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Internal Medicine Providers in Mattoon, IL

Browse 22 Internal Medicine providers listed in NPPES with a practice address in Mattoon, Illinois.

22 Healthcare Providers

How Mattoon compares with the U.S.

Mattoon has 133 clinicians in Internal Medicine per 100,000 residents, 3.0 times the U.S. rate of 44.

That is 22 active clinicians in Internal Medicine with a practice address in Mattoon, for a population of 16,586.

The Illinois rate is 57 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.

100% of clinicians in Internal Medicine in Mattoon listed in the CMS Medicare file (17 of 17) accept Medicare assignment. That is similar to the Illinois share of 96%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

6% of clinicians in Internal Medicine in Mattoon listed in the CMS Medicare file (1 of 17) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Illinois share of 35%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Mattoon, IL

Source: CMS PECOS
PECOS Enrolled Specialists 21 In Mattoon, IL
Part B Lab & Imaging Eligible 21 Diagnostic Referrals
DME Ordering Eligible 21 Durable Medical Equipment
Home Health Agency Referrals 21 HHA Ordering Eligible
Showing 1โ€“20 of 22 providers
With recent CMS data first, then Aโ€“Z

Dr. Arnold V Agapito , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619389261
Phone: 2172582525
NPI Identifier 1467421677
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Dr. Timothy H Camden , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Lerna Rd S, Mattoon, IL 619389388
Phone: 2172585960
NPI Identifier 1659323327
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Dr. Marisa Friscia , MD

Internal Medicine

Active NPI Status
200 Richmond Ave E Ste 1, Mattoon, IL 619384652
Phone: 2172347000
NPI Identifier 1568657328
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Dr. Robert G Good , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Lerna Road South, Mattoon, IL 61938
Phone: 2172585900
NPI Identifier 1639122922
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Dr. James Hildebrandt , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1004 Health Center Dr Ste 210, Mattoon, IL 619384608
Phone: 2172384960
NPI Identifier 1386750008
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Dr. Shemariah Laish Israel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Richmond Ave E Ste 1, Mattoon, IL 619384652
Phone: 2172347000
NPI Identifier 1811560881
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Dr. Renard Ronaldo Jerome , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619384644
Phone: 2172384325
NPI Identifier 1174264410
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Dr. Kiran Joag , MD

Internal Medicine

Active NPI Status
200 Richmond Ave E, Mattoon, IL 619384652
Phone: 2172347400
NPI Identifier 1013023258
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Dr. Carl R Johnson , MD

Internal Medicine

Active NPI Status
500 Health Center Dr, Suite 104, Mattoon, IL 619389258
Phone: 2172584080
NPI Identifier 1275525701
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Dr. Kara Jolly , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Richmond Ave E Ste 2, Mattoon, IL 619384652
Phone: 2172347000
NPI Identifier 1659831071
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Dr. Mathew S Kalapurayil , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619384644
Phone: 2172384325
NPI Identifier 1295182459
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Dr. Richard Do Nguyen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619389261
Phone: 2172354325
NPI Identifier 1053793174
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James Samuel Polek

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Richmond Ave E Ste 4, Mattoon, IL 619384652
Phone: 2172347000
NPI Identifier 1720519754
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Dr. Jeffrey David Powell , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
200 Richmond Ave E Ste 1, Mattoon, IL 619384652
Phone: 2172347000
NPI Identifier 1871921551
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Dr. Jan Michael Dulalas Racoma , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619384644
Phone: 2172584325
NPI Identifier 1902390099
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Dr. Gursher Singh Rathore , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619384644
Phone: 2172384325
NPI Identifier 1437730587
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Dr. John Rogers , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Health Center Dr, Mattoon, IL 619384644
Phone: 2172384325
NPI Identifier 1023086295
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Dr. Abdur R. Shakir , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1000 Health Center Dr, Mattoon, IL 619389261
Phone: 2172582250
NPI Identifier 1669583431
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Dr. Julian Vassay , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 Professional Plaza, Mattoon, IL 61938
Phone: 2172582110
NPI Identifier 1003922782
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Dr. David Winograd , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 Professional Plz, Mattoon, IL 619389252
Phone: 2172383730
NPI Identifier 1144337767
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Frequently Asked Questions about Internal Medicine in Mattoon

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 Illinois 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.