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Dr. Richard C. Zellars, MD
NPI1467488767PAC ID5496886244
- Medicare services, 2023
- 21
- Medicare patients, 2024
- 23
- Publications
- 41
- Clinical trials
- 4
- Hospital affiliations
- 1
- Practice address
- 1701 N Senate Blvd, Indianapolis, IN 46202
- Practice phone
- Call (317) 962-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zellars' 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. Richard C. Zellars is a radiation oncologist in Indianapolis, Indiana
Dr. Zellars practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.
Dr. Zellars' NPI, 1467488767, was assigned on June 25, 2006. Dr. Zellars graduated from Johns Hopkins University School of Medicine in 1991. Dr. Zellars holds Indiana license 01075189A.
NPI and contact details
- NPI
- 1467488767NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496886244
- NPI enumeration date
- June 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 962-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard C. Zellars practices at IU Health Methodist Hospital in Indianapolis, Indiana
Dr. Zellars' primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.
- IU Health Methodist Hospital1701 N Senate Blvd, Indianapolis, IN 46202 · Marion CountyPhone(317) 962-2000
Source: Dmand AI Affiliation Data
Dr. Richard C. Zellars is affiliated with 4 sites of care and 2 medical groups
Dr. Zellars' primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Zellars to 2 more group practices and clinics, 1 behavioral health center and 1 medical group, each named with a free account.
IU Health Medical Group2 group practices and clinicsNames with a free account1 behavioral health centerName with a free account1 medical groupName with a free account
See all 6 affiliations for Dr. ZellarsSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Richard C. Zellars' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zellars practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Methodist Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard C. Zellars is one of 121 radiation oncologists in Indiana
Radiation oncology is Dr. Zellars' primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Zellars' licenses on file in 2 states: Indiana and Maryland.
Specialties and state licenses
- Radiation oncology, IndianaPrimary
- Maryland license
Radiation oncologists near Dr. Zellars
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
121radiation oncologists in Indiana35radiation oncologists in Indianapolis17radiation oncologists at IU Health Methodist Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Richard C. Zellars billed Medicare for 21 services in 2023
CMS data shows 21 Medicare services from Dr. Zellars across 1 procedure code in 2023, all of them office visits, for 23 Medicare patients. Medicare paid $746 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202321
Medicare patients23
Paid by Medicare$746
Procedure codes1
Dr. Zellars' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 02023: 21
- Imaging
- 2022: 112023: 0100%
Dr. Zellars compared with the Indiana median for radiation oncologists, 2023
- Dr. Zellars
- Indiana median
- Medicare services
- 21vs 1,41699% below
- Medicare patients
- 23vs 19288% below
Medians across 120 radiation oncologists in Indiana with Dmand AI profiles that report each measure.
Dr. Zellars' most billed Medicare procedure codes, 2023
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. Zellars?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zellars and other radiation oncologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard C. Zellars treated 23 Medicare patients in 2024, average age 71
CMS counts 23 Medicare patients who saw Dr. Zellars in 2024. 75% of them have cancer, and 74% have high cholesterol. Their average risk score is 1.52, 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. Zellars' median patient age at 62, with 94% women.
Medicare patients, 202423
Average age71
Average risk score1.52
Chronic conditions among Dr. Zellars' Medicare patients, 2024
- Cancer75%
- High cholesterol74%
- High blood pressure70%
- Anxiety48%
- Depression48%
- Mood disorders48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zellars' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women94%
- Men6%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Richard C. Zellars takes part in Medicare
Dr. Zellars 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. Richard C. Zellars has 41 publications on record
Dmand AI links 41 papers to Dr. Zellars, published from 2009 to 2024. 2019 was the busiest year, with 5. The most frequent topics are Breast Neoplasms, Radiation Oncology and Radiotherapy, Adjuvant. Dr. Zellars has published most often in Adv Radiat Oncol. Dr. Zellars' most frequent co-authors are Kevin Ren-Yeh Shiue, MD, Namita Agrawal, MD and Jordan Alexander Holmes, MD.
Papers41
Years published2009 to 2024
Dr. Zellars' papers by year, 2013 to 2024
Topics Dr. Zellars writes about most
- Breast Neoplasms
- Radiation Oncology
- Radiotherapy, Adjuvant
- Internship and Residency
- Lung Neoplasms
- Radiosurgery
- Carcinoma, Non-Small-Cell Lung
- Efficiency
Dr. Zellars' most frequent co-authors
- Kevin Ren-Yeh Shiue, MD7 shared papers
- Namita Agrawal, MD6 shared papers
- Jordan Alexander Holmes, MD6 shared papers
Recent publications by Dr. Zellars
J Appl Clin Med Phys
Clinical CompetenceHealth PhysicsQuality Improvement
See who Dr. Zellars researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zellars 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. Richard C. Zellars has worked on 4 clinical trials
Dmand AI links Dr. Zellars to 4 clinical trials. 2 are still active or recruiting. Conditions studied include Breast Neoplasms, Breast Diseases and Inflammatory Breast Neoplasms. Richard Zellars sponsors the most, 2.
Clinical trials with Dr. Zellars by phase
- 1Phase 1: 1 trial
- 1Phase 2: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Trials with no phase (devices, behavioral studies) are left out.
Conditions in Dr. Zellars' trials
- Breast Neoplasms
- Breast Diseases
- Inflammatory Breast Neoplasms
Investigators on the most trials with Dr. Zellars
- Melissa Suzanne Camp, MD2 shared trials
- Nita Ahuja, MD1 shared trial
- Deborah K. Armstrong, MD1 shared trial
Recent clinical trials with Dr. Zellars
A Phase II Randomized Trial of Olaparib (NSC-747856) Administered Concurrently With Radiotherapy Versus Radiotherapy Alone for Inflammatory Breast Cancer (opens in a new tab)
Active, not recruitingPhase 2
Inflammatory Breast NeoplasmsBreast NeoplasmsOlaparibRadiation Therapy
Breast NeoplasmsBreast DiseasesRadiation therapy
Partial Irradiation and Sequential vs. Concurrent Chemo Early Breast Cancer (opens in a new tab)
Active, not recruiting
Breast NeoplasmsBreast Diseases
Breast NeoplasmsBreast DiseasesVeliparibRadiation
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Richard C. Zellars received $3,305 in industry payments from 2016 to 2024
CMS Open Payments shows 23 general payments to Dr. Zellars from 5 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 53% of the total. Elekta, Inc. paid the most, $2,975.
General payments to Dr. Zellars by program year, 2016 to 2024
General payments to Dr. Zellars by kind, 2016 to 2024
$3.3Kin total
- Travel and lodging$1,76053%
- Food and beverage$1,52946%
- Entertainment$160%
Companies that paid Dr. Zellars the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard C. Zellars graduated from Johns Hopkins University School of Medicine
Dr. Zellars graduated from Johns Hopkins University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard C. Zellars'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Richard C. Zellars
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. Richard C. Zellars' NPI number?
Dr. Richard C. Zellars' NPI number is 1467488767. It was assigned on June 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard C. Zellars?
Dr. Richard C. Zellars is a radiation oncologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Richard C. Zellars practice?
Dr. Zellars practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Zellars' primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Zellars to 2 group practices and clinics, 1 behavioral health center and 1 medical group.
What is Dr. Richard C. Zellars' office phone number?
The practice phone on file for Dr. Zellars is (317) 962-2000.
What is Dr. Richard C. Zellars' medical license number?
Dr. Zellars holds Indiana license 01075189A, one of the licenses on file in 2 states.
Which states has Dr. Richard C. Zellars been licensed in?
Dmand AI has state licenses on file for Dr. Zellars in Indiana and Maryland.
Which hospitals is Dr. Richard C. Zellars affiliated with?
Dr. Zellars practices at IU Health Methodist Hospital in Indianapolis, Indiana.
What medical group is Dr. Richard C. Zellars part of?
Dr. Zellars is linked to IU Health Medical Group. Dmand AI links Dr. Zellars to 1 more medical group.
Does Dr. Richard C. Zellars accept Medicare?
Yes. CMS data shows Dr. Zellars billed Medicare for 21 services in 2023, and Dr. Zellars accepts Medicare assignment.
How many Medicare patients does Dr. Richard C. Zellars see?
CMS counts 23 Medicare patients who saw Dr. Zellars in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
What services does Dr. Richard C. Zellars bill to Medicare?
In 2023, Dr. Zellars' most billed Medicare services were office visit, established patient (99213).
Where did Dr. Richard C. Zellars go to medical school?
Dr. Zellars graduated from Johns Hopkins University School of Medicine in 1991.
Has Dr. Richard C. Zellars received payments from drug or device companies?
CMS Open Payments shows $3,305 in general payments to Dr. Zellars from 5 companies from 2016 to 2024. The largest total came from Elekta, Inc.
How long has Dr. Richard C. Zellars been practicing?
Dr. Zellars graduated from medical school in 1991, 35 years ago.
Does Dr. Richard C. Zellars do research?
Dmand AI links 41 publications to Dr. Zellars, published from 2009 to 2024. Dr. Zellars has worked on 4 clinical trials.
Who does Dr. Richard C. Zellars publish with?
Dr. Zellars' most frequent co-authors are Kevin Ren-Yeh Shiue, MD (7 shared papers), Namita Agrawal, MD (6 shared papers) and Jordan Alexander Holmes, MD (6 shared papers).
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