William Mattew Dennis, M.D.
Family Medicine Physician · Corpus Christi, TX
William Mattew Dennis, M.D. is a family medicine physician with a practice address in Corpus Christi, Texas, and NPI 1427166503, issued on Aug 28, 2006. Check the license (Texas F5517, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Mattew Dennis
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- F5517 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3301 South Alameda, Corpus Christi, TX 78411
- Phone
- (361) 658-4710
- Enumerated
- Aug 28, 2006
- Record last updated
- Mar 26, 2026
- Fax
- (361) 857-8321
- Medicaid ID
- 128651007 TX
- Medicare enrollment
- Enrolled (PECOS I20100918000301); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Verify William Mattew Dennis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license F5517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average family medicine physician in 2024
3,864 Medicare Part D claims for 503 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 33 claims were for opioids.
Most prescribed
- Omeprazole257 claims
- Losartan Potassium178 claims
- Levothyroxine Sodium177 claims
- Atorvastatin Calcium147 claims
- Metformin Hcl138 claims
- Amlodipine Besylate125 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $464.16
27 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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 3 group practices
- Amistad Community Health Center IncorporatedCorpus Christi, TX
- Conviva Medical Center Management OF Texas, P.A.Corpus Christi, TX
- Shea Physical Therapy Specialists LLCCorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Mattew Dennis among 11,119 family medicine physician records in Texas
William Mattew Dennis, M.D. is one of 11,119 family medicine physician records with a practice address in Texas. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1978 · median 2004 among the 7,095 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
193 family medicine physician records list a practice address in Corpus Christi
They are 193 of the 5,600 NPPES records with a practice address in Corpus Christi, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Corpus Christi → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Bowen, D.O.Corpus Christi, TX 784111184698912
- Ralph Cicora, D.O.Corpus Christi, TX 784111053390088
- Richard Davis, M.D.Corpus Christi, TX 784111174599252
- Danny Dubberly, MDCorpus Christi, TX 784111063402386
- Ronald Garrett-Roe, M.D.Corpus Christi, TX 784111053311647
- Francois Lesage, M.D.Corpus Christi, TX 784111356334494
- Oscar Lightner, MDCorpus Christi, TX 784111457320558
- Jonathan Martin, M.D.Corpus Christi, TX 784111831179191
Common questions
What is William Mattew Dennis, M.D.'s NPI number?
William Mattew Dennis, M.D.'s National Provider Identifier (NPI) is 1427166503, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Mattew Dennis, M.D. located?
The NPPES record lists a practice address at 3301 South Alameda, Corpus Christi, TX, 78411. Phone: (361) 658-4710. Providers update this record themselves, so call before visiting.
How can I verify William Mattew Dennis, M.D.'s license?
NPPES lists Texas license number F5517, 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 William Mattew Dennis, M.D. prescribe under Medicare Part D?
In 2024, William Mattew Dennis, M.D. had 3,864 Medicare Part D claims for 503 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is William Mattew Dennis, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.