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Internal Medicine - Cardiovascular Diseases in Houston, TX

Browse 312 Internal Medicine - Cardiovascular Disease providers listed in NPPES with a practice address in Houston, Texas.

312 Healthcare Providers

How Houston compares with the U.S.

Houston has 13 clinicians in Internal Medicine - Cardiovascular Disease per 100,000 residents, about 1.7 times the U.S. rate of 7.9.

That is 312 active clinicians in Internal Medicine - Cardiovascular Disease with a practice address in Houston, for a population of 2,328,253.

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.

99% of clinicians in Internal Medicine - Cardiovascular Disease in Houston listed in the CMS Medicare file (245 of 247) accept Medicare assignment. That is similar to 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.

42% of clinicians in Internal Medicine - Cardiovascular Disease in Houston listed in the CMS Medicare file (103 of 247) 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 Houston, TX

Source: CMS PECOS
PECOS Enrolled Specialists 266 In Houston, TX
Part B Lab & Imaging Eligible 267 Diagnostic Referrals
DME Ordering Eligible 271 Durable Medical Equipment
Home Health Agency Referrals 267 HHA Ordering Eligible
Showing 1โ€“20 of 312 providers
With recent CMS data first, then Aโ€“Z

Dr. Arup Achari , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1701 Sunset Blvd, Houston, TX 770051713
Phone: 7135265511
NPI Identifier 1538146022
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Dr. George Oladipo Adesina , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
2727 W Holcombe Blvd, Houston, TX 77025
Phone: 7134420000
NPI Identifier 1457642647
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Dr. Shivani Roopa Aggarwal , MBBS, MS

Internal Medicine - Cardiovascular Disease

Active NPI Status
6701 Fannin St, Houston, TX 770302608
Phone: 8328241000
NPI Identifier 1740513175
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Dr. Anwar Ahmad , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
2000 Crawford St, 1403, Houston, TX 770029000
Phone: 7136511787
NPI Identifier 1598704819
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Dr. Asif Akhtar , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
19255 Park Row Ste 204, Houston, TX 770847310
Phone: 2818293860
NPI Identifier 1801900352
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Qasim Saleh Abdulllah Al Abri

Internal Medicine - Cardiovascular Disease

Active NPI Status
6550 Fannin St Ste 1401, Houston, TX 770302738
Phone: 7134447353
NPI Identifier 1750998241
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Dr. Haytham Asad Al-Azzeh , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
11920 Astoria Blvd Ste 220, Houston, TX 77089
Phone: 2814840900
NPI Identifier 1437170438
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Dr. Mica Alex , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
3525 W Holcombe Blvd, Houston, TX 770251313
Phone: 7138142800
NPI Identifier 1285297945
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Dr. Abdul Ali , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8830 Long Point Rd, Suite 507, Houston, TX 770553040
Phone: 7134644140
NPI Identifier 1598734121
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Dr. Asif Ali , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8830 Long Point Rd, Suite# 507, Houston, TX 770553040
Phone: 7134644140
NPI Identifier 1881621993
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Dr. Hyeon Ju Ryoo Ali , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1515 Holcombe Blvd, Houston, TX 770304000
Phone: 7137926161
NPI Identifier 1760903223
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Dr. Sajid Asim Ali , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8830 Long Point Rd Ste 507, Houston, TX 770553026
Phone: 7134644140
NPI Identifier 1750693248
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Dr. Sadeer Alkindi , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
6550 Fannin St Ste 1901, Houston, TX 770302719
Phone: 7134411100
NPI Identifier 1518308931
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Dr. Mouaz H Al-Mallah , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
6550 Fannin St Ste 1901, Houston, TX 770302719
Phone: 7134411100
NPI Identifier 1255446217
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Dr. Mahmoud Al Rifai , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
6550 Fannin St, Houston, TX 770302717
Phone: 7137903311
NPI Identifier 1922456219
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Dr. Hildreth Vernon Anderson , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status
6410 Fannin St, 600, Houston, TX 770303000
Phone: 8323257211
NPI Identifier 1588682843
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Dr. Gregory O Appleton , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
6441 Main St, Houston, TX 770301502
Phone: 2815790061
NPI Identifier 1114927928
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Dr. Faisal A Arain , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
13325 Hargrave Rd, 150, Houston, TX 77070
Phone: 2819557863
NPI Identifier 1144227752
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Dr. Basant Arya , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
7200 Cambridge St Fl 6, Houston, TX 770304202
Phone: 7137982545
NPI Identifier 1851465926
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Dr. Steven Michael Assalita , MD

Internal Medicine - Cardiovascular Disease

Active NPI Status Accepts Medicare Assignment
1504 Taub Loop, Houston, TX 770301608
Phone: 7137981750
NPI Identifier 1184967937
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Frequently Asked Questions about Internal Medicine - Cardiovascular Disease in Houston

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.