William Desimone, M.D.
Family Medicine Physician · Katy, TX
William Desimone, M.D. is a family medicine physician with a practice address in Katy, Texas, and NPI 1831501949, issued on May 22, 2014. Check the license (Texas R0217, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Desimone
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R0217 TX
Self-reported in NPPES; status is on the state search - Practice location
- 21700 Kingsland Blvd Ste 201, Katy, TX 77450
- Phone
- (281) 398-7954
- Enumerated
- May 22, 2014
- Record last updated
- Nov 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (281) 578-7425
- Medicare enrollment
- Enrolled (PECOS I20170523000631); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 21700 Kingsland Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Colletti, MDFamily Medicine Physician1053874149
- Syed Madni, MDInternal Medicine Physician1427222389
Verify William Desimone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R0217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
11,006 Medicare Part D claims for 575 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 88 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium841 claims
- Levothyroxine Sodium479 claims
- Amlodipine Besylate445 claims
- Atorvastatin Calcium427 claims
- Metformin Hcl Er420 claims
- Lisinopril375 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: $2,796.17
112 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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 2 group practices
- Legacy Healthcare Services IncLewisville, TX
- Medical Colleagues OF Texas LLPKaty, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Desimone among 11,119 family medicine physician records in Texas
William Desimone, 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 2014, is newer than 73% of them.
- NPI issued2014 · 73% of these records are older, 25% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2013 · median 2004 among the 7,095 with a school on file
- Record last updated2018 · 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).
109 family medicine physician records list a practice address in Katy
They are 109 of the 5,078 NPPES records with a practice address in Katy, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Katy → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shamim Ali, M.D.Katy, TX 774501003816315
- Ahmad-Rabia Alkhush, M.D.Katy, TX 774501821080714
- Elizabeth Alvarez, M.D.Katy, TX 774501457358293
- Roy Gillick, MDKaty, TX 774501245224104
- Armando Jarquin, MDKaty, TX 774501326043860
- Christian Ogbebor, MDKaty, TX 774501285728410
- Nimesh Patel, M.D.Katy, TX 774501194839753
- Severino Pimentel, M.D.Katy, TX 774501003844820
Common questions
What is William Desimone, M.D.'s NPI number?
William Desimone, M.D.'s National Provider Identifier (NPI) is 1831501949, issued on May 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Desimone, M.D. located?
The NPPES record lists a practice address at 21700 Kingsland Blvd Ste 201, Katy, TX, 77450. Phone: (281) 398-7954. Providers update this record themselves, so call before visiting.
How can I verify William Desimone, M.D.'s license?
NPPES lists Texas license number R0217, 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 Desimone, M.D. prescribe under Medicare Part D?
In 2024, William Desimone, M.D. had 11,006 Medicare Part D claims for 575 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.