Dr. Rena Beth Zimmerman, MD
- Medicare services, 2024
- 848
- Medicare patients, 2024
- 93
- Part D claims, 2024
- 19
- Hospital affiliations
- 4
- Industry payments
- $106
- Practice address
- 945 Bethesda Dr, Zanesville, OH 43701
- Practice phone
- Call (740) 450-6147
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Genesis Medical Group
Zanesville, Ohio
Find Dr. Zimmerman's 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. Rena Beth Zimmerman is a radiation oncologist in Zanesville, Ohio
Dr. Zimmerman practices at Genesis Medical Group in Zanesville, Ohio.
Dr. Zimmerman's NPI, 1851350318, was assigned on March 22, 2006. Dr. Zimmerman holds Illinois license 036071196.
- NPI
- 1851350318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537058417
- NPI enumeration date
- March 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (740) 450-6147
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rena Beth Zimmerman practices at Genesis Medical Group in Zanesville, Ohio
Dr. Zimmerman's primary practice is Genesis Medical Group, at 945 Bethesda Dr, Zanesville, OH 43701 in Muskingum County. The practice phone is (740) 450-6147.
- Genesis Medical Group945 Bethesda Dr, Zanesville, OH 43701 · Muskingum CountyPhone(740) 450-6147
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rena Beth Zimmerman is affiliated with 7 sites of care and 6 medical groups
Dr. Zimmerman's primary practice is Genesis Medical Group in Zanesville, Ohio. Dr. Zimmerman is also affiliated with Genesis Hospital. The medical group on file is Genesis Medical Group. Dmand AI also links Dr. Zimmerman to 3 more hospitals, 5 medical groups and 2 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Rena Beth Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Genesis Medical Group | Available with a free account |
| +6 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rena Beth Zimmerman is one of 267 radiation oncologists in Ohio
Radiation oncology is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Zimmerman's licenses on file in 3 states: Illinois, North Dakota and Ohio.
Specialties and state licenses
- Radiation oncology, IllinoisPrimary
- North Dakota license
- Ohio license
Radiation oncologists near Dr. Zimmerman
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. Rena Beth Zimmerman billed Medicare for 848 services in 2024
CMS data shows 848 Medicare services from Dr. Zimmerman across 10 procedure codes in 2024, for 93 Medicare patients. Medicare paid $52,678 for them.
Dr. Zimmerman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 6382024: 76520%
- Office and hospital visits
- 2023: 992024: 6435%
- Other services
- 2023: 172024: 1912%
Where Dr. Zimmerman's Medicare services took place, 2024
- In an office43251%
- In a facility41649%
Dr. Zimmerman compared with the Ohio median for radiation oncologists, 2024
- Dr. Zimmerman
- Ohio median
- Medicare services
- 848vs 1,12024% below
- Medicare patients
- 93vs 15741% below
- Part D claims
- 11vs 3165% below
Medians across 262 radiation oncologists in Ohio with Dmand AI profiles that report each measure.
Dr. Zimmerman'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimmerman and other radiation oncologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rena Beth Zimmerman treated 93 Medicare patients in 2024, average age 73
CMS counts 93 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have cancer, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.83, 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. Zimmerman's median patient age at 73, with 46% women.
Dr. Zimmerman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zimmerman's Medicare patients by sex, 2024
- Women3437%
- Men5963%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure71%
- Arthritis45%
- Ischemic heart disease33%
- COPD32%
- Chronic kidney disease32%
- Anxiety29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rena Beth Zimmerman wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 19 Medicare Part D claims for 13 patients. 95% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $223 in total drug cost.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic18 claims95%
- Brand-name and other1 claims5%
Dr. Zimmerman's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
How Dr. Rena Beth Zimmerman takes part in Medicare
Dr. Zimmerman 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. Rena Beth Zimmerman received $106 in industry payments from 2017 to 2025
CMS Open Payments shows 5 general payments to Dr. Zimmerman from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Varian Medical Systems, Inc. paid the most, $28.
General payments to Dr. Zimmerman by program year, 2017 to 2025
Companies that paid Dr. Zimmerman the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Rena Beth Zimmerman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Rena Beth Zimmerman
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. Rena Beth Zimmerman's NPI number?
Dr. Rena Beth Zimmerman's NPI number is 1851350318. It was assigned on March 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rena Beth Zimmerman?
Dr. Rena Beth Zimmerman is a radiation oncologist in Zanesville, Ohio. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Rena Beth Zimmerman practice?
Dr. Zimmerman practices at 945 Bethesda Dr, Zanesville, OH 43701. Dr. Zimmerman's primary practice is Genesis Medical Group in Zanesville, Ohio. Dmand AI also links Dr. Zimmerman to 3 hospitals, 5 medical groups and 2 group practices and clinics.
What is Dr. Rena Beth Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (740) 450-6147.
What is Dr. Rena Beth Zimmerman's medical license number?
Dr. Zimmerman holds Illinois license 036071196, one of the licenses on file in 3 states.
Which states has Dr. Rena Beth Zimmerman been licensed in?
Dmand AI has state licenses on file for Dr. Zimmerman in Illinois, North Dakota and Ohio.
Which hospitals is Dr. Rena Beth Zimmerman affiliated with?
Dr. Zimmerman is affiliated with Genesis Hospital. Dmand AI links Dr. Zimmerman to 3 more hospitals.
What medical group is Dr. Rena Beth Zimmerman part of?
Dr. Zimmerman is linked to Genesis Medical Group. Dmand AI links Dr. Zimmerman to 5 more medical groups.
Does Dr. Rena Beth Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 848 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
How many Medicare patients does Dr. Rena Beth Zimmerman see?
CMS counts 93 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Rena Beth Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).
What drugs does Dr. Rena Beth Zimmerman prescribe most?
In 2021 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Tamsulosin HCl.
Has Dr. Rena Beth Zimmerman received payments from drug or device companies?
CMS Open Payments shows $106 in general payments to Dr. Zimmerman from 5 companies from 2017 to 2025. The largest total came from Varian Medical Systems, Inc.
How long has Dr. Rena Beth Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 1983, 43 years ago.
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