Active NPI 1982996237 Individual Practitioner Female Practitioner

Dr. Katherine Rebecca Exten , MD

Internal Medicine - Hematology & Oncology • Mansfield, OH

✓ Accepts Medicare Assignment

Public Directory Information & Medical Disclaimer

This profile is compiled from official public domain records provided by CMS and the NPPES registry. TRUE-MEDINFO is an independent reference directory and does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed medical professional for personal health decisions.

Professional Overview & Biography Verified Profile Summary

Dr. Katherine Exten, MD is a registered Internal Medicine - Hematology & Oncology practitioner in Mansfield, OH. With approximately 15 years of clinical practice since graduating from Ohio State University College Of Medicine in 2011, Dr. Exten provides healthcare services at the registered practice location at 335 GLESSNER AVE.

Dr. Exten is affiliated with American Oncology Partners Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, initial hospital care with moderate level of medical decision making, if using time, at least, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

335 Glessner Ave

Mansfield, OH 449032269

Telephone 4197562003

Associated Practice Facility / Clinic

🏢 Mansfield Radiation Oncology Facility NPI 1154322428

Medicare Profile & Education

Medical School

Ohio State University College Of Medicine

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Hematology & Oncology in Mansfield, OH

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs -15.5 yrs vs City Avg

City Avg: 30.5 Yrs

State Avg: 28.2 Yrs

Regional Practice Density

7 Specialists

Practicing in Mansfield, OH (529 Statewide)

Telehealth Adoption Rate

28.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

46.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Exten (15 Years) 15 Yrs

Mansfield Specialty Average (30.5 Years) 30.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	516	233	$189.75	$125.08
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	33	25	$366.15	$170.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	26	26	$299.38	$164.04
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	15	$183.00	$77.78
99213 Established patient office or other outpatient visit, typically 15 minutes	20	20	$126.00	$88.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	686	285	$187.00	$123.35
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	86	35	$214.00	$117.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	68	63	$359.00	$168.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	35	35	$291.00	$161.87
99213 Established patient office or other outpatient visit, typically 15 minutes	21	20	$126.00	$87.32
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	14	$183.00	$77.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	601	287	$187.00	$124.55
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	69	61	$245.00	$132.09
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	62	62	$291.00	$161.52
99213 Established patient office or other outpatient visit, typically 15 minutes	47	42	$126.00	$88.54
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	40	24	$214.00	$100.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	453	234	$187.00	$127.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	58	49	$245.00	$135.05
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	49	19	$214.00	$102.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$291.00	$165.63
99213 Established patient office or other outpatient visit, typically 15 minutes	22	20	$126.00	$86.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	391	175	$187.00	$106.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	76	76	$291.00	$162.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	70	60	$245.00	$138.45
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	53	33	$206.08	$104.58
99442 Telephone medical discussion with physician, 11-20 minutes	44	38	$126.00	$73.16
99441 Telephone medical discussion with physician, 5-10 minutes	24	22	$76.00	$44.17
38222 Biopsy and aspiration of bone marrow sample for diagnosis	12	12	$234.00	$79.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	317	134	$187.00	$103.91
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	112	45	$184.00	$101.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	73	60	$245.00	$133.90
99213 Established patient office or other outpatient visit, typically 15 minutes	66	51	$126.00	$71.29
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	64	64	$291.00	$158.01
38222 Biopsy and aspiration of bone marrow sample for diagnosis	12	12	$234.00	$77.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	252	93	$126.00	$69.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	80	71	$245.00	$134.04
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	76	42	$184.00	$102.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	54	54	$291.00	$159.05
38222 Biopsy and aspiration of bone marrow sample for diagnosis	16	15	$234.00	$77.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	43	30	$126.00	$69.80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	33	$274.36	$140.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	26	15	$135.81	$72.03
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$291.00	$157.76
99219 Hospital observation care, typically 50 minutes	18	18	$297.00	$144.23

Medical Specialties & State Licenses

Internal Medicine - Hematology & Oncology Primary Specialty

NUCC Taxonomy Code: 207RH0003X

State License OH 35131800

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License IL 036.134806

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

0233087 (OH)

Hospital & Practice Group Affiliations

American Oncology Partners Pa

3100 Plaza Properties Blvd, Columbus, OH 432191530

Phone: 6143836000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

6 Associated Practitioners

Dr. Laura Weakland , MD

Internal Medicine - Hematology & Oncology

NPI 1073591525

Doctor of Medicine (M.D.)

Giavanna De Larosa , APRN-CNP

Nurse Practitioner - Family

NPI 1174043731

Advanced Practice Registered Nurse - Certified Nurse Practitioner

Tammy Canfield , NP

Nurse Practitioner - Acute Care

NPI 1184053100

Nurse Practitioner

Dr. Faisal Adhami , MD, PhD

Internal Medicine - Hematology & Oncology

NPI 1649405549

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Emily Russell , MSW, LISW

Social Worker - Clinical

NPI 1699102343

Master of Social Work, Licensed Independent Social Worker

Dr. Hamzah Abu-Sbeih , MD

Internal Medicine

NPI 1881155687

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events

✅

NPI Profile Active January 15, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 15, 2018

Registered at 335 GLESSNER AVE, MANSFIELD, OH 449032269 (Tel: 4197562003)

📍

Updated Business Mailing Address January 15, 2018

Registered at 840 S WOOD ST STE 820-E, CHICAGO, IL 606124325

👤

Provider Name / Credentials Updated January 15, 2018

Recorded as KATHERINE EXTEN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 15, 2018

Internal Medicine (License #036.134806 in IL)

✅

NPI Profile Active November 12, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location November 12, 2015

Registered at 840 S WOOD ST STE 820-E, CHICAGO, IL 606124325 (Tel: 3129961581)

📍

Updated Business Mailing Address November 12, 2015

Registered at 840 S WOOD ST STE 820-E, CHICAGO, IL 606124325

👤

Provider Name / Credentials Updated November 12, 2015

Recorded as KATHERINE EXTEN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 12, 2015

Internal Medicine (License #036.134806 in IL)

🟢

Initial NPI Registration & Enumeration May 04, 2011

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1982996237

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: May 04, 2011

Last Update: January 25, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

840 S Wood St Ste 820-E

Chicago, IL 606124325

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.