Dr. Robert S. Mocharnuk, MD
- Medicare services, 2024
- 151
- Medicare patients, 2024
- 65
- Part D claims, 2019
- 18
- Publications
- 3
- Clinical trials
- 1
- Practice address
- 315 W Carpenter St Fl 1 Fl 1, Springfield, IL 62702
- Practice phone
- Call (217) 545-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Siu Healthcare
Multi-specialty group site · Springfield, Illinois
Find Dr. Mocharnuk'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.
Dr. Robert S. Mocharnuk is a hematologist and oncologist in Springfield, Illinois
Dr. Mocharnuk practices at Siu Healthcare in Springfield, Illinois.
Dr. Mocharnuk's NPI, 1568499770, was assigned on June 26, 2006. Dr. Mocharnuk graduated from Texas Tech University Health Science Center School of Medicine in 1990. Dr. Mocharnuk holds Illinois license 036-118904.
- NPI
- 1568499770NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618061839
- NPI enumeration date
- June 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 545-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert S. Mocharnuk practices at Siu Healthcare in Springfield, Illinois
Dr. Mocharnuk's primary practice is Siu Healthcare, at 315 W Carpenter St Fl 1 Fl 1, Springfield, IL 62702. The practice phone is (217) 545-8000.
- Siu Healthcare315 W Carpenter St Fl 1 Fl 1, Springfield, IL 62702Phone(217) 545-8000
Source: Dmand AI Affiliation Data
Dr. Robert S. Mocharnuk is affiliated with 3 sites of care and 1 medical group
Dr. Mocharnuk's primary practice is Siu Healthcare in Springfield, Illinois. Dr. Mocharnuk is also affiliated with Springfield Memorial Hospital. The medical group on file is SIU Medicine. Dmand AI also links Dr. Mocharnuk to 1 more hospital, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert S. Mocharnuk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mocharnuk practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Siu Healthcare | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert S. Mocharnuk is one of 563 hematologists and oncologists in Illinois
Hematology and oncology is Dr. Mocharnuk's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dmand AI has Dr. Mocharnuk's licenses on file in 2 states: Illinois and California.
Specialties and state licenses
- Hematology and oncology, IllinoisPrimary
- Hematology (internal medicine), California
Hematologists and oncologists near Dr. Mocharnuk
Counts of hematologists and oncologists 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. Robert S. Mocharnuk billed Medicare for 151 services in 2024
CMS data shows 151 Medicare services from Dr. Mocharnuk across 4 procedure codes in 2024, for 65 Medicare patients. Medicare paid $13,282 for them.
Dr. Mocharnuk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2072024: 15127%
Where Dr. Mocharnuk's Medicare services took place, 2024
- In an office2416%
- In a facility12784%
Dr. Mocharnuk compared with the Illinois median for hematologists and oncologists, 2024
- Dr. Mocharnuk
- Illinois median
- Medicare services
- 151vs 1,05686% below
- Medicare patients
- 65vs 28277% below
- Part D claims
- 18vs 32895% below
Medians across 547 hematologists and oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Mocharnuk'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. Mocharnuk and other hematologists and oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert S. Mocharnuk treated 65 Medicare patients in 2024, average age 71
CMS counts 65 Medicare patients who saw Dr. Mocharnuk in 2024. The largest group is 65 to 74, with 26 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.54, 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. Mocharnuk's median patient age at 71, with 57% women.
Dr. Mocharnuk's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mocharnuk's Medicare patients by sex, 2024
- Women2742%
- Men3858%
Chronic conditions among Dr. Mocharnuk's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Ischemic heart disease48%
- Arthritis46%
- Cancer43%
- COPD38%
- Anxiety34%
- Atrial fibrillation31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mocharnuk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert S. Mocharnuk wrote 18 Medicare Part D claims in 2019
In 2019, Dr. Mocharnuk wrote 18 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $270 in total drug cost. In 2018, CMS named 358 claims across 11 drugs.
Dr. Mocharnuk's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 3582019: 1895%
Drugs named by CMS: 1 in 2019, 11 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Robert S. Mocharnuk scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Mocharnuk for performance year 2024, reported as part of a group. Dr. Mocharnuk accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
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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Dr. Robert S. Mocharnuk has 3 publications on record
Dmand AI links 3 papers to Dr. Mocharnuk, published from 2011 to 2022. The most frequent topics are Breast Neoplasms and Exercise Therapy. Dr. Mocharnuk's most frequent co-authors are Laura Quillian Rogers, Karen L. Hoelzer, MD and Aziz U. Khan, MD.
Dr. Mocharnuk's papers by year, 2011 to 2022
Topics Dr. Mocharnuk writes about most
- Breast Neoplasms
- Exercise Therapy
Dr. Mocharnuk's most frequent co-authors
- Laura Quillian Rogers2 shared papers
- Karen L. Hoelzer, MD1 shared paper
- Aziz U. Khan, MD1 shared paper
Recent publications by Dr. Mocharnuk
Contemp Clin Trials
See who Dr. Mocharnuk researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mocharnuk works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert S. Mocharnuk has worked on 1 clinical trial
Dmand AI links Dr. Mocharnuk to 1 clinical trial. Conditions studied include Urinary Bladder Neoplasms and Urinary Bladder Diseases.
Conditions in Dr. Mocharnuk's trials
- Urinary Bladder Neoplasms
- Urinary Bladder Diseases
Investigators on the most trials with Dr. Mocharnuk
Recent clinical trials with Dr. Mocharnuk
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Robert S. Mocharnuk received $188 in industry payments from 2016 to 2025
CMS Open Payments shows 3 general payments to Dr. Mocharnuk from 3 drug and device companies from 2016 to 2025. Education make up the largest share, 53% of the total. Janssen Pharmaceuticals, Inc paid the most, $99.
General payments to Dr. Mocharnuk by program year, 2016 to 2025
General payments to Dr. Mocharnuk by kind, 2016 to 2025
- Education$9953%
- Food and beverage$8947%
Companies that paid Dr. Mocharnuk the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert S. Mocharnuk graduated from Texas Tech University Health Science Center School of Medicine
Dr. Mocharnuk graduated from Texas Tech University Health Science Center School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert S. Mocharnuk'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (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 Dr. Robert S. Mocharnuk
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. Robert S. Mocharnuk's NPI number?
Dr. Robert S. Mocharnuk's NPI number is 1568499770. It was assigned on June 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Mocharnuk?
Dr. Robert S. Mocharnuk is a hematologist and oncologist in Springfield, Illinois. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Robert S. Mocharnuk practice?
Dr. Mocharnuk practices at 315 W Carpenter St Fl 1 Fl 1, Springfield, IL 62702. Dr. Mocharnuk's primary practice is Siu Healthcare in Springfield, Illinois. Dmand AI also links Dr. Mocharnuk to 1 hospital.
What is Dr. Robert S. Mocharnuk's office phone number?
The practice phone on file for Dr. Mocharnuk is (217) 545-8000.
What is Dr. Robert S. Mocharnuk's medical license number?
Dr. Mocharnuk holds Illinois license 036-118904, one of the licenses on file in 2 states.
Which states has Dr. Robert S. Mocharnuk been licensed in?
Dmand AI has state licenses on file for Dr. Mocharnuk in Illinois and California.
Which hospitals is Dr. Robert S. Mocharnuk affiliated with?
Dr. Mocharnuk is affiliated with Springfield Memorial Hospital. Dmand AI links Dr. Mocharnuk to 1 more hospital.
What medical group is Dr. Robert S. Mocharnuk part of?
Dr. Mocharnuk is linked to SIU Medicine.
Does Dr. Robert S. Mocharnuk accept Medicare?
Yes. CMS data shows Dr. Mocharnuk billed Medicare for 151 services in 2024, and Dr. Mocharnuk accepts Medicare assignment.
What is Dr. Robert S. Mocharnuk's MIPS score?
Dr. Mocharnuk's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Robert S. Mocharnuk see?
CMS counts 65 Medicare patients who saw Dr. Mocharnuk in 2024, with an average age of 71.
What services does Dr. Robert S. Mocharnuk bill to Medicare?
In 2024, Dr. Mocharnuk's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and office visit, established patient (99214).
Where did Dr. Robert S. Mocharnuk go to medical school?
Dr. Mocharnuk graduated from Texas Tech University Health Science Center School of Medicine in 1990.
What drugs does Dr. Robert S. Mocharnuk prescribe most?
In 2019 Medicare Part D data, Dr. Mocharnuk's most prescribed drugs by claims were Letrozole.
Has Dr. Robert S. Mocharnuk received payments from drug or device companies?
CMS Open Payments shows $188 in general payments to Dr. Mocharnuk from 3 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Robert S. Mocharnuk been practicing?
Dr. Mocharnuk graduated from medical school in 1990, 36 years ago.
Does Dr. Robert S. Mocharnuk do research?
Dmand AI links 3 publications to Dr. Mocharnuk, published from 2011 to 2022. Dr. Mocharnuk has worked on 1 clinical trial.
Who does Dr. Robert S. Mocharnuk publish with?
Dr. Mocharnuk's most frequent co-authors are Laura Quillian Rogers (2 shared papers), Karen L. Hoelzer, MD (1 shared paper) and Aziz U. Khan, MD (1 shared paper).
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