2026 NPPES data Cardiovascular Disease Physician NPI 1033191838 MD
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THOMAS ALEXANDER, MD

Cardiovascular Disease Physician in CORPUS CHRISTI, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
4K
Medicare Part D claims · 727 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$2.8K
100 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS ALEXANDER, MD is a Cardiovascular Disease Physician ([object Object]) practicing in CORPUS CHRISTI, Texas with a Medicare Part D prescribing footprint of 4K claims across 727 beneficiaries — 21% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $2.8K across 100 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS ALEXANDER, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 4,354 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

THOMAS ALEXANDER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS ALEXANDER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 11/17/2005

NPI 1033191838

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

4,354 44% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Texas

How Cardiovascular Disease Physician compares to other specialties among Texas providers

Texas providers

Cardiovascular Disease Physician share within Texas

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within Texas

Medicare quality performance — MIPS

THOMAS ALEXANDER, MD's 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cardiovascular Disease Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Cardiovascular Disease Physician) — 100/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

THOMAS ALEXANDER, MD is a Cardiovascular Disease Physician provider practicing in CORPUS CHRISTI, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1033191838. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

THOMAS ALEXANDER, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 1202 3RD ST, CORPUS CHRISTI, TX, 78404, with a listed phone of (361) 883-3962. NPI 1033191838 was issued on 11/17/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALEXANDER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 4,354 prescription claims written by this provider, covering 727 Medicare beneficiaries and totaling roughly $787K in drug spend, split 21% brand-name and 79% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year, compared with the national average of 83.1.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1202 3RD ST
CORPUS CHRISTI, TX 78404

Provider Details

NPI 1033191838
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 11/17/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where THOMAS ALEXANDER, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CORPUS CHRISTI HEART CLINIC, PLLC
CORPUS CHRISTI, TX
SOUTH TEXAS SPORTS MEDICINE INC
PORTLAND, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for THOMAS ALEXANDER, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.8K

Largest payer

Medtronic, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to THOMAS ALEXANDER, MD. To verify THOMAS ALEXANDER, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

THOMAS ALEXANDER, MD — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 4,354 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

4,354
Total Claims
$787K
Total Drug Cost
727
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,970
Total Day Supply
266,458
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$726K
Generic Drug Cost
$61K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
74.3 years
Avg HCC Risk Score
1.86
Gender Split
48% female / 52% male
Age Distribution
<65: 52, 65-74: 315, 75-84: 284, 85+: 76

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Metoprolol Succinate
366
Atorvastatin Calcium
323
Eliquis
Apixaban
314
Lisinopril
278
Xarelto
Rivaroxaban
253
Metoprolol Tartrate
246
Furosemide
198
Amlodipine Besylate
186
Warfarin Sodium
141
Clopidogrel
Clopidogrel Bisulfate
138

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How THOMAS ALEXANDER, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

THOMAS ALEXANDER, MD's 4,354 claims are above the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as ALEXANDER.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS ALEXANDER, MD's specialty?
THOMAS ALEXANDER, MD specializes in Cardiovascular Disease Physician and practices in CORPUS CHRISTI, Texas. Credentials: MD.
How much does THOMAS ALEXANDER, MD prescribe under Medicare Part D?
In 2023, THOMAS ALEXANDER, MD wrote 4,354 Medicare Part D claims totaling $787K in drug costs for 727 beneficiaries.
What is THOMAS ALEXANDER, MD's Medicare quality score?
THOMAS ALEXANDER, MD has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is THOMAS ALEXANDER, MD located?
THOMAS ALEXANDER, MD is located at 1202 3RD ST, CORPUS CHRISTI, TX, 78404. Phone: (361) 883-3962.
What is THOMAS ALEXANDER, MD's NPI number?
THOMAS ALEXANDER, MD's National Provider Identifier (NPI) is 1033191838, issued on 11/17/2005.
Does THOMAS ALEXANDER, MD prescribe more brand-name or generic drugs?
THOMAS ALEXANDER, MD's prescribing is 21% brand-name and 79% generic drugs by claim count, with $726K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does THOMAS ALEXANDER, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS ALEXANDER, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS ALEXANDER, MD accept Medicare?
THOMAS ALEXANDER, MD appears in CMS Medicare data with 4,354 Part D claims and 727 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS ALEXANDER, MD's credentials?
THOMAS ALEXANDER, MD's NPI is 1033191838 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology