Mary C. Olszewski, DPM
- Medicare patients, 2024
- 982
- Part D claims, 2024
- 48
- MIPS score, 2024
- 74
- Hospital affiliations
- 1
- Industry payments
- $31
- Practice address
- 434 E Palatine Rd, Palatine, IL 60074
- Practice phone
- Call (847) 398-0900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mary Olszewski and Associates P C
Palatine, Illinois
Find Mary Olszewski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mary C. Olszewski is a foot surgery podiatrist in Palatine, Illinois
Mary Olszewski practices at Mary Olszewski and Associates P C in Palatine, Illinois.
Mary Olszewski's NPI, 1245274406, was assigned on June 16, 2006. Mary Olszewski holds Illinois license 016004266.
- NPI
- 1245274406NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254358070
- NPI enumeration date
- June 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 398-0900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary C. Olszewski practices at Mary Olszewski and Associates P C in Palatine, Illinois
Mary Olszewski's primary practice is Mary Olszewski and Associates P C, at 434 E Palatine Rd, Palatine, IL 60074 in Cook County. The practice phone is (847) 398-0900.
- Mary Olszewski and Associates P C434 E Palatine Rd, Palatine, IL 60074 · Cook CountyPhone(847) 398-0900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary C. Olszewski is affiliated with 3 sites of care and 1 medical group
Mary Olszewski's primary practice is Mary Olszewski and Associates P C in Palatine, Illinois. Mary Olszewski is also affiliated with Northwest Community Hospital. The medical group on file is Dr. Mary Olszewski & Associates. Dmand AI also links Mary Olszewski to 1 more group practice or clinic, 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 Mary C. Olszewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Olszewski practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mary Olszewski and Associates P C | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary C. Olszewski is one of 46 foot surgery podiatrists in Illinois
Foot surgery is Mary Olszewski's primary specialty in the NPI Registry, under taxonomy code 213ES0131X. Mary Olszewski is licensed in Illinois.
Specialties and state licenses
- Foot surgery podiatrist, IllinoisPrimary
Foot surgery podiatrists near Mary Olszewski
Counts of foot surgery podiatrists 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
Mary C. Olszewski treated 982 Medicare patients in 2024, average age 82
CMS counts 982 Medicare patients who saw Mary Olszewski in 2024. The largest group is 85 and over, with 405 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 2% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mary Olszewski's median patient age at 78, with 64% women.
Mary Olszewski's Medicare patients by age, 2024
Mary Olszewski's Medicare patients by sex, 2024
- Women62464%
- Men35836%
Chronic conditions among Mary Olszewski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease31%
- Diabetes30%
- Chronic kidney disease29%
- Atrial fibrillation27%
- Osteoporosis26%
Share of Medicare patients with each condition. A patient can have several.
Mary Olszewski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary C. Olszewski wrote 48 Medicare Part D claims in 2024
In 2024, Mary Olszewski wrote 48 Medicare Part D claims for 26 patients. 90% of them were for generic drugs.
Mary Olszewski's Part D claims by kind of drug, 2024
- Generic43 claims90%
- Brand-name and other5 claims10%
Drug classes CMS tracks in Mary Olszewski's Part D claims, 2024
- Antibiotics27%13 of 48 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mary C. Olszewski scored 74 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 74 out of 100 for Mary Olszewski for performance year 2024, reported individually. Mary Olszewski accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of removal of tissue by Mary Olszewski, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Mary Olszewski's MIPS scores, performance year 2024
- 74of 100Final score
- 48.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Mary Olszewski ranks in Medicare procedure volume
- Removal of nail tissue
- 65th percentile47 procedures
- Removal of tissue
- 71st percentile24 procedures
- Removal of skin lesions
- 63rd percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Mary C. Olszewski received $31 in industry payments in 2025
CMS Open Payments shows 2 general payments to Mary Olszewski from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $31.
Companies that paid Mary Olszewski the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mary C. Olszewski'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 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 (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 Mary C. Olszewski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary C. Olszewski's NPI number?
Mary C. Olszewski's NPI number is 1245274406. It was assigned on June 16, 2006, and it is active in the NPI Registry.
What does Mary C. Olszewski specialize in?
Mary C. Olszewski is a foot surgery podiatrist in Palatine, Illinois. The primary specialty in the NPI Registry is Foot Surgery Podiatrist (taxonomy code 213ES0131X).
Where does Mary C. Olszewski practice?
Mary Olszewski practices at 434 E Palatine Rd, Palatine, IL 60074. Mary Olszewski's primary practice is Mary Olszewski and Associates P C in Palatine, Illinois. Dmand AI also links Mary Olszewski to 1 group practice or clinic.
What is Mary C. Olszewski's office phone number?
The practice phone on file for Mary Olszewski is (847) 398-0900.
What is Mary C. Olszewski's medical license number?
Mary Olszewski holds Illinois license 016004266.
Which hospitals is Mary C. Olszewski affiliated with?
Mary Olszewski is affiliated with Northwest Community Hospital.
What medical group is Mary C. Olszewski part of?
Mary Olszewski is linked to Dr. Mary Olszewski & Associates.
Does Mary C. Olszewski accept Medicare?
Yes. CMS lists Mary Olszewski as accepting Medicare assignment.
What is Mary C. Olszewski's MIPS score?
Mary Olszewski's MIPS final score for performance year 2024 is 74 out of 100, reported individually.
How many Medicare patients does Mary C. Olszewski see?
CMS counts 982 Medicare patients who saw Mary Olszewski in 2024, with an average age of 82.
Has Mary C. Olszewski received payments from drug or device companies?
CMS Open Payments shows $31 in general payments to Mary Olszewski from 1 company from 2025 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Mary C. Olszewski been practicing?
Mary Olszewski graduated from medical school in 1984, 42 years ago.
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