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Internal Medicine - Nephrology Specialists in Worcester, MA

Browse 42 Internal Medicine - Nephrology providers listed in NPPES with a practice address in Worcester, Massachusetts.

42 Healthcare Providers

How Worcester compares with the U.S.

Worcester has 20 clinicians in Internal Medicine - Nephrology per 100,000 residents, 5.1 times the U.S. rate of 4.0.

That is 42 active clinicians in Internal Medicine - Nephrology with a practice address in Worcester, for a population of 207,055.

The Massachusetts rate is 5.9 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.

97% of clinicians in Internal Medicine - Nephrology in Worcester listed in the CMS Medicare file (31 of 32) accept Medicare assignment. That is similar to the Massachusetts share of 98%.

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.

47% of clinicians in Internal Medicine - Nephrology in Worcester listed in the CMS Medicare file (15 of 32) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Massachusetts share of 52%.

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 - Nephrology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Nephrology practitioners in Worcester, MA

Source: CMS PECOS
PECOS Enrolled Specialists 34 In Worcester, MA
Part B Lab & Imaging Eligible 34 Diagnostic Referrals
DME Ordering Eligible 36 Durable Medical Equipment
Home Health Agency Referrals 34 HHA Ordering Eligible
Showing 1โ€“20 of 42 providers
With recent CMS data first, then Aโ€“Z

Dr. Konstantin Abramov , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5088563155
NPI Identifier 1992854707
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Dr. Ashfaq S. Balla , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5088563155
NPI Identifier 1740228220
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Dr. Kirti Basil , DO

Internal Medicine - Nephrology

Active NPI Status
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1245644988
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Dr. Kenneth A Bodziak , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083341269
NPI Identifier 1699790295
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Dr. Anil Kumar Chandraker , MBCHB

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1972569176
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Dr. Arun Chutani , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1962999169
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Dr. Maria Bernadette Delrosario , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
85 Prescott St, Worcester, MA 016052610
Phone: 5087559535
NPI Identifier 1609859230
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Dr. Pang-Yen Fan , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Lake Ave N, Worcester, MA 016550002
Phone: 5088563155
NPI Identifier 1477536936
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Dr. Felipe Fernandez Del Castillo , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
123 Summer St Ste 380n, Worcester, MA 016081216
Phone: 5083636126
NPI Identifier 1740639681
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Dr. Nishanth Girija Kumar , MD

Internal Medicine - Nephrology

Active NPI Status
123 Summer St, Worcester, MA 016081216
Phone: 5083636208
NPI Identifier 1548643752
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Dr. Marguerite A Hawley , MD

Internal Medicine - Nephrology

Active NPI Status
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083348515
NPI Identifier 1841274107
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Dr. Eric S. Iida , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1275556912
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Dr. Katarina Illanes , MD

Internal Medicine - Nephrology

Active NPI Status
281 Lincoln St, Medical Staff Svcs, Worcester, MA 016052138
Phone: 5083348015
NPI Identifier 1912049677
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Dr. Neeraj Jain , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
123 Summer St, Worcester, MA 016081216
Phone: 5083635000
NPI Identifier 1144425539
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Dr. Sonia Kamath , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
123 Summer St, Worcester, MA 016081216
Phone: 5083635000
NPI Identifier 1851347736
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Dr. Glenn R. Kershaw , MD

Internal Medicine - Nephrology

Active NPI Status
55 Lake Ave N, Department Of Nephrology, Worcester, MA 016550002
Phone: 5088563155
NPI Identifier 1023092939
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Dr. Fatima Khalid , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5088563155
NPI Identifier 1134434210
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Dr. Dagmar Klinger , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1578534327
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Dr. Jason Michael Kurland , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1194940692
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Dr. Sul A Lee , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083343155
NPI Identifier 1326601311
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Frequently Asked Questions about Internal Medicine - Nephrology in Worcester

How do I check a Internal Medicine - Nephrology 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 Massachusetts 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.