Robert James Mazalewski, PA-C
- Medicare services, 2024
- 176
- Medicare patients, 2024
- 169
- Part D claims, 2024
- 117
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 3909 N Western Ave, Chicago, IL 60618
- Practice phone
- Call (815) 713-2738
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Physicians Immediate Care North Chicago
Chicago, Illinois
Find Robert Mazalewski'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.
Robert James Mazalewski is a physician assistant in Chicago, Illinois
Robert Mazalewski practices at Physicians Immediate Care North Chicago in Chicago, Illinois.
Robert Mazalewski's NPI, 1841587540, was assigned on June 30, 2011. Robert Mazalewski holds Illinois license 085007782.
- NPI
- 1841587540NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012186703
- NPI enumeration date
- June 30, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 713-2738
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert James Mazalewski practices at Physicians Immediate Care North Chicago in Chicago, Illinois
Robert Mazalewski's primary practice is Physicians Immediate Care North Chicago, at 3909 N Western Ave, Chicago, IL 60618 in Cook County. The practice phone is (815) 713-2738.
- Physicians Immediate Care North Chicago3909 N Western Ave, Chicago, IL 60618 · Cook CountyPhone(815) 713-2738
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Robert James Mazalewski is affiliated with 3 sites of care and 9 medical groups
Robert Mazalewski's primary practice is Physicians Immediate Care North Chicago in Chicago, Illinois. Robert Mazalewski is also affiliated with UF Health Shands Hospital. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Robert Mazalewski to 1 more hospital and 8 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Robert James Mazalewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert Mazalewski practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Physicians Immediate Care North Chicago | Available with a free account |
| +2 more sites and 8 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Robert James Mazalewski is one of 4,299 physician assistants in Illinois
Physician assistant is Robert Mazalewski's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Robert Mazalewski is board certified in 2011 - 2022 by the FL State PA License. Dmand AI has Robert Mazalewski's licenses on file in 2 states: Illinois and Florida.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
- Florida license
Clinical focus
Dmand AI lists acute sinusitis, ankle or foot injury, lower back pain, pneumonia, rash, skin cyst, upper respiratory infection (URI) and UTI among the conditions Robert Mazalewski treats.
Physician assistants near Robert Mazalewski
Counts of physician assistants 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
Robert James Mazalewski billed Medicare for 176 services in 2024
CMS data shows 176 Medicare services from Robert Mazalewski across 7 procedure codes in 2024, for 169 Medicare patients. Medicare paid $13,518 for them.
Robert Mazalewski's Medicare services by type, 2024
- Office and hospital visits146
- Tests and treatments18
- Lab and pathology12
Where Robert Mazalewski's Medicare services took place, 2024
- In an office6939%
- In a facility10761%
Robert Mazalewski compared with the Illinois median for physician assistants, 2024
- Robert Mazalewski
- Illinois median
- Medicare services
- 176vs 27235% below
- Medicare patients
- 169vs 11448% above
- Part D claims
- 26vs 20387% below
Medians across 2,606 physician assistants in Illinois with Dmand AI profiles that report each measure.
Robert Mazalewski'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Robert James Mazalewski treated 169 Medicare patients in 2024, average age 74
CMS counts 169 Medicare patients who saw Robert Mazalewski in 2024. The largest group is 65 to 74, with 62 patients. 74% of them have high cholesterol, and 70% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Robert Mazalewski's median patient age at 34, with 58% women.
Robert Mazalewski's Medicare patients by age, 2024
Robert Mazalewski's Medicare patients by sex, 2024
- Women10763%
- Men6237%
Chronic conditions among Robert Mazalewski's Medicare patients, 2024
- High cholesterol74%
- High blood pressure70%
- Arthritis53%
- Ischemic heart disease34%
- Anxiety33%
- Mood disorders33%
- Depression30%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
Robert Mazalewski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Robert James Mazalewski wrote 117 Medicare Part D claims in 2024
In 2024, Robert Mazalewski wrote 117 Medicare Part D claims for 99 patients. 93% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $87 in total drug cost.
Robert Mazalewski's Part D claims by kind of drug, 2024
- Generic109 claims93%
- Brand-name and other8 claims7%
Robert Mazalewski's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Robert Mazalewski's Part D claims, 2024
- Antibiotics44%52 of 117 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Robert James Mazalewski scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Robert Mazalewski for performance year 2024, reported as part of a group. Robert Mazalewski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Robert Mazalewski's MIPS scores, performance year 2024
- 93of 100Final score
- 86.8of 100Quality
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Robert James Mazalewski is board certified in 2011 - 2022
- Board certified in 2011 - 2022
- Board certified in 2020 - 2022
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Robert James Mazalewski'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 DataDmand AI Org Hierarchy 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)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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Robert James Mazalewski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Robert James Mazalewski's NPI number?
Robert James Mazalewski's NPI number is 1841587540. It was assigned on June 30, 2011, and it is active in the NPI Registry.
What does Robert James Mazalewski specialize in?
Robert James Mazalewski is a physician assistant in Chicago, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Robert James Mazalewski practice?
Robert Mazalewski practices at 3909 N Western Ave, Chicago, IL 60618. Robert Mazalewski's primary practice is Physicians Immediate Care North Chicago in Chicago, Illinois. Dmand AI also links Robert Mazalewski to 1 hospital and 8 medical groups.
What is Robert James Mazalewski's office phone number?
The practice phone on file for Robert Mazalewski is (815) 713-2738.
What is Robert James Mazalewski's medical license number?
Robert Mazalewski holds Illinois license 085007782, one of the licenses on file in 2 states.
Which states has Robert James Mazalewski been licensed in?
Dmand AI has state licenses on file for Robert Mazalewski in Illinois and Florida.
Which hospitals is Robert James Mazalewski affiliated with?
Robert Mazalewski is affiliated with UF Health Shands Hospital. Dmand AI links Robert Mazalewski to 1 more hospital.
What medical group is Robert James Mazalewski part of?
Robert Mazalewski is linked to OSF Multi-Specialty Group. Dmand AI links Robert Mazalewski to 8 more medical groups.
Does Robert James Mazalewski accept Medicare?
Yes. CMS data shows Robert Mazalewski billed Medicare for 176 services in 2024, and Robert Mazalewski accepts Medicare assignment.
What is Robert James Mazalewski's MIPS score?
Robert Mazalewski's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Robert James Mazalewski see?
CMS counts 169 Medicare patients who saw Robert Mazalewski in 2024, with an average age of 74.
Is Robert James Mazalewski board certified?
Yes. Robert Mazalewski is board certified in 2011 - 2022 by the FL State PA License.
What services does Robert James Mazalewski bill to Medicare?
In 2024, Robert Mazalewski's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and office visit, established patient (99213).
What drugs does Robert James Mazalewski prescribe most?
In 2024 Medicare Part D data, Robert Mazalewski's most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim and Amoxicillin-Clavulanate Potass.
How long has Robert James Mazalewski been practicing?
Robert Mazalewski graduated from medical school in 2011, 15 years ago.
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