Dr. Stephen L. Blonsky, MD
- Medicare services, 2024
- 47
- Medicare patients, 2024
- 33
- Part D claims, 2022
- 15
- Industry payments
- $200
- Medical groups
- 3
- Practice address
- 5215 Holy Cross Pkwy, Mishawaka, IN 46545
- Practice phone
- Call (574) 262-5295
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Elkhart Dialysis
Mishawaka, Indiana
Find Dr. Blonsky's professional email, personal email and mobile number
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Dr. Stephen L. Blonsky is a nephrologist in Mishawaka, Indiana
Dr. Blonsky practices at Elkhart Dialysis in Mishawaka, Indiana.
Dr. Blonsky's NPI, 1497855126, was assigned on September 23, 2006. Dr. Blonsky holds Wisconsin license 27560.
- NPI
- 1497855126NPI Registry (opens in a new tab)
- NPI enumeration date
- September 23, 2006
- NPI status
- Active
- Practice phone
- (574) 262-5295
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Stephen L. Blonsky practices at Elkhart Dialysis in Mishawaka, Indiana
Dr. Blonsky's primary practice is Elkhart Dialysis, at 5215 Holy Cross Pkwy, Mishawaka, IN 46545 in St Joseph County. The practice phone is (574) 262-5295.
- Elkhart Dialysis5215 Holy Cross Pkwy, Mishawaka, IN 46545 · St Joseph CountyPhone(574) 262-5295
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen L. Blonsky is affiliated with 1 site of care and 3 medical groups
Dr. Blonsky's primary practice is Elkhart Dialysis in Mishawaka, Indiana. The medical group on file is Kidney Care of Michiana. Dmand AI also links Dr. Blonsky to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen L. Blonsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Blonsky practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Elkhart Dialysis | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen L. Blonsky is one of 197 nephrologists in Indiana
Nephrology is Dr. Blonsky's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Blonsky is licensed in Wisconsin.
Specialties and state licenses
- Nephrology, WisconsinPrimary
Nephrologists near Dr. Blonsky
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen L. Blonsky billed Medicare for 47 services in 2024
CMS data shows 47 Medicare services from Dr. Blonsky across 2 procedure codes in 2024, for 33 Medicare patients. Medicare paid $3,416 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Blonsky's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 692024: 4732%
Dr. Blonsky compared with the Indiana median for nephrologists, 2024
- Dr. Blonsky
- Indiana median
- Medicare services
- 47vs 91995% below
- Medicare patients
- 33vs 34290% below
- Part D claims
- 15vs 82398% below
Medians across 204 nephrologists in Indiana with Dmand AI profiles that report each measure.
Dr. Blonsky's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Blonsky and other nephrologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen L. Blonsky treated 33 Medicare patients in 2024, average age 74
CMS counts 33 Medicare patients who saw Dr. Blonsky in 2024. The largest group is 65 to 74, with 11 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. Their average risk score is 4.35, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Blonsky's median patient age at 62, with 50% women.
Dr. Blonsky's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Blonsky's Medicare patients by sex, 2024
- Women1855%
- Men1545%
Chronic conditions among Dr. Blonsky's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Heart failure67%
- Atrial fibrillation64%
- Diabetes64%
- Ischemic heart disease58%
- Arthritis52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Blonsky's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen L. Blonsky wrote 15 Medicare Part D claims in 2022
In 2022, Dr. Blonsky wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $97 in total drug cost. In 2021, CMS named 64 claims across 4 drugs.
Dr. Blonsky's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 642022: 1577%
Drugs named by CMS: 1 in 2022, 4 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Stephen L. Blonsky received $200 in industry payments from 2016 to 2019
CMS Open Payments shows 4 general payments to Dr. Blonsky from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 61% of the total. Amgen Inc. paid the most, $122.
General payments to Dr. Blonsky by program year, 2016 to 2019
General payments to Dr. Blonsky by kind, 2016 to 2019
- Food and beverage$12261%
- Education$7739%
Companies that paid Dr. Blonsky the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Stephen L. Blonsky's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen L. Blonsky
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen L. Blonsky's NPI number?
Dr. Stephen L. Blonsky's NPI number is 1497855126. It was assigned on September 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen L. Blonsky?
Dr. Stephen L. Blonsky is a nephrologist in Mishawaka, Indiana. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Stephen L. Blonsky practice?
Dr. Blonsky practices at 5215 Holy Cross Pkwy, Mishawaka, IN 46545. Dr. Blonsky's primary practice is Elkhart Dialysis in Mishawaka, Indiana. Dmand AI also links Dr. Blonsky to 2 medical groups.
What is Dr. Stephen L. Blonsky's office phone number?
The practice phone on file for Dr. Blonsky is (574) 262-5295.
What is Dr. Stephen L. Blonsky's medical license number?
Dr. Blonsky holds Wisconsin license 27560.
What medical group is Dr. Stephen L. Blonsky part of?
Dr. Blonsky is linked to Kidney Care of Michiana. Dmand AI links Dr. Blonsky to 2 more medical groups.
Does Dr. Stephen L. Blonsky accept Medicare?
Yes. CMS data shows Dr. Blonsky billed Medicare for 47 services in 2024.
How many Medicare patients does Dr. Stephen L. Blonsky see?
CMS counts 33 Medicare patients who saw Dr. Blonsky in 2024, with an average age of 74.
What services does Dr. Stephen L. Blonsky bill to Medicare?
In 2024, Dr. Blonsky's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99232).
What drugs does Dr. Stephen L. Blonsky prescribe most?
In 2022 Medicare Part D data, Dr. Blonsky's most prescribed drugs by claims were Furosemide.
Has Dr. Stephen L. Blonsky received payments from drug or device companies?
CMS Open Payments shows $200 in general payments to Dr. Blonsky from 3 companies from 2016 to 2019. The largest total came from Amgen Inc.
How long has Dr. Stephen L. Blonsky been practicing?
Dr. Blonsky graduated from medical school in 1981, 45 years ago.
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