Dr. Julian M. Vassay, MD
- Medicare services, 2024
- 2,948
- Medicare patients, 2024
- 231
- Part D claims, 2024
- 10,060
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Practice address
- 1000 Health Center Drive P O Box 372, Mattoon, IL 61938
- Practice phone
- Call (217) 258-2513
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vassay'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. Julian M. Vassay is an internist in Mattoon, Illinois
Dr. Vassay practices at Sarah Bush Lincoln Health Center in Mattoon, Illinois, part of Sarah Bush Lincoln Health System.
Dr. Vassay's NPI, 1003922782, was assigned on August 22, 2006. Dr. Vassay graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990. Dr. Vassay holds Illinois license 036-092334.
- NPI
- 1003922782NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688715014
- NPI enumeration date
- August 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 258-2513
- 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. Julian M. Vassay practices at Sarah Bush Lincoln Health Center in Mattoon, Illinois
Dr. Vassay's primary practice is Sarah Bush Lincoln Health Center, at 1000 Health Center Drive P O Box 372, Mattoon, IL 61938 in Coles County. The practice phone is (217) 258-2513.
- Sarah Bush Lincoln Health Center1000 Health Center Drive P O Box 372, Mattoon, IL 61938 · Coles CountyPhone(217) 258-2513
Source: Dmand AI Affiliation Data
Dr. Julian M. Vassay is affiliated with 3 sites of care and 1 medical group
Dr. Vassay's primary practice is Sarah Bush Lincoln Health Center in Mattoon, Illinois, part of Sarah Bush Lincoln Health System. The medical group on file is Sarah Bush Lincoln. Dmand AI also links Dr. Vassay to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Julian M. Vassay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vassay practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sarah Bush Lincoln Health Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sarah Bush Lincoln Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Julian M. Vassay is one of 5,652 internists in Illinois
Internal medicine is Dr. Vassay's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Vassay is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Vassay
Counts of internists 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. Julian M. Vassay billed Medicare for 2,948 services in 2024
CMS data shows 2,948 Medicare services from Dr. Vassay across 15 procedure codes in 2024, for 231 Medicare patients. Medicare paid $105,025 for them. Every service was in an office.
Dr. Vassay's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,6202024: 1,80011%
- Office and hospital visits
- 2023: 5402024: 46614%
- Other services
- 2023: 1892024: 440133%
- Tests and treatments
- 2023: 2652024: 2429%
Dr. Vassay compared with the Illinois median for internists, 2024
- Dr. Vassay
- Illinois median
- Medicare services
- 2,948vs 5665.2 times
- Medicare patients
- 231vs 20811% above
- Part D claims
- 9,392vs 28433.1 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Vassay'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. Vassay and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Julian M. Vassay treated 231 Medicare patients in 2024, average age 75
CMS counts 231 Medicare patients who saw Dr. Vassay in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vassay's median patient age at 76, with 60% women.
Dr. Vassay's Medicare patients by age, 2024
Dr. Vassay's Medicare patients by sex, 2024
- Women12152%
- Men11048%
Chronic conditions among Dr. Vassay's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease32%
- Diabetes30%
- Anxiety26%
- Osteoporosis25%
- Heart failure20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vassay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Julian M. Vassay wrote 10,060 Medicare Part D claims in 2024
In 2024, Dr. Vassay wrote 10,060 Medicare Part D claims for 508 patients. 84% of them were for generic drugs. CMS names the drug for 9,392 of them, across 151 drugs with 11 or more claims each, at $1,207,816 in total drug cost. In 2023, CMS named 9,205 claims across 147 drugs.
Dr. Vassay's Part D claims by kind of drug, 2024
- Generic8,470 claims84%
- Brand-name1,484 claims15%
- Other106 claims1%
Dr. Vassay'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 Dr. Vassay's Part D claims, 2024
- Opioids2%243 of 10,060 claims
- Antibiotics2%185 of 10,060 claims
- Antipsychotics, patients 65 and over0%35 of 10,060 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9,2052024: 9,3922%
Drugs named by CMS: 151 in 2024, 147 in 2023.
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
Dr. Julian M. Vassay scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Vassay for performance year 2024, reported through an alternative payment model (APM). Dr. Vassay accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Vassay's MIPS scores, performance year 2024
- 89of 100Final score
- 69.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 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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Dr. Julian M. Vassay received $6,635 in industry payments from 2016 to 2025
CMS Open Payments shows 500 general payments to Dr. Vassay from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,056.
General payments to Dr. Vassay by program year, 2016 to 2025
General payments to Dr. Vassay by kind, 2016 to 2025
- Food and beverage$6,624100%
- Education$110%
Companies that paid Dr. Vassay 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. Julian M. Vassay graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Vassay graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Julian M. Vassay'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 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)Doctors and Clinicians Utilization Data (CMS) (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. Julian M. Vassay
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. Julian M. Vassay's NPI number?
Dr. Julian M. Vassay's NPI number is 1003922782. It was assigned on August 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Julian M. Vassay?
Dr. Julian M. Vassay is an internist in Mattoon, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Julian M. Vassay practice?
Dr. Vassay practices at 1000 Health Center Drive P O Box 372, Mattoon, IL 61938. Dr. Vassay's primary practice is Sarah Bush Lincoln Health Center in Mattoon, Illinois, part of Sarah Bush Lincoln Health System. Dmand AI also links Dr. Vassay to 1 group practice or clinic and 1 home health agency.
What is Dr. Julian M. Vassay's office phone number?
The practice phone on file for Dr. Vassay is (217) 258-2513.
What is Dr. Julian M. Vassay's medical license number?
Dr. Vassay holds Illinois license 036-092334.
Which hospitals is Dr. Julian M. Vassay affiliated with?
Dr. Vassay practices at Sarah Bush Lincoln Health Center in Mattoon, Illinois.
What medical group is Dr. Julian M. Vassay part of?
Dr. Vassay is linked to Sarah Bush Lincoln.
Does Dr. Julian M. Vassay accept Medicare?
Yes. CMS data shows Dr. Vassay billed Medicare for 2,948 services in 2024, and Dr. Vassay accepts Medicare assignment.
What is Dr. Julian M. Vassay's MIPS score?
Dr. Vassay's MIPS final score for performance year 2024 is 89 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Julian M. Vassay see?
CMS counts 231 Medicare patients who saw Dr. Vassay in 2024, with an average age of 75.
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What services does Dr. Julian M. Vassay bill to Medicare?
In 2024, Dr. Vassay's most billed Medicare services were injected or infused drug (J0897), medicare service (G2211) and office visit, established patient (99214).
Where did Dr. Julian M. Vassay go to medical school?
Dr. Vassay graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
What drugs does Dr. Julian M. Vassay prescribe most?
In 2024 Medicare Part D data, Dr. Vassay's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Julian M. Vassay received payments from drug or device companies?
CMS Open Payments shows $6,635 in general payments to Dr. Vassay from 31 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Julian M. Vassay been practicing?
Dr. Vassay graduated from medical school in 1990, 36 years ago.
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