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DIAGNOSTIC GROUP INTEGRATED HEALTHCARE SYSTEM PLLC
NPI 1194061655
Internal Medicine in Beaumont, TX

Active since January 02, 2013CLIA Certified · 6 labs
3406 COLLEGE ST STE 200, BEAUMONT, TX 77701(409) 813-1677(409) 838-7598 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 18, 2025, Mar 12, 2025, May 10, 2024 and 3 more (6 updates tracked since 2022).

About Diagnostic Group Integrated Healthcare System Pllc NPPES

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

DIAGNOSTIC GROUP INTEGRATED HEALTHCARE SYSTEM PLLC (NPI 1194061655) is a healthcare organization registered as an internal medicine in Beaumont, Texas and active in the NPI registry since January 2013. The organization holds 6 active CLIA laboratory certificates, maintains 14 additional practice locations, and lists Jennifer Ruiz, Administrator, as its authorized official.

NPPES Registry Identity

NPI1194061655
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDIAGNOSTIC GROUP INTEGRATED HEALTHCARE SYSTEM PLLC
Location Address3406 COLLEGE ST STE 200Beaumont, TX 77701-4612
Mailing Address3406 College St Ste 200, Attn: Credentialing DeptBeaumont, TX 77701-4612 · (409) 813-2332 · Fax (409) 838-7598
Phone(409) 813-1677
Fax(409) 838-7598
Organization SubpartNo
Authorized OfficialJennifer RuizAdministrator · (409) 813-1677
Enumeration DateJanuary 2, 2013
Last NPPES UpdateNovember 18, 20256 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1194061655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 13

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedEmergency MedicineTaxonomy 207P00000X
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X
Also ListedSurgeryTaxonomy 208600000X
Also ListedColon & Rectal SurgeryTaxonomy 208C00000X
Also ListedGeneral PracticeTaxonomy 208D00000X
Also ListedHospitalistTaxonomy 208M00000X
Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X
3406 COLLEGE ST STE 200, Beaumont, TX 77701
Open in Google Maps ↗

Secondary Practice Locations 14

Location 1288 Country Lane DrLumberton, TX 77657-6804 · Phone (409) 813-1677
Location 2860 S 8th StBeaumont, TX 77701-4626 · Phone (409) 363-5800
Location 32830 Calder StBeaumont, TX 77702-1809 · Phone (409) 892-7171
Location 43080 College StBeaumont, TX 77701-4606 · Phone (409) 212-5000
Location 53475 Fannin StBeaumont, TX 77701-3807 · Phone (409) 813-1677
Location 63282 College StBeaumont, TX 77701-4610 · Phone (409) 813-1677
Location 76480 Delaware StBeaumont, TX 77706 · Phone (409) 813-1677
Location 82353 N Main StVidor, TX 77662-2610 · Phone (409) 813-1677
Location 91255 Highway 327 ESilsbee, TX 77656-6007 · Phone (409) 813-1677
Location 102200 Highway 365Nederland, TX 77627-5506 · Phone (409) 813-1677
Location 113480 College StBeaumont, TX 77701-4612 · Phone (409) 813-1677
Location 123406 College St, SUITE 100Beaumont, TX 77701-4612 · Phone (409) 813-1677 · Fax (409) 813-1699
Location 133406 College St Ste 101Beaumont, TX 77701-4612 · Phone (409) 813-1677
Location 143406 College St Ste 100Beaumont, TX 77701-4612 · Phone (409) 813-1677

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare, WellPoint.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)

Diagnostic Group Integrated Healthcare System Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

41

Medicare enrollment records show 41 clinicians reassign Medicare billing to Diagnostic Group Integrated Healthcare System PLLC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 29 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 9

Nurse Practitioner22
Internal Medicine6
General Surgery4
Pulmonary Disease3
Family Practice2
Certified Clinical Nurse Specialist (CNS)1
Colorectal Surgery (Proctology)1
Endocrinology1
1 other specialty1

Nearest to this location (20)

See all 41
Jillian Fleisher, D.O.
General Surgery
NPI 1437598745
3406 COLLEGE ST STE 101
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Pavan Naidu, MD
General Surgery
NPI 1053874081
3406 COLLEGE ST STE 101
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Alex Ordonez, MD, FACS, FASMBS
General Surgery
NPI 1215163258
3406 COLLEGE ST STE 101
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Omidreza Tabatabaie, MD
General Surgery
NPI 1477082527
3406 COLLEGE ST STE 101
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Sana Ali, MD
Pulmonary Disease
NPI 1699268482
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOSSame address
Qamar Arfeen, M.D.
Pulmonary Disease
NPI 1295738649
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Terrance Barrett, NP
Nurse Practitioner
NPI 1558795492
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOSSame address
Megan Calloway, RN
Nurse Practitioner
NPI 1689282816
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Douglas Curry, MSN, APRN, FNP-C
Nurse Practitioner
NPI 1134737133
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Nicholas Latuso, M.B.B.S.
Internal Medicine
NPI 1386006294
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Yugal Maheshwari, MD
Endocrinology
NPI 1750366324
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Mohammad Siddiqui, MD
Pulmonary Disease
NPI 1487742383
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Keith Stout, M. D.
Family Practice
NPI 1053314393
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Christopher Vickery, NP
Nurse Practitioner
NPI 1689286775
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts MedicareSame address
Courtney Wagner-Bijak, MSN FNP-C
Nurse Practitioner
NPI 1215389267
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOSSame address
Brianna Jordan
Nurse Practitioner
NPI 1194465187
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts Medicare0.1 mi
Taylor Martin
Nurse Practitioner
NPI 1497630909
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts Medicare0.1 mi
Adham Abdulamir, MD
Hospitalist
NPI 1730677907
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts Medicare0.1 mi
Juan Iribarren, MD
Internal Medicine
NPI 1720283336
3480 COLLEGE ST
Beaumont, TX 77701
(409) 813-1677
✔ PECOS✔ Accepts Medicare0.1 mi
Shari Miles, APRN
Nurse Practitioner
NPI 1942843339
3030 NORTH ST STE 560
Beaumont, TX 77702
(409) 835-9834
✔ PECOS1.4 mi
See all 41 clinicians

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

CLIA Laboratory Certificates CMS CLIA 6

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D2094955

Diagnostic Group Integrated Healthcare System, PLLC · Silsbee, TX
Active · expires Apr 27, 2027
CLIA Number45D2094955
Laboratory TypePhysician Office
Certificate Effective DateApril 28, 2025
Certificate Expiration DateApril 27, 2027
Laboratory DirectorKeith Stout
Laboratory Phone(409) 813-1677
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC1255 Hwy 327, Silsbee, TX 77656
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2075245

Diagnostic Group Integrated Healthcare System, PLLC · Beaumont, TX
Active · expires Mar 24, 2028
CLIA Number45D2075245
Laboratory TypePhysician Office
Certificate Effective DateMarch 25, 2026
Certificate Expiration DateMarch 24, 2028
Laboratory DirectorKeith Stout
Laboratory Phone(409) 730-2022
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC3282 College Street, Beaumont, TX 77701
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2168486

Diagnostic Group Integrated Healthcare System, PLLC · Vidor, TX
Active · expires Jun 30, 2027
CLIA Number45D2168486
Laboratory TypePhysician Office
Certificate Effective DateJuly 1, 2025
Certificate Expiration DateJune 30, 2027
Laboratory DirectorKeith Stout
Laboratory Phone(409) 540-4672
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC2353 North Main Street, Vidor, TX 77662
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2052863

Diagnostic Group Integrated Healthcare System, PLLC · Beaumont, TX
Active · expires Jan 21, 2027
CLIA Number45D2052863
Laboratory TypePhysician Office
Certificate Effective DateJanuary 22, 2025
Certificate Expiration DateJanuary 21, 2027
Laboratory DirectorKeith Stout
Laboratory Phone(409) 730-2039
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC3480 College Street, Beaumont, TX 77701
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2088820

Diagnostic Group Integrated Healthcare System, PLLC · Beaumont, TX
Active · expires Dec 16, 2026
CLIA Number45D2088820
Laboratory TypePhysician Office
Certificate Effective DateDecember 17, 2024
Certificate Expiration DateDecember 16, 2026
Laboratory DirectorKeith Stout
Laboratory Phone(409) 730-2022
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC6480 Delaware Street, Beaumont, TX 77706
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2088362

Diagnostic Group Integrated Healthcare System, PLLC · Nederland, TX
Active · expires Dec 14, 2026
CLIA Number45D2088362
Laboratory TypePhysician Office
Certificate Effective DateDecember 15, 2024
Certificate Expiration DateDecember 14, 2026
Laboratory DirectorKeith Stout
Laboratory Phone(409) 730-2022
Laboratory LocationDiagnostic Group Integrated Healthcare System, PLLC2200 Hwy 365, Nederland, TX 77627
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

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 Diagnostic Group Integrated Healthcare System PLLC's NPI number?

The NPI number for Diagnostic Group Integrated Healthcare System PLLC is 1194061655. It was assigned to this organization in the NPPES registry on January 2, 2013.

Where is Diagnostic Group Integrated Healthcare System PLLC located?

Diagnostic Group Integrated Healthcare System PLLC is located at 3406 College St Ste 200, Beaumont, TX 77701. The listed phone number is (409) 813-1677.

What is Diagnostic Group Integrated Healthcare System PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Diagnostic Group Integrated Healthcare System PLLC enrolled in Medicare?

Yes. Diagnostic Group Integrated Healthcare System PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Diagnostic Group Integrated Healthcare System PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 41 clinicians in 9 Medicare specialties reassign their Medicare billing to Diagnostic Group Integrated Healthcare System PLLC. 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 Nurse Practitioner (22), Internal Medicine (6) and General Surgery (4). Of these, 4 practice at this address and 29 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Diagnostic Group Integrated Healthcare System PLLC hold CLIA laboratory certificates?

Yes. 6 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Diagnostic Group Integrated Healthcare System PLLC accept?

Health plans from Molina Healthcare and WellPoint list Diagnostic Group Integrated Healthcare System PLLC 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 Diagnostic Group Integrated Healthcare System PLLC was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.