Dr. William F. Regine, MD

  • Baltimore, MD
  • Radiation oncologist
NPI1104831957PAC ID3274510987
Medicare services, 2024
587
Medicare patients, 2024
172
Publications
77
Clinical trials
3
Hospital affiliations
1
Practice address
850 W Baltimore St, Baltimore, MD 21201
Practice phone
Call (410) 369-5200
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Maryland Proton Treatment Center

Baltimore, Maryland

See all 4 affiliations

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Dr. William F. Regine is a radiation oncologist in Baltimore, Maryland

Dr. Regine practices at Maryland Proton Treatment Center in Baltimore, Maryland.

Dr. Regine's NPI, 1104831957, was assigned on July 30, 2006. Dr. Regine holds Maryland license D0059557.

NPI and contact details
Medicare PAC ID
3274510987
NPI enumeration date
July 30, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(410) 369-5200
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
65
Medical school graduation
1987

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William F. Regine practices at Maryland Proton Treatment Center in Baltimore, Maryland

Dr. Regine's primary practice is Maryland Proton Treatment Center, at 850 W Baltimore St, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 369-5200.

  • Maryland Proton Treatment Center
    850 W Baltimore St, Baltimore, MD 21201 · Baltimore CityPhone(410) 369-5200

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. William F. Regine is affiliated with 2 sites of care and 2 medical groups

Dr. Regine's primary practice is Maryland Proton Treatment Center in Baltimore, Maryland. Dr. Regine is also affiliated with University of Maryland Medical Center. The medical group on file is UM Community Medical Group. Dmand AI also links Dr. Regine to 1 more medical group, named with a free account.

See all 4 affiliations for Dr. Regine

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William F. Regine's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Regine practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Maryland Proton Treatment CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William F. Regine is one of 100 radiation oncologists in Maryland

Radiation oncology is Dr. Regine's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Regine is licensed in Maryland.

Specialties and state licenses

  • Radiation oncology, MarylandPrimaryLicense D0059557 · taxonomy 2085R0001X

Radiation oncologists near Dr. Regine

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. William F. Regine billed Medicare for 587 services in 2024

CMS data shows 587 Medicare services from Dr. Regine across 12 procedure codes in 2024, for 172 Medicare patients. Medicare paid $241,969 for them.

Medicare services, 2024587
Medicare patients172
Paid by Medicare$241,969
Procedure codes12

Dr. Regine's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 9762024: 56442%
Other services
2023: 2232024: 2390%
Office and hospital visits
2023: 112024: 0100%

Where Dr. Regine's Medicare services took place, 2024

  • In an office57598%
  • In a facility122%

Dr. Regine compared with the Maryland median for radiation oncologists, 2024

  • Dr. Regine
  • Maryland median
Medicare services
587vs 2,07672% below
Medicare patients
172vs 24028% below

Medians across 93 radiation oncologists in Maryland with Dmand AI profiles that report each measure.

Dr. Regine's 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.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William F. Regine treated 172 Medicare patients in 2024, average age 73

CMS counts 172 Medicare patients who saw Dr. Regine in 2024. The largest group is 65 to 74, with 101 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.90, 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. Regine's median patient age at 59, with 46% women.

Medicare patients, 2024172
Average age73
Average risk score1.90
Also on Medicaid12%

Dr. Regine's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Regine's Medicare patients by sex, 2024

  • Women9153%
  • Men8147%

Chronic conditions among Dr. Regine's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer64%
  4. Arthritis44%
  5. Chronic kidney disease30%
  6. Ischemic heart disease30%
  7. Diabetes28%
  8. Anxiety27%

Share of Medicare patients with each condition. A patient can have several.

Dr. Regine's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women46%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. William F. Regine takes part in Medicare

Dr. Regine accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. William F. Regine has 77 publications on record

Dmand AI links 77 papers to Dr. Regine, published from 2006 to 2024. 2023 was the busiest year, with 7. The most frequent topics are Pancreatic Neoplasms, Radiotherapy Planning, Computer-Assisted and Radiotherapy, Intensity-Modulated. Dr. Regine has published most often in Int J Radiat Oncol Biol Phys. Dr. Regine's most frequent co-authors are Jason Kyle Molitoris, MD, Steven Joel Feigenberg, MD and Charles Brian Simone, MD.

Papers77
Years published2006 to 2024

Dr. Regine's papers by year, 2015 to 2024

Topics Dr. Regine writes about most

  • Pancreatic Neoplasms
  • Radiotherapy Planning, Computer-Assisted
  • Radiotherapy, Intensity-Modulated
  • Proton Therapy
  • Adenocarcinoma
  • Deoxycytidine
  • Gemcitabine
  • Radiotherapy Dosage

Dr. Regine's most frequent co-authors

Recent publications by Dr. Regine

See all 77 publications and co-authors

See who Dr. Regine researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Regine works with, so you can find a warm path to the right radiation oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. William F. Regine has worked on 3 clinical trials

Dmand AI links Dr. Regine to 3 clinical trials. 1 is still active or recruiting. Conditions studied include Diabetes Mellitus, Insulin-Dependent, 12, Pancreatic Intraductal Neoplasms and Pancreatic Neoplasms. University of Maryland, Baltimore sponsors the most, 2.

Clinical trials with Dr. Regine by phase

  1. 1Early phase 1: 1 trial
  2. NonePhase 1: no trials
  3. 1Phase 1/2: 1 trial
  4. NonePhase 2: no trials
  5. 1Phase 3: 1 trial
  6. NonePhase 4: no trials

Conditions in Dr. Regine's trials

  • Diabetes Mellitus, Insulin-Dependent, 12
  • Pancreatic Intraductal Neoplasms
  • Pancreatic Neoplasms
  • Neoplasms, Ductal, Lobular, and Medullary
  • Pancreatic Diseases

Investigators on the most trials with Dr. Regine

Recent clinical trials with Dr. Regine

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. William F. Regine received $24,966 in industry payments from 2016 to 2025

CMS Open Payments shows 52 general payments to Dr. Regine from 7 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 51% of the total. Varian Medical Systems, Inc. paid the most, $21,740.

General payments to Dr. Regine by program year, 2016 to 2025

General payments to Dr. Regine by kind, 2016 to 2025

$25Kin total
  • Travel and lodging$12,62151%
  • Speaker and faculty fees$5,07920%
  • Honoraria$4,00016%
  • Food and beverage$1,4816%
  • Other$1,7857%

Companies that paid Dr. Regine the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Regine

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. William F. Regine's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William F. Regine

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. William F. Regine's NPI number?

Dr. William F. Regine's NPI number is 1104831957. It was assigned on July 30, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William F. Regine?

Dr. William F. Regine is a radiation oncologist in Baltimore, Maryland. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. William F. Regine practice?

Dr. Regine practices at 850 W Baltimore St, Baltimore, MD 21201. Dr. Regine's primary practice is Maryland Proton Treatment Center in Baltimore, Maryland. Dmand AI also links Dr. Regine to 1 medical group.

What is Dr. William F. Regine's office phone number?

The practice phone on file for Dr. Regine is (410) 369-5200.

What is Dr. William F. Regine's medical license number?

Dr. Regine holds Maryland license D0059557.

Which hospitals is Dr. William F. Regine affiliated with?

Dr. Regine is affiliated with University of Maryland Medical Center.

What medical group is Dr. William F. Regine part of?

Dr. Regine is linked to UM Community Medical Group. Dmand AI links Dr. Regine to 1 more medical group.

Does Dr. William F. Regine accept Medicare?

Yes. CMS data shows Dr. Regine billed Medicare for 587 services in 2024, and Dr. Regine accepts Medicare assignment.

How many Medicare patients does Dr. William F. Regine see?

CMS counts 172 Medicare patients who saw Dr. Regine in 2024, with an average age of 73.

What services does Dr. William F. Regine bill to Medicare?

In 2024, Dr. Regine's most billed Medicare services were radiation oncology (77523), radiation oncology (77014) and radiation oncology (77336).

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Has Dr. William F. Regine received payments from drug or device companies?

CMS Open Payments shows $24,966 in general payments to Dr. Regine from 7 companies from 2016 to 2025. The largest total came from Varian Medical Systems, Inc.

How long has Dr. William F. Regine been practicing?

Dr. Regine graduated from medical school in 1987, 39 years ago.

Does Dr. William F. Regine do research?

Dmand AI links 77 publications to Dr. Regine, published from 2006 to 2024. Dr. Regine has worked on 3 clinical trials.

Who does Dr. William F. Regine publish with?

Dr. Regine's most frequent co-authors are Jason Kyle Molitoris, MD (13 shared papers), Steven Joel Feigenberg, MD (10 shared papers) and Charles Brian Simone, MD (9 shared papers).

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