Gregg Ceniza Castillo, M.D.
Family Medicine Physician · Houston, TX
Gregg Ceniza Castillo, M.D. is a family medicine physician with a practice address in Houston, Texas, and NPI 1508928185, issued on Dec 13, 2006. Check the license (Texas M4728, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregg Ceniza Castillo
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M4728 TX
Self-reported in NPPES; status is on the state search - Practice location
- 13176 W Lake Houston Pkwy, Houston, TX 77044
- Phone
- (281) 436-0061
- Enumerated
- Dec 13, 2006
- Record last updated
- Aug 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (281) 436-1128
- Medicare enrollment
- Enrolled (PECOS I20080520000285); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2004
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 13176 W Lake Houston Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Castillo, M.D.Family Medicine Physician1922247881
- Cesario Castillo, M.D.Family Medicine Physician1447357439
Verify Gregg Ceniza Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M4728Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average family medicine physician in 2024
3,915 Medicare Part D claims for 282 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. 71 claims were for opioids.
Most prescribed
- Atorvastatin Calcium316 claims
- Losartan Potassium169 claims
- Amlodipine Besylate165 claims
- Lisinopril118 claims
- Levothyroxine Sodium107 claims
- Metformin Hcl95 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: $13.34
1 payment: food and beverage; the largest payer was Pfizer Inc. 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.
Gregg Ceniza Castillo among 11,119 family medicine physician records in Texas
Gregg Ceniza Castillo, 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
- Graduated2004 · 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).
1,123 family medicine physician records list a practice address in Houston
They are 1,123 of the 61,221 NPPES records with a practice address in Houston, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Houston → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Justin Bogwu, M.D.Houston, TX 770441245550656
- Dalton Carter, MDHouston, TX 770441124656715
- Cesario Castillo, M.D.Houston, TX 770441447357439
- Brian Castillo, M.D.Houston, TX 770441922247881
- Claire Kim, D.O.Houston, TX 770441992048979
- Chimere Nnaji, MDHouston, TX 770441013657741
- Derek Timbs, RN MSN FNPHouston, TX 770441609886910
- Zeba Barlas, M.D.Houston, TX 770451285642546
Common questions
What is Gregg Ceniza Castillo, M.D.'s NPI number?
Gregg Ceniza Castillo, M.D.'s National Provider Identifier (NPI) is 1508928185, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregg Ceniza Castillo, M.D. located?
The NPPES record lists a practice address at 13176 W Lake Houston Pkwy, Houston, TX, 77044. Phone: (281) 436-0061. Providers update this record themselves, so call before visiting.
How can I verify Gregg Ceniza Castillo, M.D.'s license?
NPPES lists Texas license number M4728, 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 Gregg Ceniza Castillo, M.D. prescribe under Medicare Part D?
In 2024, Gregg Ceniza Castillo, M.D. had 3,915 Medicare Part D claims for 282 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.