Dr. Marc E. Delclos, MD
- Medicare services, 2024
- 3,120
- Medicare patients, 2024
- 210
- Part D claims, 2024
- 12
- Publications
- 67
- MIPS score, 2024
- 84
- Practice address
- 1515 Holcombe Blvd, Houston, TX 77030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Delclos' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Marc E. Delclos is a radiation oncologist in Houston, Texas
Dr. Delclos practices at The University of Texas MD Anderson Cancer Center in Houston, Texas, part of The University of Texas System.
Dr. Delclos' NPI, 1750497665, was assigned on August 22, 2006. Dr. Delclos graduated from Baylor College Of Medicine in 1992. Dr. Delclos' Texas license number on file is J4079.
- NPI
- 1750497665NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698968683
- NPI enumeration date
- August 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc E. Delclos practices at The University of Texas MD Anderson Cancer Center in Houston, Texas
Dr. Delclos' primary practice is The University of Texas MD Anderson Cancer Center, at 1515 Holcombe Blvd, Houston, TX 77030.
- The University of Texas MD Anderson Cancer Center1515 Holcombe Blvd, Houston, TX 77030
Source: Dmand AI Affiliation Data
Dr. Marc E. Delclos is affiliated with 1 site of care and 2 medical groups
Dr. Delclos' primary practice is The University of Texas MD Anderson Cancer Center in Houston, Texas, part of The University of Texas System. The medical group on file is Physicians Referral Service. Dmand AI also links Dr. Delclos to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marc E. Delclos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Delclos practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Texas MD Anderson Cancer Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc E. Delclos is one of 401 radiation oncologists in Texas
Radiation oncology is Dr. Delclos' primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Delclos is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Delclos' licenses on file in 3 states: Texas, Florida and Oklahoma.
Specialties and state licenses
- Radiation oncology, TexasPrimary
- Florida license
- Oklahoma license
Clinical focus
Dmand AI lists bone cancer radiation, cancer radiation-upper GI, colorectal cancer radiation, lung cancer radiation, pancreatic cancer radiation and prostate cancer radiation among the conditions Dr. Delclos treats.
Radiation oncologists near Dr. Delclos
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Marc E. Delclos billed Medicare for 3,120 services in 2024
CMS data shows 3,120 Medicare services from Dr. Delclos across 17 procedure codes in 2024, for 210 Medicare patients. Medicare paid $186,643 for them. Every service was in an office.
Dr. Delclos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1,4412024: 1,5719%
- Imaging
- 2023: 1,6772024: 1,34020%
- Office and hospital visits
- 2023: 1452024: 20944%
Dr. Delclos compared with the Texas median for radiation oncologists, 2024
- Dr. Delclos
- Texas median
- Medicare services
- 3,120vs 1,4722.1 times
- Medicare patients
- 210vs 16428% above
- Part D claims
- 12vs 4171% below
Medians across 370 radiation oncologists in Texas with Dmand AI profiles that report each measure.
Dr. Delclos' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Delclos?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Delclos and other radiation oncologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marc E. Delclos treated 210 Medicare patients in 2024, average age 74
CMS counts 210 Medicare patients who saw Dr. Delclos in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Delclos' median patient age at 74, with 23% women.
Dr. Delclos' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Delclos' Medicare patients by sex, 2024
- Women6330%
- Men14770%
Chronic conditions among Dr. Delclos' Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Ischemic heart disease41%
- Diabetes32%
- COPD29%
- Anxiety26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Delclos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women23%
- Men75%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc E. Delclos wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Delclos wrote 12 Medicare Part D claims. They cover 1 drug, with $170 in total drug cost. In 2018, CMS named 15 claims across 1 drug.
Dr. Delclos' most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2022
- 2018
- 2022
- Claims for drugs CMS names
- 2018: 152022: 1220%
Drugs named by CMS: 1 in 2022, 1 in 2018.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Marc E. Delclos scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Delclos for performance year 2024, reported as part of a group. Dr. Delclos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Delclos as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Delclos' MIPS scores, performance year 2024
- 84of 100Final score
- 70.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 68of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Marc E. Delclos has 67 publications on record
Dmand AI links 67 papers to Dr. Delclos, published from 2006 to 2021. 2011 was the busiest year, with 8. The most frequent topics are Radiotherapy Dosage, Fluorouracil and Antineoplastic Combined Chemotherapy Protocols. Dr. Delclos has published most often in Int J Radiat Oncol Biol Phys. Dr. Delclos' most frequent co-authors are Prajnan Das, MD, MPH, Sunil Krishnan, MD and Miguel A. Rodriguez-Bigas, MD.
Dr. Delclos' papers by year, 2009 to 2021
Topics Dr. Delclos writes about most
- Radiotherapy Dosage
- Fluorouracil
- Antineoplastic Combined Chemotherapy Protocols
- Rectal Neoplasms
- Adenocarcinoma
- Deoxycytidine
- Anus Neoplasms
- Capecitabine
Dr. Delclos' most frequent co-authors
- Prajnan Das, MD, MPH33 shared papers
- Sunil Krishnan, MD29 shared papers
- Miguel A. Rodriguez-Bigas, MD18 shared papers
Recent publications by Dr. Delclos
See who Dr. Delclos researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Delclos works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marc E. Delclos received $383 in industry payments from 2017 to 2023
CMS Open Payments shows 4 general payments to Dr. Delclos from 4 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $125.
General payments to Dr. Delclos by program year, 2017 to 2023
Companies that paid Dr. Delclos the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marc E. Delclos graduated from Baylor College Of Medicine
Dr. Delclos graduated from Baylor College Of Medicine in 1992.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Marc E. Delclos accepts plans from 11 insurance carriers
Dr. Delclos is in network with 11 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Cigna
- Elevance
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +3 more carriersWith a free account
Plan types Dr. Delclos accepts, by number of carriers
- PPO8
- HMO6
- Medicare6
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Marc E. Delclos's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marc E. Delclos
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Marc E. Delclos' NPI number?
Dr. Marc E. Delclos' NPI number is 1750497665. It was assigned on August 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc E. Delclos?
Dr. Marc E. Delclos is a radiation oncologist in Houston, Texas. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Marc E. Delclos practice?
Dr. Delclos practices at 1515 Holcombe Blvd, Houston, TX 77030. Dr. Delclos' primary practice is The University of Texas MD Anderson Cancer Center in Houston, Texas, part of The University of Texas System. Dmand AI also links Dr. Delclos to 1 medical group.
What is Dr. Marc E. Delclos' medical license number?
Dr. Delclos' Texas license number on file is J4079, one of the licenses on file in 3 states.
Which states has Dr. Marc E. Delclos been licensed in?
Dmand AI has state licenses on file for Dr. Delclos in Texas (1993 to 2025), Florida (since 2021) and Oklahoma (2020 to 2021).
Which hospitals is Dr. Marc E. Delclos affiliated with?
Dr. Delclos practices at The University of Texas MD Anderson Cancer Center in Houston, Texas.
What medical group is Dr. Marc E. Delclos part of?
Dr. Delclos is linked to Physicians Referral Service. Dmand AI links Dr. Delclos to 1 more medical group.
Does Dr. Marc E. Delclos accept Medicare?
Yes. CMS data shows Dr. Delclos billed Medicare for 3,120 services in 2024, and Dr. Delclos accepts Medicare assignment.
Does Dr. Marc E. Delclos offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Delclos as offering telehealth services.
What is Dr. Marc E. Delclos' MIPS score?
Dr. Delclos' MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Marc E. Delclos see?
CMS counts 210 Medicare patients who saw Dr. Delclos in 2024, with an average age of 74.
Is Dr. Marc E. Delclos board certified?
Yes. Dr. Delclos is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. Marc E. Delclos bill to Medicare?
In 2024, Dr. Delclos' most billed Medicare services were medicare service (G6002), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Marc E. Delclos go to medical school?
Dr. Delclos graduated from Baylor College Of Medicine in 1992.
What drugs does Dr. Marc E. Delclos prescribe most?
In 2022 Medicare Part D data, Dr. Delclos' most prescribed drugs by claims were Alfuzosin HCl ER.
Has Dr. Marc E. Delclos received payments from drug or device companies?
CMS Open Payments shows $383 in general payments to Dr. Delclos from 4 companies from 2017 to 2023. The largest total came from Astellas Pharma US Inc.
How long has Dr. Marc E. Delclos been practicing?
Dr. Delclos graduated from medical school in 1992, 34 years ago.
Does Dr. Marc E. Delclos do research?
Dmand AI links 67 publications to Dr. Delclos, published from 2006 to 2021.
Who does Dr. Marc E. Delclos publish with?
Dr. Delclos' most frequent co-authors are Prajnan Das, MD, MPH (33 shared papers), Sunil Krishnan, MD (29 shared papers) and Miguel A. Rodriguez-Bigas, MD (18 shared papers).
What insurance does Dr. Marc E. Delclos accept?
Dr. Delclos is in network with 11 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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