Dr. Katherine Rebecca Exten, MD
- Medicare services, 2024
- 617
- Medicare patients, 2024
- 273
- Part D claims, 2024
- 2,333
- MIPS score, 2024
- 80
- Hospital affiliations
- 4
- Practice address
- 701 Tech Center Drive Suite 200, Gahanna, OH 43230
- Practice phone
- Call (614) 396-2670
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Central Ohio Urology Surgery Center - Gahanna
Surgery Center - Medicare-Certified · Gahanna, Ohio
Find Dr. Exten's professional email, personal email and mobile number
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Dr. Katherine Rebecca Exten is a hematologist and oncologist in Columbus, Ohio
Dr. Exten practices at Central Ohio Urology Surgery Center - Gahanna in Gahanna, Ohio.
Dr. Exten's NPI, 1982996237, was assigned on May 4, 2011. Dr. Exten graduated from Ohio State University College of Medicine in 2011. Dr. Exten holds Ohio license 35131800.
- NPI
- 1982996237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365683893
- NPI enumeration date
- May 4, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 396-2670
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Rebecca Exten practices in Gahanna and Columbus
Dr. Exten's primary practice is Central Ohio Urology Surgery Center - Gahanna, at 701 Tech Center Drive Suite 200, Gahanna, OH 43230. The practice phone is (614) 396-2670. Dr. Exten also practices at Central Ohio Urology Surgery Center, LLC, 3100 Plaza Properties Blvd, Columbus, OH 43219.
- Central Ohio Urology Surgery Center - GahannaPrimary701 Tech Center Drive Suite 200, Gahanna, OH 43230Phone(614) 396-2670
- Central Ohio Urology Surgery Center, LLC3100 Plaza Properties Blvd, Columbus, OH 43219 · Franklin CountyPhone(614) 751-1010
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Katherine Rebecca Exten is affiliated with 7 sites of care and 3 medical groups
Dr. Exten's primary practice is Central Ohio Urology Surgery Center - Gahanna in Gahanna, Ohio. Dr. Exten is also affiliated with Mount Carmel East. The medical group on file is Zangmeister Cancer Center. Dmand AI also links Dr. Exten to 3 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Rebecca Exten's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Exten practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Central Ohio Urology Surgery Center - Gahanna | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Rebecca Exten is one of 460 hematologists and oncologists in Ohio
Hematology and oncology is Dr. Exten's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Exten's licenses on file in 2 states: Ohio and Illinois.
Specialties and state licenses
- Hematology and oncology, OhioPrimary
- Internal medicine, Illinois
Hematologists and oncologists near Dr. Exten
Counts of hematologists and 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. Katherine Rebecca Exten billed Medicare for 617 services in 2024
CMS data shows 617 Medicare services from Dr. Exten across 5 procedure codes in 2024, for 273 Medicare patients. Medicare paid $57,506 for them.
Where Dr. Exten's Medicare services took place, 2024
- In an office56291%
- In a facility559%
Dr. Exten compared with the Ohio median for hematologists and oncologists, 2024
- Dr. Exten
- Ohio median
- Medicare services
- 617vs 626Close to median
- Medicare patients
- 273vs 23417% above
- Part D claims
- 2,067vs 4784.3 times
Medians across 452 hematologists and oncologists in Ohio with Dmand AI profiles that report each measure.
Dr. Exten'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. Exten and other hematologists and oncologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Rebecca Exten treated 273 Medicare patients in 2024, average age 76
CMS counts 273 Medicare patients who saw Dr. Exten in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 2.13, 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. Exten's median patient age at 68, with 61% women.
Dr. Exten's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Exten's Medicare patients by sex, 2024
- Women15758%
- Men11642%
Chronic conditions among Dr. Exten's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer52%
- Arthritis45%
- Chronic kidney disease37%
- Ischemic heart disease37%
- Diabetes36%
- Heart failure29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Exten's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women61%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Rebecca Exten wrote 2,333 Medicare Part D claims in 2024
In 2024, Dr. Exten wrote 2,333 Medicare Part D claims for 363 patients. 84% of them were for generic drugs. CMS names the drug for 2,067 of them, across 41 drugs with 11 or more claims each, at $3,361,975 in total drug cost.
Dr. Exten's Part D claims by kind of drug, 2024
- Generic1,959 claims84%
- Brand-name374 claims16%
Dr. Exten's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Exten's Part D claims, 2024
- Opioids4%102 of 2,333 claims
- Antibiotics2%56 of 2,333 claims
- Antipsychotics, patients 65 and over1%13 of 2,333 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Katherine Rebecca Exten scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Exten for performance year 2024, reported as part of a group. Dr. Exten accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Exten's MIPS scores, performance year 2024
- 80of 100Final score
- 58.7of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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. Katherine Rebecca Exten received $493 in industry payments from 2024 to 2025
CMS Open Payments shows 22 general payments to Dr. Exten from 9 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 87% of the total. Eisai Inc. paid the most, $141.
General payments to Dr. Exten by program year, 2024 to 2025
General payments to Dr. Exten by kind, 2024 to 2025
- Food and beverage$43087%
- Education$6313%
Companies that paid Dr. Exten the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Rebecca Exten graduated from Ohio State University College of Medicine
Dr. Exten graduated from Ohio State University College of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Rebecca Exten'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 Affiliation DataDmand AI Practice 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) |
| 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. Katherine Rebecca Exten
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What is Dr. Katherine Rebecca Exten's NPI number?
Dr. Katherine Rebecca Exten's NPI number is 1982996237. It was assigned on May 4, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Rebecca Exten?
Dr. Katherine Rebecca Exten is a hematologist and oncologist in Columbus, Ohio. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Katherine Rebecca Exten practice?
Dr. Exten practices at 701 Tech Center Drive Suite 200, Gahanna, OH 43230. Dr. Exten also practices at 3100 Plaza Properties Blvd, Columbus, OH 43219. Dr. Exten's primary practice is Central Ohio Urology Surgery Center - Gahanna in Gahanna, Ohio. Dmand AI also links Dr. Exten to 3 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Katherine Rebecca Exten's office phone number?
The practice phone on file for Dr. Exten is (614) 396-2670.
What is Dr. Katherine Rebecca Exten's medical license number?
Dr. Exten holds Ohio license 35131800, one of the licenses on file in 2 states.
Which states has Dr. Katherine Rebecca Exten been licensed in?
Dmand AI has state licenses on file for Dr. Exten in Ohio and Illinois.
Which hospitals is Dr. Katherine Rebecca Exten affiliated with?
Dr. Exten is affiliated with Mount Carmel East. Dmand AI links Dr. Exten to 3 more hospitals.
What medical group is Dr. Katherine Rebecca Exten part of?
Dr. Exten is linked to Zangmeister Cancer Center. Dmand AI links Dr. Exten to 2 more medical groups.
Does Dr. Katherine Rebecca Exten accept Medicare?
Yes. CMS data shows Dr. Exten billed Medicare for 617 services in 2024, and Dr. Exten accepts Medicare assignment.
What is Dr. Katherine Rebecca Exten's MIPS score?
Dr. Exten's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Katherine Rebecca Exten see?
CMS counts 273 Medicare patients who saw Dr. Exten in 2024, with an average age of 76.
What services does Dr. Katherine Rebecca Exten bill to Medicare?
In 2024, Dr. Exten's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99223) and office visit, new patient (99204).
Where did Dr. Katherine Rebecca Exten go to medical school?
Dr. Exten graduated from Ohio State University College of Medicine in 2011.
What drugs does Dr. Katherine Rebecca Exten prescribe most?
In 2024 Medicare Part D data, Dr. Exten's most prescribed drugs by claims were Anastrozole, Tamoxifen Citrate and Prochlorperazine Maleate.
Has Dr. Katherine Rebecca Exten received payments from drug or device companies?
CMS Open Payments shows $493 in general payments to Dr. Exten from 9 companies from 2024 to 2025. The largest total came from Eisai Inc.
How long has Dr. Katherine Rebecca Exten been practicing?
Dr. Exten graduated from medical school in 2011, 15 years ago.
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