Cesar A. De Las Casas, M.D.
Hematology & Oncology Physician · Houston, TX
Cesar A. De Las Casas, M.D. is a hematology & oncology physician with a practice address in Houston, Texas, and NPI 1184711798, issued on Oct 6, 2006. Check the license (Texas L6857, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cesar A. De Las Casas
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- L6857 TX
ME123692 FL
Self-reported in NPPES; status is on the state search - Practice location
- 925 Gessner RD Ste 600, Houston, TX 77024
- Phone
- (713) 827-9525
- Enumerated
- Oct 6, 2006
- Record last updated
- May 27, 2026
- Fax
- (713) 468-3561
- Medicaid IDs
- 183719701 TX
175877303 TX
175877302 TX
014821000 FL - Medicare enrollment
- Enrolled (PECOS I20150715000288); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 925 Gessner RD Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ricardo Alvarez, MDMedical Oncology Physician1649441601
- Luis Campos, M. D.Medical Oncology Physician1578524765
- Linh LuongFamily Nurse Practitioner1053921171
- Nicky Nguyen, PA-CPhysician Assistant1861195547
- Yen Nguyen, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1023694189
- Jigna Patel, PHARMDPharmacist1881922714
Verify Cesar A. De Las Casas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L6857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
294 Medicare Part D claims for 68 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 30 claims were for opioids.
Most prescribed
- Anastrozole41 claims
- Prochlorperazine Maleate26 claims
- Eliquis18 claims
- Hydroxyurea18 claims
- Hydrocodone-Acetaminophen15 claims
- Ondansetron Odt15 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: $977.07
43 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Halifax Healthcare Systems IncPort Orange, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in Texas
There are 922 hematology & oncology physician records in Texas.
Other hematology & oncology physician records in Texas
- Kanza Abbas, M.D.Houston, TX1396065934
- Elham Abbasi-Hafshejani, M.D.The Woodlands, TX1306856513
- Raghad Abdul-Karim, MDMcAllen, TX1114207172
- Seyed Abedi, M.D.,PH.D.Cedar Park, TX1033567409
- Muhammad Abid, M.D.Lubbock, TX1639480437
- Ambrose Aboud, MDEl Paso, TX1407843873
- Hesham Abowali, MDGalveston, TX1447806955
- Joel Abramowitz, M.D., PHDHouston, TX1447220413
- Hussna Abunafeesa, M.DDallas, TX1902338726
- Prashanth Adapala, M.D.Marble Falls, TX1740484336
Common questions
What is Cesar A. De Las Casas, M.D.'s NPI number?
Cesar A. De Las Casas, M.D.'s National Provider Identifier (NPI) is 1184711798, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cesar A. De Las Casas, M.D. located?
The NPPES record lists a practice address at 925 Gessner RD Ste 600, Houston, TX, 77024. Phone: (713) 827-9525. Providers update this record themselves, so call before visiting.
How can I verify Cesar A. De Las Casas, M.D.'s license?
NPPES lists Texas license number L6857, 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 Cesar A. De Las Casas, M.D. prescribe under Medicare Part D?
In 2024, Cesar A. De Las Casas, M.D. had 294 Medicare Part D claims for 68 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.