John D. Kornmayer, DO
Family Medicine Physician · Columbus, NC
John D. Kornmayer, DO is a family medicine physician with a practice address in Columbus, North Carolina, and NPI 1992878227, issued on Nov 16, 2006. Check the license (North Carolina 9800939, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- John D. Kornmayer
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 9800939 NC
Self-reported in NPPES; status is on the state search - Practice location
- 45 E Mills St., Columbus, NC 28722
- Phone
- (828) 894-8213
- Enumerated
- Nov 16, 2006
- Record last updated
- Jul 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (828) 894-5775
- Medicaid ID
- 891155A NC
- Medicare enrollment
- Enrolled (PECOS I20080604000577); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,953 in North Carolina → Look up another NPI →
Verify John D. Kornmayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 9800939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average family medicine physician in 2024
6,314 Medicare Part D claims for 340 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 290 claims were for opioids.
Most prescribed
- Levothyroxine Sodium258 claims
- Amlodipine Besylate191 claims
- Rosuvastatin Calcium187 claims
- Atorvastatin Calcium163 claims
- Omeprazole154 claims
- Losartan Potassium118 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: $218.99
8 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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
- Henderson County Urgent Care Center IncArden, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John D. Kornmayer among 4,953 family medicine physician records in North Carolina
John D. Kornmayer, DO is one of 4,953 family medicine physician records with a practice address in North Carolina. 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 51% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2006 among the 3,104 with a school on file
- Record last updated2012 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Columbus
They are 10 of the 135 NPPES records with a practice address in Columbus, and 4,953 family medicine physician records in North Carolina.
All 4,953 in North Carolina → Every provider in Columbus → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kelli Adams, FNPColumbus, NC 287221992566939
- Daniel Hayes, MDColumbus, NC 287221003822206
- James Holleman, MDColumbus, NC 287221053308635
- Timothy Kelly, M.DColumbus, NC 287221700990488
- Ramses Masis, MDColumbus, NC 287221063705663
- Robert Palmer, M.D.Columbus, NC 287221982655346
- Jeffrey Viar, DOColumbus, NC 287221811998271
- Elizabeth York, MDColumbus, NC 287221902992936
Common questions
What is John D. Kornmayer, DO's NPI number?
John D. Kornmayer, DO's National Provider Identifier (NPI) is 1992878227, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Kornmayer, DO located?
The NPPES record lists a practice address at 45 E Mills St., Columbus, NC, 28722. Phone: (828) 894-8213. Providers update this record themselves, so call before visiting.
How can I verify John D. Kornmayer, DO's license?
NPPES lists North Carolina license number 9800939, 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 D. Kornmayer, DO prescribe under Medicare Part D?
In 2024, John D. Kornmayer, DO had 6,314 Medicare Part D claims for 340 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.