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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DALLAS COUNTY HOSPITAL DISTRICT
NPI 1235538141
Internal Medicine in Dallas, TX

Active since August 15, 2014CLIA 45D2084828 · Accreditation
4201 BROOK SPRING DR BLDG 1, DALLAS, TX 75224(214) 266-1450 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 13, 2026, Dec 7, 2022, Oct 18, 2022 and 1 more (4 updates tracked since 2020).

About Dallas County Hospital District NPPES

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

DALLAS COUNTY HOSPITAL DISTRICT (NPI 1235538141), doing business as Wynnewood Acute Response Clinic, is a healthcare organization registered as an internal medicine in Dallas, Texas and active in the NPI registry since August 2014. The organization holds an CLIA Accreditation certificate valid through November 24, 2027 and lists Frederick P. Cerise, President/chief Executive Officer, as its authorized official.

NPPES Registry Identity

NPI1235538141
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDALLAS COUNTY HOSPITAL DISTRICT
Location Address4201 BROOK SPRING DR BLDG 1Dallas, TX 75224-4968
Mailing AddressPo Box 660599Dallas, TX 75266-0599
Phone(214) 266-1450
Organization SubpartNo
Authorized OfficialFrederick P. CerisePresident/chief Executive Officer · (214) 590-8006
Enumeration DateAugust 15, 2014
Last NPPES UpdateAugust 13, 20264 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1235538141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ 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 ListedSocial Worker · ClinicalTaxonomy 1041C0700X
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
4201 BROOK SPRING DR BLDG 1, Dallas, TX 75224
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Other Names 2

Doing Business AsWynnewood Acute Response Clinic
Other NameOak West Acute Response Clinic

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 Blue Cross and Blue Shield of Texas, WellPoint.Insurance ›

CLIA Laboratory Certificates CMS CLIA

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 Accreditation 45D2084828

Wynnewood Acute Response Clinic-Parkland · Dallas, TX
Active · expires Nov 24, 2027
CLIA Number45D2084828
Laboratory TypeCommunity Clinic
Certificate Effective DateNovember 25, 2025
Certificate Expiration DateNovember 24, 2027
Laboratory DirectorDr. Ibrahim A. Hashim
Laboratory Phone(214) 266-1584
Laboratory LocationWynnewood Acute Response Clinic-Parkland655 West Illinois Avenue Suite 195, Dallas, TX 75224
CLIA data matches this NPI record on: Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES

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

DALLAS COUNTY HOSPITAL DISTRICT
Pediatrics
4201 BROOK SPRING DR BLDG 1
DALLAS, TX 75224
Dallas County (214) 266-1450

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 Dallas County Hospital District's NPI number?

The NPI number for Dallas County Hospital District is 1235538141. It was assigned to this organization in the NPPES registry on August 15, 2014. The provider is doing business as Wynnewood Acute Response Clinic. The provider is also known as Oak West Acute Response Clinic.

Where is Dallas County Hospital District located?

Dallas County Hospital District is located at 4201 Brook Spring Dr Bldg 1, Dallas, TX 75224. The listed phone number is (214) 266-1450.

What is Dallas County Hospital District's specialty?

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

Does Dallas County Hospital District hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 45D2084828) is associated with this NPI, valid through November 24, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Dallas County Hospital District accept?

Health plans from Blue Cross and Blue Shield of Texas and WellPoint list Dallas County Hospital District 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 Dallas County Hospital District was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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.