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Internal Medicine Providers in Waukesha, WI

Browse 42 Internal Medicine providers listed in NPPES with a practice address in Waukesha, Wisconsin.

42 Healthcare Providers

How Waukesha compares with the U.S.

Waukesha has 59 clinicians in Internal Medicine per 100,000 residents, about 1.3 times the U.S. rate of 44.

That is 42 active clinicians in Internal Medicine with a practice address in Waukesha, for a population of 71,233.

The Wisconsin rate is 35 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.

78% of clinicians in Internal Medicine in Waukesha listed in the CMS Medicare file (21 of 27) accept Medicare assignment. That is lower 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.

22% of clinicians in Internal Medicine in Waukesha listed in the CMS Medicare file (6 of 27) 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 Waukesha, WI

Source: CMS PECOS
PECOS Enrolled Specialists 31 In Waukesha, WI
Part B Lab & Imaging Eligible 31 Diagnostic Referrals
DME Ordering Eligible 31 Durable Medical Equipment
Home Health Agency Referrals 31 HHA Ordering Eligible
Showing 1โ€“20 of 42 providers
With recent CMS data first, then Aโ€“Z

Margaret Barrett

Internal Medicine

Active NPI Status
W231n1440 Corporate Ct, Waukesha, WI 531861303
Phone: 2628966000
NPI Identifier 1912161647
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Dr. Bruce Bart Berry , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2315 E Moreland Blvd, Waukesha, WI 531862939
Phone: 2625325700
NPI Identifier 1710065230
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Dr. Jonathan Bodager , MD

Internal Medicine

Active NPI Status
725 American Ave, Waukesha, WI 531885031
Phone: 2629285400
NPI Identifier 1386006815
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Dr. William Boehm , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
N14w23900 Stone Ridge Dr, Prohealth Care Medical Associates Inc., Waukesha, WI 531881135
Phone: 2625493030
NPI Identifier 1346213519
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Dr. Greg L Brown , MD

Internal Medicine

Active NPI Status
2607 N. Grandview Blvd, Ste 150, Waukesha, WI 53188
Phone: 2625228640
NPI Identifier 1841344231
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Dr. Thomas P Cantieri , MD

Internal Medicine

Active NPI Status
2130 Big Bend Rd, Prohealth Care Medical Associates Inc, Waukesha, WI 531897624
Phone: 2629287555
NPI Identifier 1538132360
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Dr. Wendy Cooper , MD

Internal Medicine

Active NPI Status
N14w23900 Stone Ridge Dr, Prohealth Care Medical Associates Inc., Waukesha, WI 531881135
Phone: 2625493030
NPI Identifier 1720051824
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Dr. Reyhan Demircioglu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2130 Big Bend Rd, Prohealth Care Medical Associates Inc., Waukesha, WI 531897624
Phone: 2629287555
NPI Identifier 1215085857
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Dr. Cassandra Rae Edwards , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
W231n1440 Corporate Ct, Waukesha, WI 531861303
Phone: 2628966000
NPI Identifier 1598027203
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Dr. Kavisha D Gandhi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
725 American Ave, Waukesha, WI 531885099
Phone: 2629281000
NPI Identifier 1679137434
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Dr. Whitney Hoffmann , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2428 N Grandview Blvd Ste 102, Waukesha, WI 531886906
Phone: 2628754521
NPI Identifier 1730539206
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Dr. Jamey Jill Jick , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
N14w23900 Stone Ridge Dr, Prohealth Care Medical Associates, Waukesha, WI 531881135
Phone: 2625493030
NPI Identifier 1902985013
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Dr. Martin William Kern , MD

Internal Medicine

Active NPI Status
1111 Delafield St, Waukesha, WI 531883417
Phone: 2625429531
NPI Identifier 1215938758
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Dr. Binod Khadka , MD

Internal Medicine

Active NPI Status
725 American Ave, Waukesha, WI 531885099
Phone: 2629285400
NPI Identifier 1265667430
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Dr. Robert Krippendorf , MD

Internal Medicine

Active NPI Status
N16w24131 Riverwood Dr, Waukesha, WI 531881106
Phone: 2626960808
NPI Identifier 1811941164
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Dr. William F Lutz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2130 Big Bend Rd, Waukesha, WI 531897624
Phone: 2629287555
NPI Identifier 1346237625
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Dr. Dean Luu , MD

Internal Medicine

Active NPI Status
725 American Ave Rm 2036, Prohealth Care Hospitalist Program, Waukesha, WI 531885031
Phone: 2629285400
NPI Identifier 1124260542
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Dr. Sarita Makhija , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
N14w23900 Stone Ridge Dr, Prohealth Care Medical Associates Inc, Waukesha, WI 531881135
Phone: 2625748000
NPI Identifier 1184697187
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Dr. Brad Malehorn , DO

Internal Medicine

Active NPI Status
725 American Ave, Room 2036, Waukesha, WI 531885031
Phone: 2629281000
NPI Identifier 1568671378
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Dr. Kieran Mcavoy , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
N20w22961 Watertown Rd, Waukesha, WI 531861306
Phone: 2628755070
NPI Identifier 1316407372
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Frequently Asked Questions about Internal Medicine in Waukesha

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.