David Llewellyn Smyth, MD
Neurology Physician · Chicago, IL
David Llewellyn Smyth, MD is a neurology physician with a practice address in Chicago, Illinois, and NPI 1245768241, issued on Jun 2, 2017. Check the license (Illinois 036-159984, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Llewellyn Smyth
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 036-159984 IL
125070566 IL
4301503976 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4600 N Ravenswood Ave, Chicago, IL 60640
- Phone
- (773) 561-7500
- Enumerated
- Jun 2, 2017
- Record last updated
- Jul 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20220708000944); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 952 in Illinois → Look up another NPI →
Also registered at 4600 N Ravenswood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brandon Bautista, DOFamily Medicine Physician1619727013
- Tiffany BlacklidgeStudent in an Organized Health Care Education/Training Program1235959511
- Jacob Broadrick, MSN RNRegistered Nurse1598576860
- Shannon BurkeFamily Medicine Physician1992682991
- Mariela Cano, M.D.Family Medicine Physician1053342204
- Diana Chavez, DOFamily Medicine Physician1225731391
Verify David Llewellyn Smyth 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 036-159984Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average neurology physician in 2024
294 Medicare Part D claims for 71 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin58 claims
- Carbidopa-Levodopa41 claims
- Propranolol Hcl40 claims
- Amitriptyline Hcl26 claims
- Donepezil Hcl24 claims
- Memantine Hcl15 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: $53.52
2 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
- Advocate Health And Hospitals CorporationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Llewellyn Smyth among 952 neurology physician records in Illinois
David Llewellyn Smyth, 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 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2017 · median 2006 among the 573 with a school on file
- Record last updated2022 · 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 Chicago → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Michele Delsignore, D.O.Chicago, IL 606401043495237
- Salem Jafilan, M.D.Chicago, IL 606401700273174
- David Klein, DOChicago, IL 606401003302159
- Faranak Najibi, M.DChicago, IL 606401063859775
- Shyam Puppala, MDChicago, IL 606401043390099
- Zilfah Younus, MDChicago, IL 606421538555099
- Amna Amin, MDChicago, IL 606371477244457
- Alireza Borghei, MDChicago, IL 606371528752078
Common questions
What is David Llewellyn Smyth, MD's NPI number?
David Llewellyn Smyth, MD's National Provider Identifier (NPI) is 1245768241, issued on Jun 2, 2017. An NPI identifies a provider in billing; it is not a license.
Where is David Llewellyn Smyth, MD located?
The NPPES record lists a practice address at 4600 N Ravenswood Ave, Chicago, IL, 60640. Phone: (773) 561-7500. Providers update this record themselves, so call before visiting.
How can I verify David Llewellyn Smyth, MD's license?
NPPES lists Illinois license number 036-159984, 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 David Llewellyn Smyth, MD prescribe under Medicare Part D?
In 2024, David Llewellyn Smyth, MD had 294 Medicare Part D claims for 71 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.