Marc E. Delclos, M.D.
Radiation Oncology Physician · Houston, TX
Marc E. Delclos, M.D. is a radiation oncology physician with a practice address in Houston, Texas, and NPI 1750497665, issued on Aug 22, 2006. Check the license (Texas J4079, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marc E. Delclos
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- J4079 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1515 Holcombe Blvd, Houston, TX 77030
- Phone
- (713) 792-6161
- Enumerated
- Aug 22, 2006
- Record last updated
- Sep 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 117949102 TX
- Medicare enrollment
- Enrolled (PECOS I20101022000553); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in Texas → Look up another NPI →
Also registered at 1515 Holcombe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Aaroe, MDNeurology Physician1902295793
- Linda Abad, PA-CPhysician Assistant1063928240
- Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
- Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
- James Abbruzzese, M.D.Medical Oncology Physician1134233224
- Karim Abdeldaem, MDEmergency Medicine Physician1558056200
Verify Marc E. Delclos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J4079Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average radiation oncology physician in 2024
12 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 81.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Physicians Referral ServiceConroe, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc E. Delclos among 449 radiation oncology physician records in Texas
Marc E. Delclos, M.D. is one of 449 radiation oncology physician records with a practice address in Texas. 85% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1992 · median 2004 among the 348 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Texas
There are 449 radiation oncology physician records in Texas.
All 449 in Texas → Every provider in Houston → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Neelofur Ahmad, M.D.Houston, TX 770301154320976
- Edward Butler, M.D.Houston, TX 770301679565972
- Aileen Chen, MDHouston, TX 770301801876560
- Seungtaek Choi, M.D.Houston, TX 770301205860590
- Gregory Chronowski, M.D.Houston, TX 770301598789570
- Amol Ghia, M.D.Houston, TX 770301629030291
- Beverly Guadagnolo, M.D., MPHHouston, TX 770301407866676
- Joseph Herman, M.D.Houston, TX 770301346291465
Common questions
What is Marc E. Delclos, M.D.'s NPI number?
Marc E. Delclos, M.D.'s National Provider Identifier (NPI) is 1750497665, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc E. Delclos, M.D. located?
The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.
How can I verify Marc E. Delclos, M.D.'s license?
NPPES lists Texas license number J4079, 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 Marc E. Delclos, M.D. prescribe under Medicare Part D?
In 2024, Marc E. Delclos, M.D. had 12 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Marc E. Delclos, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.4 of 100, reported for the practice group. 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.