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INTERNAL MEDICINE ASSOCIATES
NPI 1578698320
Internal Medicine in Aransas Pass, TX

Active since February 22, 2007CLIA 45D2029510 · Waiver
1711 W WHEELER AVE, SUITE 3, ARANSAS PASS, TX 78336(361) 758-1599(361) 758-2227 Get Directions Write a Review

NPPES record last updated: August 20, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Internal Medicine Associates NPPES

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

INTERNAL MEDICINE ASSOCIATES (NPI 1578698320) is a healthcare organization registered as an internal medicine in Aransas Pass, Texas and active in the NPI registry since February 2007. The organization holds a CLIA Waiver certificate valid through September 8, 2027 and lists Robert Low, President, as its authorized official.

NPPES Registry Identity

NPI1578698320
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameINTERNAL MEDICINE ASSOCIATES
Location Address1711 W WHEELER AVE, SUITE 3Aransas Pass, TX 78336-4536
Mailing Address1711 W Wheeler Ave, Suite 3Aransas Pass, TX 78336-4536 · (361) 758-1599 · Fax (361) 758-2227
Phone(361) 758-1599
Fax(361) 758-2227
Organization SubpartNo
Authorized OfficialRobert LowPresident · (361) 758-1599
Enumeration DateFebruary 22, 2007
Last NPPES UpdateAugust 20, 2014
✔ NPI 1578698320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · G4027
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.
1711 W WHEELER AVE, Aransas Pass, TX 78336
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Other Identifiers 4

Other0024KZTX · Bcbs Of Texas
OtherDB7095TX · Railroad Medicare
Medicaid1697039-01TX
Medicare PIN00682WTX

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Internal Medicine Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Internal Medicine Associates, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Robert Low, D.O.
Internal Medicine
NPI 1881761989
1711 W WHEELER AVE SUITE 3
Aransas Pass, TX 78336
(361) 758-1599
✔ PECOS✔ Accepts MedicareSame address
Melissa Bruce, F.N.P.
Nurse Practitioner
NPI 1558626028
1401 W WHEELER AVE STE A
Aransas Pass, TX 78336
(361) 758-1599
✔ PECOS✔ Accepts Medicare0.3 mi
Ronald Bruce, D.O.
Internal Medicine
NPI 1922145168
1121 HIGHWAY 35 N
Rockport, TX 78382
(361) 729-5388
✔ PECOS✔ Accepts Medicare11 mi
Samantha Mayfield, FNP-C
Nurse Practitioner
NPI 1366220725
1121 HIGHWAY 35 N
Rockport, TX 78382
(361) 221-1945
✔ PECOS11 mi
Katharine Mcnamara, D.O.
Family Practice
NPI 1558621334
1121 HIGHWAY 35 N
Rockport, TX 78382
(361) 524-2004
✔ PECOS✔ Accepts Medicare11 mi
Seema Wetzel, MSN, RN, FNP-C
Nurse Practitioner
NPI 1356780381
1133 E SINTON ST
Sinton, TX 78387
(361) 587-9040
✔ PECOS✔ Accepts Medicare22 mi

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

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 45D2029510

Internal Medicine Associates · Aransas Pass, TX
Active · expires Sep 8, 2027
CLIA Number45D2029510
Laboratory TypePhysician Office
Certificate Effective DateSeptember 9, 2025
Certificate Expiration DateSeptember 8, 2027
Laboratory DirectorRobert Low
Laboratory Phone(361) 758-1599
Laboratory LocationInternal Medicine Associates1711 West Wheeler Ave Suite 3, Aransas Pass, TX 78336
CLIA data matches this NPI record on: Address Name Phone
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 Internal Medicine Associates's NPI number?

The NPI number for Internal Medicine Associates is 1578698320. It was assigned to this organization in the NPPES registry on February 22, 2007.

Where is Internal Medicine Associates located?

Internal Medicine Associates is located at 1711 W Wheeler Ave Suite 3, Aransas Pass, TX 78336. The listed phone number is (361) 758-1599.

What is Internal Medicine Associates's specialty?

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

Is Internal Medicine Associates enrolled in Medicare?

Yes. Internal Medicine Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Internal Medicine Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Internal Medicine Associates. 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 (3), Internal Medicine (2) and Family Practice (1). Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Internal Medicine Associates hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2029510) is associated with this NPI, valid through September 8, 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 Internal Medicine Associates was last updated on August 20, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.