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STILLWATER INTERNAL MEDICINE
NPI 1033172168
Internal Medicine in Stillwater, OK

Active since April 10, 2006CLIA 37D2135945 · Waiver
709 S WESTERN RD, STILLWATER, OK 74074(405) 707-9800(405) 707-0004 Get Directions Write a Review

NPPES record last updated: April 20, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Stillwater Internal Medicine NPPES

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

STILLWATER INTERNAL MEDICINE (NPI 1033172168) is a healthcare organization registered as an internal medicine in Stillwater, Oklahoma and active in the NPI registry since April 2006. The organization holds a CLIA Waiver certificate valid through August 29, 2027 and lists Sarah Fox, Director Financial Services, as its authorized official.

NPPES Registry Identity

NPI1033172168
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGROUP PRACTICE ASSOCIATES, INC.
Location Address709 S WESTERN RDStillwater, OK 74074-4126
Mailing Address6585 S Yale AveTulsa, OK 74136-8384 · (918) 481-2767 · Fax (918) 481-7611
Phone(405) 707-9800
Fax(405) 707-0004
Organization SubpartNo
Authorized OfficialSarah FoxDirector Financial Services · (918) 481-7616
Enumeration DateApril 10, 2006
Last NPPES UpdateApril 20, 2008
✔ NPI 1033172168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ 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 ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X
709 S WESTERN RD, Stillwater, OK 74074
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Other Names 1

Doing Business AsStillwater Internal Medicine

Other Identifiers 1

Medicare NSC1006210001

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 Waiver 37D2135945

Stillwater Internal Medicine · Stillwater, OK
Active · expires Aug 29, 2027
CLIA Number37D2135945
Laboratory TypePhysician Office
Certificate Effective DateAugust 30, 2025
Certificate Expiration DateAugust 29, 2027
Laboratory DirectorSteve Cummings
Laboratory Phone(405) 533-6047
Laboratory LocationStillwater Internal Medicine1301 W 6th Ave, Ste 206, Stillwater, OK 74074
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 3

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

ORTHOPAEDIC AND SPORTS MEDICINE CENTER-NORMAN, P.C.
Durable Medical Equipment & Medical Supplies
709 S WESTERN RD
STILLWATER, OK 74074
Payne County (405) 364-7900
KATHLEEN M HARDER MD PLLC
Internal Medicine
709 S WESTERN RD
STILLWATER, OK 74074
Payne County (405) 707-9800
STEVE W CUMMINGS MD PLLC
Internal Medicine
709 S WESTERN RD
STILLWATER, OK 74074
Payne County (405) 707-9800

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 Group Practice Associates, Inc.'s NPI number?

The NPI number for Group Practice Associates, Inc. is 1033172168. It was assigned to this organization in the NPPES registry on April 10, 2006. The provider is doing business as Stillwater Internal Medicine.

Where is Group Practice Associates, Inc. located?

Group Practice Associates, Inc. is located at 709 S Western Rd, Stillwater, OK 74074. The listed phone number is (405) 707-9800.

What is Group Practice Associates, Inc.'s specialty?

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

Does Group Practice Associates, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 37D2135945) is associated with this NPI, valid through August 29, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Group Practice Associates, Inc. was last updated on April 20, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.