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GREGORY R MONTOYA MD
NPI 1083614176
Psychiatry & Neurology - Psychiatry in Texarkana, TX

Active since July 29, 2005PECOS EnrolledAccepts Medicare Assignment
1902 GALLERIA OAKS DR, TEXARKANA, TX 75503(903) 614-3800(903) 614-3525 Get Directions Write a Review

NPPES record last updated: July 14, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gregory R Montoya Md NPPES

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

GREGORY R MONTOYA MD (NPI 1083614176) is an individual psychiatry provider in Texarkana, Texas, licensed in Texas (H5012) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Christus St Michael Health System, and is a graduate of University Of Texas Medical School At San Antonio (1974).

NPPES Registry Identity

NPI1083614176
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameGREGORY R MONTOYACredential: MD
Location Address1902 GALLERIA OAKS DRTexarkana, TX 75503-4619
Mailing Address5002 Cowhorn Creek RdTexarkana, TX 75503-9766 · (903) 614-3000 · Fax (903) 614-3525
Phone(903) 614-3800
Fax(903) 614-3525
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 1974
Enumeration DateJuly 29, 2005
Last NPPES UpdateJuly 14, 2007
✔ NPI 1083614176 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in TX · H5012✔ Licensed in AR · E3176
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1902 GALLERIA OAKS DR, Texarkana, TX 75503
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Other Identifiers 2

Medicare UPIND43247
Medicare ID-Type Unspecified8663M0TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory R Montoya Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173614765
PECOS Enrollment IDI20070810000750
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gregory Montoya reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sabine Valley Regional Mhmr Center
76 mi
Mental Health (Including Community Mental Health Center)
107 WOODBINE PL
Longview, TX 75601
  • Reassigned Medicare billing, Texas enrollment
  • 46 clinicians in this Medicare group
NPI 1639232002 (903) 758-2471
Core Health Systems
77 mi
Federally Qualified Health Center (FQHC)
1300 N 6TH ST
Longview, TX 75601
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
NPI 1033891148 (903) 232-8928

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus St Michael Health System

Acute Care Hospitals · Texarkana, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number450801
Location2600 St Michael DrTexarkana, TX 75503 · Bowie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.88 typical visit price
range $54.84 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

BARRY W BULLARD PSYD
Psychologist
1902 GALLERIA OAKS DR
TEXARKANA, TX 75503
Bowie County (903) 614-3800
EDWARD W. TOBEY MD
Psychiatry & Neurology (Psychiatry)
1902 GALLERIA OAKS DR
TEXARKANA, TX 75503
Bowie County (903) 614-3800
SANDRA JO HIGGS APRN, FNP, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1902 GALLERIA OAKS DR
TEXARKANA, TX 75503
Bowie County (903) 614-3800
CAROL A TATUM ANP CNS
Clinical Nurse Specialist (Psychiatric/Mental Health)
1902 GALLERIA OAKS DR
TEXARKANA, TX 75503
Bowie County (903) 614-3800

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 Gregory Montoya's NPI number?

The NPI number for Gregory Montoya is 1083614176. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Where is Gregory Montoya located?

Gregory Montoya practices at 1902 Galleria Oaks Dr, Texarkana, TX 75503. The listed phone number is (903) 614-3800.

What is Gregory Montoya's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gregory Montoya enrolled in Medicare?

Yes. Gregory Montoya is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Gregory Montoya's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Montoya reassigns Medicare benefits to 2 organizations: Sabine Valley Regional Mhmr Center (Longview, TX) and Core Health Systems (Longview, TX). Each 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 Gregory Montoya's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Montoya accept?

Health plans from Blue Cross and Blue Shield of Texas and Cigna Healthcare list Gregory Montoya 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.

Is Gregory Montoya affiliated with any hospitals?

According to CMS data, Gregory Montoya is affiliated with Christus St Michael Health System.

When was this NPI record last updated?

The NPPES record for Gregory Montoya was last updated on July 14, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.