Dr. Marc S. Katchen, MD
- Medicare services, 2024
- 1,196
- Medicare patients, 2024
- 718
- Part D claims, 2024
- 3,449
- Hospital affiliations
- 3
- Industry payments
- $3,680
- Practice address
- 3315 N Seminary St, Galesburg, IL 61401
- Practice phone
- Call (309) 683-5050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OSF Multi-Specialty Group
Galesburg, Illinois
Find Dr. Katchen'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. Marc S. Katchen is a neurologist in Galesburg, Illinois
Dr. Katchen practices at OSF Multi-Specialty Group in Galesburg, Illinois.
Dr. Katchen's NPI, 1447266564, was assigned on July 31, 2006. Dr. Katchen holds Illinois license 036078282.
- NPI
- 1447266564NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608958368
- NPI enumeration date
- July 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (309) 683-5050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc S. Katchen practices at OSF Multi-Specialty Group in Galesburg, Illinois
Dr. Katchen's primary practice is OSF Multi-Specialty Group, at 3315 N Seminary St, Galesburg, IL 61401 in Knox County. The practice phone is (309) 683-5050.
- OSF Multi-Specialty Group3315 N Seminary St, Galesburg, IL 61401 · Knox CountyPhone(309) 683-5050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marc S. Katchen is affiliated with 5 sites of care and 1 medical group
Dr. Katchen's primary practice is OSF Multi-Specialty Group in Galesburg, Illinois. Dr. Katchen is also affiliated with OSF St. Mary Medical Center. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Katchen to 2 more hospitals and 1 group practice or clinic, each 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 Dr. Marc S. Katchen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Katchen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSF Multi-Specialty Group | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc S. Katchen is one of 822 neurologists in Illinois
Neurology is Dr. Katchen's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Katchen is licensed in Illinois.
Specialties and state licenses
- Neurology, IllinoisPrimary
Neurologists near Dr. Katchen
Counts of neurologists 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. Marc S. Katchen billed Medicare for 1,196 services in 2024
CMS data shows 1,196 Medicare services from Dr. Katchen across 14 procedure codes in 2024, for 718 Medicare patients. Medicare paid $102,523 for them.
Dr. Katchen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8742024: 8621%
- Tests and treatments
- 2023: 2632024: 2418%
- Other services
- 2023: 702024: 9333%
Where Dr. Katchen's Medicare services took place, 2024
- In an office78566%
- In a facility41134%
Dr. Katchen compared with the Illinois median for neurologists, 2024
- Dr. Katchen
- Illinois median
- Medicare services
- 1,196vs 4013.0 times
- Medicare patients
- 718vs 2253.2 times
- Part D claims
- 3,269vs 31810.3 times
Medians across 747 neurologists in Illinois with Dmand AI profiles that report each measure.
Dr. Katchen'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
Dr. Marc S. Katchen treated 718 Medicare patients in 2024, average age 73
CMS counts 718 Medicare patients who saw Dr. Katchen in 2024. The largest group is 65 to 74, with 264 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Katchen's median patient age at 68, with 56% women.
Dr. Katchen's Medicare patients by age, 2024
Dr. Katchen's Medicare patients by sex, 2024
- Women37052%
- Men34848%
Chronic conditions among Dr. Katchen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis47%
- Anxiety31%
- Chronic kidney disease29%
- Diabetes29%
- Mood disorders27%
- Stroke or TIA25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Katchen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc S. Katchen wrote 3,449 Medicare Part D claims in 2024
In 2024, Dr. Katchen wrote 3,449 Medicare Part D claims for 416 patients. 94% of them were for generic drugs. CMS names the drug for 3,269 of them, across 61 drugs with 11 or more claims each, at $459,464 in total drug cost. In 2023, CMS named 3,017 claims across 59 drugs.
Dr. Katchen's Part D claims by kind of drug, 2024
- Generic3,228 claims94%
- Brand-name196 claims6%
- Other25 claims1%
Dr. Katchen'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. Katchen's Part D claims, 2024
- Opioids1%22 of 3,449 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: 3,0172024: 3,2698%
Drugs named by CMS: 61 in 2024, 59 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
How Dr. Marc S. Katchen takes part in Medicare
Dr. Katchen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marc S. Katchen received $3,680 in industry payments from 2016 to 2024
CMS Open Payments shows 68 general payments to Dr. Katchen from 24 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 74% of the total. LivaNova USA, Inc. paid the most, $1,495.
General payments to Dr. Katchen by program year, 2016 to 2024
General payments to Dr. Katchen by kind, 2016 to 2024
- Food and beverage$2,70974%
- Travel and lodging$97126%
Companies that paid Dr. Katchen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Marc S. Katchen'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 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) |
| 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. Marc S. Katchen
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. Marc S. Katchen's NPI number?
Dr. Marc S. Katchen's NPI number is 1447266564. It was assigned on July 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc S. Katchen?
Dr. Marc S. Katchen is a neurologist in Galesburg, Illinois. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Marc S. Katchen practice?
Dr. Katchen practices at 3315 N Seminary St, Galesburg, IL 61401. Dr. Katchen's primary practice is OSF Multi-Specialty Group in Galesburg, Illinois. Dmand AI also links Dr. Katchen to 2 hospitals and 1 group practice or clinic.
What is Dr. Marc S. Katchen's office phone number?
The practice phone on file for Dr. Katchen is (309) 683-5050.
What is Dr. Marc S. Katchen's medical license number?
Dr. Katchen holds Illinois license 036078282.
Which hospitals is Dr. Marc S. Katchen affiliated with?
Dr. Katchen is affiliated with OSF St. Mary Medical Center. Dmand AI links Dr. Katchen to 2 more hospitals.
What medical group is Dr. Marc S. Katchen part of?
Dr. Katchen is linked to OSF Multi-Specialty Group.
Does Dr. Marc S. Katchen accept Medicare?
Yes. CMS data shows Dr. Katchen billed Medicare for 1,196 services in 2024, and Dr. Katchen accepts Medicare assignment.
How many Medicare patients does Dr. Marc S. Katchen see?
CMS counts 718 Medicare patients who saw Dr. Katchen in 2024, with an average age of 73.
What services does Dr. Marc S. Katchen bill to Medicare?
In 2024, Dr. Katchen's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and hospital inpatient care (99222).
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What drugs does Dr. Marc S. Katchen prescribe most?
In 2024 Medicare Part D data, Dr. Katchen's most prescribed drugs by claims were Carbidopa-Levodopa, Topiramate and Gabapentin.
Has Dr. Marc S. Katchen received payments from drug or device companies?
CMS Open Payments shows $3,680 in general payments to Dr. Katchen from 24 companies from 2016 to 2024. The largest total came from LivaNova USA, Inc.
How long has Dr. Marc S. Katchen been practicing?
Dr. Katchen graduated from medical school in 1982, 44 years ago.
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