John Gregory Lyall, M.D.
Internal Medicine Physician · Winston Salem, NC
John Gregory Lyall, M.D. is an internal medicine physician with a practice address in Winston Salem, North Carolina, and NPI 1417165903, issued on May 18, 2007. Check the license (North Carolina 2007-00989, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Gregory Lyall
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2007-00989 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1381 Westgate Center Dr, Winston Salem, NC 27103
- Phone
- (336) 718-0100
- Enumerated
- May 18, 2007
- Record last updated
- Oct 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (336) 718-0120
- Medicaid ID
- 1417165903 NC
- Medicare enrollment
- Enrolled (PECOS I20130826000874); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 1381 Westgate Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brynlee Anderson, PAPhysician Assistant1154913010
- Ashley Chaplin, M.D.Infectious Disease Physician1801021225
- Edwin Chee, MDInternal Medicine Physician1881674968
- Vahini Chundi, MDInfectious Disease Physician1336637255
- Sharyn Conrad, DNP, FNP-BCFamily Nurse Practitioner1730180928
- Timothy Darnell, DOInfectious Disease Physician1467678979
Verify John Gregory Lyall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2007-00989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,182 Medicare Part D claims for 571 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 34 claims were for opioids.
Most prescribed
- Atorvastatin Calcium759 claims
- Amlodipine Besylate497 claims
- Lisinopril361 claims
- Rosuvastatin Calcium316 claims
- Losartan Potassium311 claims
- Levothyroxine Sodium260 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.
Bills Medicare through one group practice
- Forsyth Memorial Hospital IncWinston Salem, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gregory Lyall among 4,056 internal medicine physician records in North Carolina
John Gregory Lyall, M.D. is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 43% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2004 · median 2004 among the 2,706 with a school on file
- Record last updated2020 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
218 internal medicine physician records list a practice address in Winston Salem
They are 218 of the 10,040 NPPES records with a practice address in Winston Salem, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Winston Salem → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tamas Bathory, MDWinston Salem, NC 271031699754689
- Robert Bloomfield, MDMSWinston Salem, NC 271031962496810
- Bruce Brasher, MDWinston Salem, NC 271031992783971
- Edwin Chee, MDWinston Salem, NC 271031881674968
- David Collins, M.D.Winston Salem, NC 271031962407072
- Peter Cullen, MDWinston Salem, NC 271031568442580
- Jennifer Day, MDWinston Salem, NC 271031427038488
- James Dilley, M.D.Winston Salem, NC 271031801895339
Common questions
What is John Gregory Lyall, M.D.'s NPI number?
John Gregory Lyall, M.D.'s National Provider Identifier (NPI) is 1417165903, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Gregory Lyall, M.D. located?
The NPPES record lists a practice address at 1381 Westgate Center Dr, Winston Salem, NC, 27103. Phone: (336) 718-0100. Providers update this record themselves, so call before visiting.
How can I verify John Gregory Lyall, M.D.'s license?
NPPES lists North Carolina license number 2007-00989, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Gregory Lyall, M.D. prescribe under Medicare Part D?
In 2024, John Gregory Lyall, M.D. had 7,182 Medicare Part D claims for 571 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.