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Internal Medicine - Cardiovascular Diseases in Round Rock, TX

Browse 16 Internal Medicine - Cardiovascular Disease providers listed in NPPES with a practice address in Round Rock, Texas.

16 Healthcare Providers

How Round Rock compares with the U.S.

Round Rock has 13 clinicians in Internal Medicine - Cardiovascular Disease per 100,000 residents, about 1.6 times the U.S. rate of 7.9.

That is 16 active clinicians in Internal Medicine - Cardiovascular Disease with a practice address in Round Rock, for a population of 127,786.

The Texas rate is 5.3 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

86% of clinicians in Internal Medicine - Cardiovascular Disease in Round Rock listed in the CMS Medicare file (12 of 14) accept Medicare assignment. That is lower than the Texas share of 98%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

64% of clinicians in Internal Medicine - Cardiovascular Disease in Round Rock listed in the CMS Medicare file (9 of 14) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Texas share of 36%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine - Cardiovascular Disease Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Cardiovascular Disease practitioners in Round Rock, TX

Source: CMS PECOS
PECOS Enrolled Specialists 14 In Round Rock, TX
Part B Lab & Imaging Eligible 13 Diagnostic Referrals
DME Ordering Eligible 15 Durable Medical Equipment
Home Health Agency Referrals 13 HHA Ordering Eligible
Showing 1โ€“16 of 16 providers
With recent CMS data first, then Aโ€“Z

Dr. Sam Afshar , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2410 Round Rock Ave Ste 110, Round Rock, TX 786814019
Phone: 9039345490
NPI Identifier 1992913933
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Dr. Leticia Castillo Kontak , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1891994968
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Dr. Jaime A Hernandez Montfort , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1235389149
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Dr. Andrew Carl Kontak , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1447469077
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Dr. Henry S Lucid , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
16010 Park Valley Dr, Suite 200, Round Rock, TX 786813574
Phone: 5122062999
NPI Identifier 1265424469
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Dr. Shanti Nulu , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Telehealth Services Available
301 Seton Pkwy Ste 302, Round Rock, TX 786658003
Phone: 5123244812
NPI Identifier 1699961938
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Dr. Isadora Sande Mathias , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1689169716
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Dr. Aditi Shankar , MBBS

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1942707252
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Dr. Amy Butler Stancoven , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Telehealth Services Available
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1790986354
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Dr. Joseph M Szczytowski , DO

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2410 Round Rock Ave, Suite 110, Round Rock, TX 786814003
Phone: 5123410889
NPI Identifier 1316043888
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Dr. Lakshya U Trivedi , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
301 Seton Pkwy Ste 302, Round Rock, TX 786658003
Phone: 5123244812
NPI Identifier 1932668977
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Dr. Dan Vaisman , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
301 Seton Pkwy, Suite 302, Round Rock, TX 786658002
Phone: 5123244812
NPI Identifier 1558339663
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Dr. Jacobo Vazquez , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
302 University Blvd, Round Rock, TX 786651032
Phone: 5125090200
NPI Identifier 1568615243
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Dr. Thomas Childress Vinson , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
16010 Park Valley Dr, Suite 200, Round Rock, TX 78681
Phone: 5122449944
NPI Identifier 1407843287
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Dr. Maha Z Yaqub , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status
300 University Blvd, Round Rock, TX 786651032
Phone: 5125090100
NPI Identifier 1750010898
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Dr. Eric F Roehm , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status
7200 Wyoming Spgs, Ste 1400, Austin Heart, Round Rock #1, Round Rock, TX 786814303
Phone: 5122442263
NPI Identifier 1982605374
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Frequently Asked Questions about Internal Medicine - Cardiovascular Disease in Round Rock

How do I check a Internal Medicine - Cardiovascular Disease practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Texas licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.