Central Nervous System InfectionsClinical CompetenceCurriculum
Dr. Karen L. Roos, MD
NPI1306869334
- Medicare services, 2020
- 171
- Part D claims, 2021
- 35
- Publications
- 12
- Industry payments
- $14
- State license
- 1
- Practice address
- 355 W 16th St, Indianapolis, IN 46202-2207
- Practice phone
- Call (317) 963-7400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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Dr. Karen L. Roos is a neurologist in Indianapolis, Indiana
Dr. Roos practices in Indianapolis, Indiana.
Dr. Roos' NPI, 1306869334, was assigned on July 25, 2006. Dr. Roos holds Indiana license 01034313A.
NPI and contact details
- NPI
- 1306869334NPI Registry (opens in a new tab)
- NPI enumeration date
- July 25, 2006
- NPI status
- Active
- Practice phone
- (317) 963-7400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Karen L. Roos' practice address is in Indianapolis, Indiana
Dr. Roos' practice address in the NPI Registry is 355 W 16th St, Indianapolis, IN 46202-2207. The practice phone is (317) 963-7400.
- NPI Registry address355 W 16th St, Indianapolis, IN 46202-2207Phone(317) 963-7400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Karen L. Roos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roos practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Roos' practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen L. Roos is one of 338 neurologists in Indiana
Neurology is Dr. Roos' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Roos is licensed in Indiana.
Specialties and state licenses
- Neurology, IndianaPrimary
Neurologists near Dr. Roos
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. Karen L. Roos billed Medicare for 171 services in 2020
CMS data shows 171 Medicare services from Dr. Roos across 7 procedure codes in 2020. Medicare paid $10,014 for them.
Medicare services, 2020171
Paid by Medicare$10,014
Procedure codes7
Dr. Roos' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 2932020: 17142%
Where Dr. Roos' Medicare services took place, 2020
- In an office8550%
- In a facility8650%
Dr. Roos compared with the Indiana median for neurologists, 2020
- Dr. Roos
- Indiana median
- Medicare services
- 171vs 39256% below
- Part D claims
- 35vs 70695% below
Medians across 335 neurologists in Indiana with Dmand AI profiles that report each measure.
Dr. Roos' most billed Medicare procedure codes, 2020
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. Karen L. Roos' patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Roos' median patient age at 56, with 73% women.
Dr. Roos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women73%
- Men27%
Source: Dmand AI Patient Panel Data
Dr. Karen L. Roos wrote 35 Medicare Part D claims in 2021
In 2021, Dr. Roos wrote 35 Medicare Part D claims. They cover 2 drugs, with $144,067 in total drug cost. In 2020, CMS named 143 claims across 8 drugs.
Part D claims, 202135
Drugs named by CMS2
Total drug cost$144,067
Dr. Roos' most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 1432021: 3576%
Drugs named by CMS: 2 in 2021, 8 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Karen L. Roos has 12 publications on record
Dmand AI links 12 papers to Dr. Roos, published from 2010 to 2021. The most frequent topics are Diagnosis, Differential, Nervous System Diseases and Neurology. Dr. Roos has published most often in Neurology. Dr. Roos' most frequent co-authors are Kieren Anne Marr, Kiran Teresa Thakur, MD and Allen J. Aksamit, MD.
Papers12
Years published2010 to 2021
Dr. Roos' papers by year, 2010 to 2021
Topics Dr. Roos writes about most
- Diagnosis, Differential
- Nervous System Diseases
- Neurology
Dr. Roos' most frequent co-authors
- Kieren Anne Marr2 shared papers
- Kiran Teresa Thakur, MD2 shared papers
- Allen J. Aksamit, MD1 shared paper
Recent publications by Dr. Roos
Handb Clin Neurol
Anti-Infective AgentsC-Reactive ProteinDiagnosis, Differential
See who Dr. Roos researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Roos works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Karen L. Roos received $14 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Roos from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $14.
Companies that paid Dr. Roos the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Karen L. Roos'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 |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Karen L. Roos
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. Karen L. Roos' NPI number?
Dr. Karen L. Roos' NPI number is 1306869334. It was assigned on July 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen L. Roos?
Dr. Karen L. Roos is a neurologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Karen L. Roos practice?
Dr. Roos practices at 355 W 16th St, Indianapolis, IN 46202-2207.
What is Dr. Karen L. Roos' office phone number?
The practice phone on file for Dr. Roos is (317) 963-7400.
What is Dr. Karen L. Roos' medical license number?
Dr. Roos holds Indiana license 01034313A.
Does Dr. Karen L. Roos accept Medicare?
Yes. CMS data shows Dr. Roos billed Medicare for 171 services in 2020.
What services does Dr. Karen L. Roos bill to Medicare?
In 2020, Dr. Roos' most billed Medicare services were care management and other visits (99443), office visit, established patient (99214) and care management and other visits (99442).
What drugs does Dr. Karen L. Roos prescribe most?
In 2021 Medicare Part D data, Dr. Roos' most prescribed drugs by claims were Gammagard Liquid and Dextrose In Water.
Has Dr. Karen L. Roos received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Roos from 1 company from 2017 to 2017. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Karen L. Roos been practicing?
Dr. Roos' NPI was assigned in 2006.
Does Dr. Karen L. Roos do research?
Dmand AI links 12 publications to Dr. Roos, published from 2010 to 2021.
Who does Dr. Karen L. Roos publish with?
Dr. Roos' most frequent co-authors are Kieren Anne Marr (2 shared papers), Kiran Teresa Thakur, MD (2 shared papers) and Allen J. Aksamit, MD (1 shared paper).
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