Winston Schuyler Marshall, M.D.
Interventional Cardiology Physician · Denison, TX
Winston Schuyler Marshall, M.D. is an interventional cardiology physician with a practice address in Denison, Texas, and NPI 1447287057, issued on Jun 27, 2006. Check the license (Texas J6564, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Winston Schuyler Marshall
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- J6564 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5012 S US Highway 75, Denison, TX 75020
- Phone
- (903) 416-6325
- Enumerated
- Jun 27, 2006
- Record last updated
- Oct 9, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (903) 416-6326
- Medicaid IDs
- 132015209 TX
200217220A OK - Medicare enrollment
- Enrolled (PECOS I20100504000680); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 724 in Texas → Look up another NPI →
Also registered at 5012 S US Highway 75
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Steven Bentley, PA-CPhysician Assistant1760557946
- Timothy Brumit, MDPediatrics Physician1043269202
- Gregory Carlson, MDFamily Medicine Physician1386694438
- Robert Church, MDFamily Medicine Physician1306048673
- Charlene Crumby, RN MSN FNPWomen's Health Nurse Practitioner1790999480
Verify Winston Schuyler Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J6564Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average interventional cardiology physician in 2024
5,260 Medicare Part D claims for 805 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Eliquis517 claims
- Metoprolol Succinate373 claims
- Olmesartan Medoxomil297 claims
- Clopidogrel287 claims
- Rosuvastatin Calcium245 claims
- Carvedilol213 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,789.46
66 payments; by number, the most common kind was food and beverage; the largest payer was Heartflow, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Healthtexas Provider NetworkDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Winston Schuyler Marshall among 724 interventional cardiology physician records in Texas
Winston Schuyler Marshall, M.D. is one of 724 interventional cardiology physician records with a practice address in Texas. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 57% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated1993 · median 2003 among the 653 with a school on file
- Record last updated2017 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 interventional cardiology physician records list a practice address in Denison
They are 9 of the 554 NPPES records with a practice address in Denison, and 724 interventional cardiology physician records in Texas.
All 724 in Texas → Every provider in Denison → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Apurva Badheka, M.D.Denison, TX 750201457593303
- Mario Bonilla, M.DDenison, TX 750201609873736
- Aravind Gangasani, MDDenison, TX 750201750387759
- Dev Jaiswal, D.O.Denison, TX 750201831639152
- Maziar Mahjoobi, D.O.Denison, TX 750201821123969
- Srinivasa Reddy, MDDenison, TX 750201336145333
- Mukesh Sheth, MDDenison, TX 750201629074208
- Scott Turner, D.O.Denison, TX 750201578681961
Common questions
What is Winston Schuyler Marshall, M.D.'s NPI number?
Winston Schuyler Marshall, M.D.'s National Provider Identifier (NPI) is 1447287057, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Winston Schuyler Marshall, M.D. located?
The NPPES record lists a practice address at 5012 S US Highway 75, Denison, TX, 75020. Phone: (903) 416-6325. Providers update this record themselves, so call before visiting.
How can I verify Winston Schuyler Marshall, M.D.'s license?
NPPES lists Texas license number J6564, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Winston Schuyler Marshall, M.D. prescribe under Medicare Part D?
In 2024, Winston Schuyler Marshall, M.D. had 5,260 Medicare Part D claims for 805 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.