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Internal Medicine Providers in Janesville, WI

Browse 22 Internal Medicine providers listed in NPPES with a practice address in Janesville, Wisconsin.

22 Healthcare Providers

How Janesville compares with the U.S.

Janesville has 33 clinicians in Internal Medicine per 100,000 residents, about 75% of the U.S. rate of 44.

That is 22 active clinicians in Internal Medicine with a practice address in Janesville, for a population of 66,030.

That is close to the Wisconsin rate of 35.

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.

100% of clinicians in Internal Medicine in Janesville listed in the CMS Medicare file (12 of 12) accept Medicare assignment. That is higher than the Wisconsin share of 94%.

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.

25% of clinicians in Internal Medicine in Janesville listed in the CMS Medicare file (3 of 12) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Wisconsin 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 Janesville, WI

Source: CMS PECOS
PECOS Enrolled Specialists 16 In Janesville, WI
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 16 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“20 of 22 providers
With recent CMS data first, then Aโ€“Z

Dr. Muhammad B Alkhan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Mineral Point Ave, Janesville, WI 535482940
Phone: 6087566800
NPI Identifier 1114950813
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Dr. Mark P. Angevine , MD

Internal Medicine

Active NPI Status
3524 E Milwaukee St, Janesville, WI 535461626
Phone: 6087567100
NPI Identifier 1861586422
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Dr. Kristine K. Arndt , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3524 E Milwaukee St, Janesville, WI 535461626
Phone: 6087567100
NPI Identifier 1720442809
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Dr. Ryndon Negrillo Bautista , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3524 E Milwaukee St, Janesville, WI 535461626
Phone: 6087567100
NPI Identifier 1225230170
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Dr. Maria L Fassari , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3400 E Racine St, Janesville, WI 535462344
Phone: 6083738000
NPI Identifier 1295860500
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Dr. Hassan Homida , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Mineral Point Ave, Janesville, WI 535482940
Phone: 6087566868
NPI Identifier 1073017695
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Dr. Nader Honarkhah , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3524 E Milwaukee St, Janesville, WI 535461626
Phone: 6087567100
NPI Identifier 1851464242
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Hafiz Dewan Hamza Khalid

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Mineral Point Ave, Janesville, WI 535482982
Phone: 6087566868
NPI Identifier 1154757607
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Dr. Kauseruzzaman A. Khan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3524 E Milwaukee St, Janesville, WI 535461626
Phone: 6087567100
NPI Identifier 1093724304
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Dr. Hyung Joo Kim , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Mineral Point Ave, Janesville, WI 535482940
Phone: 6087566000
NPI Identifier 1457554511
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Dr. Kathryn A Lilley , MD

Internal Medicine

Active NPI Status
3200 E Racine St, Janesville, WI 535462343
Phone: 6083718000
NPI Identifier 1104872670
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Dr. Mark W Menet , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Mineral Point Ave, Janesville, WI 535482940
Phone: 6087566261
NPI Identifier 1699975086
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Dr. Dale E Miller , MD

Internal Medicine

Active NPI Status
3200 E Racine St, Janesville, WI 535462343
Phone: 6083718000
NPI Identifier 1932148491
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Daniel Nunez

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3200 E Racine St, Janesville, WI 535462343
Phone: 6083718000
NPI Identifier 1689251639
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Dr. Nancy C Rainiero , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3200 E Racine St, Janesville, WI 535462343
Phone: 6083718000
NPI Identifier 1174564363
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Dr. Harry R Ramsey , MD

Internal Medicine

Active NPI Status
3200 E Racine St, Janesville, WI 535462343
Phone: 6083718000
NPI Identifier 1962457135
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Dr. Stanley W Gruhn , MD

Internal Medicine

Active NPI Status
580 N Washington St, Dean Medical Center, Janesville, WI 535482908
Phone: 6087553500
NPI Identifier 1760437081
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Dr. Denise Hunter , MD

Internal Medicine

Active NPI Status
1010 N Washington St, Janesville, WI 535481561
Phone: 6087412430
NPI Identifier 1184663320
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Dr. Hena Kausar , MD

Internal Medicine

Active NPI Status
3102 Vold Ct, Apt 1, Janesville, WI 535464109
Phone: 6083222405
NPI Identifier 1821418583
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Dr. Amin A Lakhdhir , MD

Internal Medicine

Active NPI Status
1010 N Washington St., Mercy Mall Clinic, Janesville, WI 535481561
Phone: 6087412430
NPI Identifier 1356321970
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Frequently Asked Questions about Internal Medicine in Janesville

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 Wisconsin 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.