOWNING #
Tahlequah, OK 74464
(918) 207-0882
✔ PECOS✔ Accepts Medicare0.5 mi
Emergency Medicine
NPI 1902837776
100 S BLISS AVE
Tahlequah, OK 74464
(918) 458-3104
✔ PECOS✔ Accepts Medicare0.5 mi
Family Practice
NPI 1164403986
1201 EAST ROSS BYPASS
Tahlequah, OK 74464
(918) 207-0991
✔ PECOS✔ Accepts Medicare0.5 mi
See all 157 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 Northeastern Health System's NPI number?

The NPI number for Northeastern Health System is 1619031465. It was assigned to this organization in the NPPES registry on December 19, 2006. The provider was formerly known as Tahlequah Hospital Authority.

Where is Northeastern Health System located?

Northeastern Health System is located at 1400 E Downing St, Tahlequah, OK 74464. The listed phone number is (918) 456-0641.

What is Northeastern Health System's specialty?

The primary specialty registered for this NPI is Psychiatric Unit with taxonomy code 273R00000X.

Is Northeastern Health System enrolled in Medicare?

Yes. Northeastern Health System is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Northeastern Health System?

According to the CMS Revalidation Reassignment List (October 2026 release), 157 clinicians in 27 Medicare specialties reassign their Medicare billing to Northeastern Health System. 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 Certified Registered Nurse Anesthetist (CRNA) (32), Nurse Practitioner (27) and Internal Medicine (19). Of these, 7 practice at this address and 46 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Northeastern Health System was last updated on April 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.