NPPES file of Aug 9, 2026

Clyde Sullivan, M.D.

Cardiovascular Disease Physician · McKinney, TX

Clyde Sullivan, M.D. is a cardiovascular disease physician with a practice address in McKinney, Texas, and NPI 1295939262, issued on Jun 13, 2007. Check the license (Texas N6695, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295939262
Name
Clyde Sullivan
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
N6695 TX
2866626-S150 OH
Self-reported in NPPES; status is on the state search
Practice location
7850 Collin Mckinney Pkwy, McKinney, TX 75070
Phone
(469) 854-8920
Enumerated
Jun 13, 2007
Record last updated
Jul 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(469) 854-8923
Medicare enrollment
Enrolled (PECOS I20220316001162); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Clyde Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N6695
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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59% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,265 Medicare Part D claims for 200 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Clyde Sullivan1,265
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate177 claims
  2. Atorvastatin Calcium143 claims
  3. Carvedilol120 claims
  4. Lisinopril111 claims
  5. Amlodipine Besylate89 claims
  6. Losartan Potassium89 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.

One hospital affiliation

  1. Shenandoah Medical CenterShenandoah, IA · Critical Access Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Clyde Sullivan among 1,603 cardiovascular disease physician records in Texas

Clyde Sullivan, M.D. is one of 1,603 cardiovascular disease physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.

  • NPI issued2007 · 58% of these records are older, 33% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2004 · median 1998 among the 1,219 with a school on file
  • Record last updated2010 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Texas

There are 1,603 cardiovascular disease physician records in Texas.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Brian Eades, M.D.McKinney, TX 750701538151170
  2. Rajeev Sudhakar, MDMcKinney, TX 750701629215371
  3. Angela Tseng, MDMcKinney, TX 750701073567988
  4. Wael Abo-Auda, M.D.McKinney, TX 750711891782512
  5. Khanh Hoang, MDMcKinney, TX 750691609814912
  6. Darryl Kawalsky, MDMcKinney, TX 750691619924222
  7. Muhammad Khan, MD, FACC, FSCAIMcKinney, TX 750691356334031
  8. Syed Sarmast, M.D.McKinney, TX 750711063685865

Common questions

What is Clyde Sullivan, M.D.'s NPI number?

Clyde Sullivan, M.D.'s National Provider Identifier (NPI) is 1295939262, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Clyde Sullivan, M.D. located?

The NPPES record lists a practice address at 7850 Collin Mckinney Pkwy, McKinney, TX, 75070. Phone: (469) 854-8920. Providers update this record themselves, so call before visiting.

How can I verify Clyde Sullivan, M.D.'s license?

NPPES lists Texas license number N6695, 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 Clyde Sullivan, M.D. prescribe under Medicare Part D?

In 2024, Clyde Sullivan, M.D. had 1,265 Medicare Part D claims for 200 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.