Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Internal Medicine Providers in Lebanon, OH

Browse 12 Internal Medicine providers listed in NPPES with a practice address in Lebanon, Ohio.

12 Healthcare Providers

How Lebanon compares with the U.S.

Lebanon has 56 clinicians in Internal Medicine per 100,000 residents, about 1.3 times the U.S. rate of 44.

That is 12 active clinicians in Internal Medicine with a practice address in Lebanon, for a population of 21,501.

The Ohio rate is 45 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

Too few clinicians in Internal Medicine in Lebanon are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“12 of 12 providers
With recent CMS data first, then Aโ€“Z

Dr. Deann Kay Brewer , MD

Internal Medicine

Active NPI Status
870 Franklin Rd Apt S4, Lebanon, OH 450364120
Phone: 8122121194
NPI Identifier 1174688709
View Full Profile

Dr. Robert C Grischy , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450367002
Phone: 5132827911
NPI Identifier 1609878057
View Full Profile

Dr. Samia Yaqub Kanooz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
100 Arrow Springs Blvd Ste 2700, Lebanon, OH 45036
Phone: 5132827911
NPI Identifier 1144486515
View Full Profile

Dr. Charles Opperman , MD

Internal Medicine

Active NPI Status
1470 N Broadway St Ste 130, Lebanon, OH 450361762
Phone: 5136961280
NPI Identifier 1891051892
View Full Profile

Dr. Mahalakshmi Veera Sadhu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450367002
Phone: 5132827911
NPI Identifier 1649446329
View Full Profile

Dr. Elissa Whittenburg , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2460 Greentree Rd Ste D, Lebanon, OH 450369604
Phone: 3148885233
NPI Identifier 1770526204
View Full Profile

Dr. Jeffrey N Armitage , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450369863
Phone: 5132827911
NPI Identifier 1932191137
View Full Profile

Dr. Ann D Declue , MD

Internal Medicine

Active NPI Status
990 Belvedere Dr Ste A, Lebanon, OH 450362890
Phone: 2403139850
NPI Identifier 1790879633
View Full Profile

Dr. Steven H Grendel , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450369863
Phone: 5132827911
NPI Identifier 1255323192
View Full Profile

Dr. Bill J Karas , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450369863
Phone: 5132827911
NPI Identifier 1245222140
View Full Profile

Dr. Paul V Kollman , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450369863
Phone: 5132827300
NPI Identifier 1780765511
View Full Profile

Dr. Natalie Turchin , MD

Internal Medicine

Active NPI Status
100 Arrow Springs Blvd, Suite 2700, Lebanon, OH 450369863
Phone: 5132827911
NPI Identifier 1649263559
View Full Profile

Frequently Asked Questions about Internal Medicine in Lebanon

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Ohio licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.

Other Specialties in Lebanon

Internal Medicine Providers in Other Ohio Cities

Cities with the most listed practitioners first.