Cranial Nerve NeoplasmsMeningeal NeoplasmsMeningioma
Dr. Constantine L. Karras, MD
NPI1972044261PAC ID2163768367
- Part D claims, 2020
- 13
- Publications
- 51
- Hospital affiliations
- 5
- Industry payments
- $3,216
- Medical group
- 1
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Karras' 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. Constantine L. Karras is a neurosurgeon in Winfield, Illinois
Dr. Karras practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Dr. Karras' NPI, 1972044261, was assigned on March 20, 2017. Dr. Karras holds Ohio license 35.150613.
NPI and contact details
- NPI
- 1972044261NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163768367
- NPI enumeration date
- March 20, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Constantine L. Karras practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Dr. Karras' primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Dr. Constantine L. Karras is affiliated with 7 sites of care and 1 medical group
Dr. Karras' primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dr. Karras is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Karras to 3 more hospitals, 1 breast imaging center and 1 clinical lab, each named with a free account.
Northwestern Memorial HospitalNorthwestern Medical Faculty Foundation3 hospitalsNames with a free account1 breast imaging centerName with a free account1 clinical labName with a free account
See all 8 affiliations for Dr. KarrasSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Constantine L. Karras' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karras practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Constantine L. Karras is one of 303 neurosurgeons in Illinois
Neurological surgery is Dr. Karras' primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Karras' licenses on file in 2 states: Ohio and Illinois.
Specialties and state licenses
- Neurological surgery, OhioPrimary
- Illinois license
Neurosurgeons near Dr. Karras
Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.
303neurosurgeons in Illinois
5neurosurgeons in Winfield
4neurosurgeons at Northwestern Medicine Central DuPage HospitalSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Constantine L. Karras' patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Karras' median patient age at 69, with 57% women.
Dr. Karras' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Constantine L. Karras wrote 13 Medicare Part D claims in 2020
In 2020, Dr. Karras wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $47 in total drug cost. In 2019, CMS named 13 claims across 1 drug.
Part D claims, 202013
Drugs named by CMS1
Total drug cost$47
Dr. Karras' most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 132020: 13No change
Drugs named by CMS: 1 in 2020, 1 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Constantine L. Karras ranks in the 43rd percentile for spinal fusion in Medicare
Dr. Karras accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Karras as offering telehealth. CMS counts 28 procedures of spinal fusion by Dr. Karras, more than 43% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Karras ranks in Medicare procedure volume
- Spinal fusion
- 43rd percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Laminectomy or laminotomy (partial removal of spine bones): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Constantine L. Karras has 51 publications on record
Dmand AI links 51 papers to Dr. Karras, published from 2014 to 2025. 2022 was the busiest year, with 10. The most frequent topics are Neurosurgical Procedures, Radiosurgery and Postoperative Complications. Dr. Karras has published most often in World Neurosurg. Dr. Karras' most frequent co-authors are Pavlos Texakalidis, MD, Stephen T. Magill, MD, PhD and Nader S. Dahdaleh, MD.
Papers51
Years published2014 to 2025
Dr. Karras' papers by year, 2014 to 2025
Topics Dr. Karras writes about most
- Neurosurgical Procedures
- Radiosurgery
- Postoperative Complications
- Meningeal Neoplasms
- Meningioma
- Neurosurgery
- Craniotomy
- Neuroma, Acoustic
Dr. Karras' most frequent co-authors
- Pavlos Texakalidis, MD13 shared papers
- Stephen T. Magill, MD, PhD12 shared papers
- Nader S. Dahdaleh, MD10 shared papers
Recent publications by Dr. Karras
Embolization, TherapeuticIntracranial Arteriovenous MalformationsRadiosurgery
Brachial PlexusBrachial Plexus NeuropathiesHand
Facial NerveMicrosurgeryNeuroma, Acoustic
See who Dr. Karras researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karras works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Constantine L. Karras received $3,216 in industry payments from 2021 to 2025
CMS Open Payments shows 9 general payments to Dr. Karras from 3 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 90% of the total. Alphatec Spine, Inc paid the most, $3,051.
General payments to Dr. Karras by program year, 2021 to 2025
General payments to Dr. Karras by kind, 2021 to 2025
$3.2Kin total
- Travel and lodging$2,90790%
- Food and beverage$30910%
Companies that paid Dr. Karras the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Constantine L. Karras'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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)Doctors and Clinicians Utilization Data (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 |
| 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. Constantine L. Karras
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. Constantine L. Karras' NPI number?
Dr. Constantine L. Karras' NPI number is 1972044261. It was assigned on March 20, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Constantine L. Karras?
Dr. Constantine L. Karras is a neurosurgeon in Winfield, Illinois. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Constantine L. Karras practice?
Dr. Karras practices at 25 North Winfield Road, Winfield, IL 60190. Dr. Karras' primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Karras to 3 hospitals, 1 breast imaging center and 1 clinical lab.
What is Dr. Constantine L. Karras' office phone number?
The practice phone on file for Dr. Karras is (630) 682-1600.
What is Dr. Constantine L. Karras' medical license number?
Dr. Karras holds Ohio license 35.150613, one of the licenses on file in 2 states.
Which states has Dr. Constantine L. Karras been licensed in?
Dmand AI has state licenses on file for Dr. Karras in Ohio and Illinois.
Which hospitals is Dr. Constantine L. Karras affiliated with?
Dr. Karras practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Dr. Karras is also affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Karras to 3 more hospitals.
What medical group is Dr. Constantine L. Karras part of?
Dr. Karras is linked to Northwestern Medical Faculty Foundation.
Does Dr. Constantine L. Karras accept Medicare?
Yes. CMS lists Dr. Karras as accepting Medicare assignment.
Does Dr. Constantine L. Karras offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Karras as offering telehealth services.
Show 5 more questionsShow fewer questions
What drugs does Dr. Constantine L. Karras prescribe most?
In 2020 Medicare Part D data, Dr. Karras' most prescribed drugs by claims were Cephalexin.
Has Dr. Constantine L. Karras received payments from drug or device companies?
CMS Open Payments shows $3,216 in general payments to Dr. Karras from 3 companies from 2021 to 2025. The largest total came from Alphatec Spine, Inc.
How long has Dr. Constantine L. Karras been practicing?
Dr. Karras graduated from medical school in 2017, 9 years ago.
Does Dr. Constantine L. Karras do research?
Dmand AI links 51 publications to Dr. Karras, published from 2014 to 2025.
Who does Dr. Constantine L. Karras publish with?
Dr. Karras' most frequent co-authors are Pavlos Texakalidis, MD (13 shared papers), Stephen T. Magill, MD, PhD (12 shared papers) and Nader S. Dahdaleh, MD (10 shared papers).
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