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Internal Medicine Providers in Grafton, WI

Browse 19 Internal Medicine providers listed in NPPES with a practice address in Grafton, Wisconsin.

19 Healthcare Providers

How Grafton compares with the U.S.

Grafton has 153 clinicians in Internal Medicine per 100,000 residents, 3.4 times the U.S. rate of 44.

That is 19 active clinicians in Internal Medicine with a practice address in Grafton, for a population of 12,445.

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.

100% of clinicians in Internal Medicine in Grafton listed in the CMS Medicare file (14 of 14) 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.

None of the 14 clinicians in Internal Medicine in Grafton listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

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 Grafton, WI

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Grafton, WI
Part B Lab & Imaging Eligible 15 Diagnostic Referrals
DME Ordering Eligible 15 Durable Medical Equipment
Home Health Agency Referrals 15 HHA Ordering Eligible
Showing 1โ€“19 of 19 providers
With recent CMS data first, then Aโ€“Z

Dr. Muhammed R Al-Fawakhiri , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Port Washington Rd, Grafton, WI 530249201
Phone: 2623293450
NPI Identifier 1942276613
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Dr. Daniel Attanasio , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1609801380
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Dr. Melinda C Bonilla-Puetz , MD

Internal Medicine

Active NPI Status
215 W Washington Street, Grafton, WI 53024
Phone: 2623753700
NPI Identifier 1942233101
View Full Profile

Dr. Katherine N Burrows , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2061 Cheyenne Ct, Grafton, WI 530249368
Phone: 2623761934
NPI Identifier 1942323878
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Dr. William A Ebinger , MD

Internal Medicine

Active NPI Status
215 Washington St, Grafton, WI 53024
Phone: 2623753700
NPI Identifier 1700818952
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Dr. John A Feilbach , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 53024
Phone: 2623753700
NPI Identifier 1538191168
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Dr. Ashwini Gundelly , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1750310801
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Dr. Richard J. Lusis , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1013941566
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Dr. Anthony Nashid , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1801383542
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Dr. Amanda R Olstinski , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Port Washington Rd, Grafton, WI 530249201
Phone: 2623291000
NPI Identifier 1316400880
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Dana Osburn

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1699208983
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Dr. Shannon J. Reinbold , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2061 Cheyenne Court, Grafton, WI 530249368
Phone: 2623761934
NPI Identifier 1912065855
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Dr. Adine Rodemeyer , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Port Washington Rd, Grafton, WI 530249201
Phone: 2623291000
NPI Identifier 1770516130
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Dr. Gurpreet Singh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Port Washington Rd, Grafton, WI 530249201
Phone: 2623291000
NPI Identifier 1760042568
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Dr. Thomas E Vravick , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
215 Washington St, Grafton, WI 530241700
Phone: 2623753700
NPI Identifier 1578573259
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Active NPI Status Accepts Medicare Assignment
2061 Cheyenne Ct, Grafton, WI 530249368
Phone: 2623761934
NPI Identifier 1033670047
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Dr. Richard W Bunting , MD

Internal Medicine

Active NPI Status
215 W Washington St, Grafton, WI 53024
Phone: 2623753700
NPI Identifier 1730111964
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Dr. Domingo T Hong , MD

Internal Medicine

Active NPI Status
1990 Wisconsin Ave, Grafton, WI 530242601
Phone: 2623752305
NPI Identifier 1811915358
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Dr. Beatrice L Hoolboom , MD

Internal Medicine

Active NPI Status
215 W Washington Street, Grafton, WI 53024
Phone: 2623753700
NPI Identifier 1306877733
View Full Profile

Frequently Asked Questions about Internal Medicine in Grafton

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.

Other Specialties in Grafton

Internal Medicine Providers in Other Wisconsin Cities

Cities with the most listed practitioners first.