Karna D. Sherwood, MD
Neurology Physician · Alton, IL
Karna D. Sherwood, MD is a neurology physician with a practice address in Alton, Illinois, and NPI 1619105293, issued on Jun 23, 2009. Check the license (Illinois 036133471, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Karna D. Sherwood
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 036133471 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2 Saint Anthonys Way Ste 300, Alton, IL 62002
- Phone
- (618) 463-0227
- Enumerated
- Jun 23, 2009
- Record last updated
- Oct 2, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131009001426); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 952 in Illinois → Look up another NPI →
Also registered at 2 Saint Anthonys Way Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Emmerling, MDUrology Physician1841810454
Verify Karna D. Sherwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036133471Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average neurology physician in 2024
4,982 Medicare Part D claims for 695 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 70 claims were for opioids.
Most prescribed
- Donepezil Hcl421 claims
- Carbidopa-Levodopa312 claims
- Gabapentin304 claims
- Levetiracetam277 claims
- Lamotrigine237 claims
- Topiramate221 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $44.47
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Osf Multi-Specialty GroupAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karna D. Sherwood among 952 neurology physician records in Illinois
Karna D. Sherwood, MD is one of 952 neurology physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 47% of them.
- NPI issued2009 · 47% of these records are older, 51% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2009 · median 2006 among the 573 with a school on file
- Record last updated2014 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Illinois
There are 952 neurology physician records in Illinois.
All 952 in Illinois → Every provider in Alton → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Michael Liu, MDAlton, IL 620021851402721
- Ajitesh Rai, M.D.Alton, IL 620021205883097
- Mohammad Sajed, M.D.Alton, IL 620021396785127
- Arbha Vongsvivut, MDAlton, IL 620021639206154
- Riaz Naseer, M.D.Maryville, IL 620621245345537
- Sajjan Nemani, MDMaryville, IL 620621649220542
- Fatima Alao, M.D.Mattoon, IL 619381700047917
- Maria Lawless, M.D.Mattoon, IL 619381457888646
Common questions
What is Karna D. Sherwood, MD's NPI number?
Karna D. Sherwood, MD's National Provider Identifier (NPI) is 1619105293, issued on Jun 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karna D. Sherwood, MD located?
The NPPES record lists a practice address at 2 Saint Anthonys Way Ste 300, Alton, IL, 62002. Phone: (618) 463-0227. Providers update this record themselves, so call before visiting.
How can I verify Karna D. Sherwood, MD's license?
NPPES lists Illinois license number 036133471, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karna D. Sherwood, MD prescribe under Medicare Part D?
In 2024, Karna D. Sherwood, MD had 4,982 Medicare Part D claims for 695 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.