Ryan Semko, D.O.
Family Medicine Physician · Oak Ridge, TN
Ryan Semko, D.O. is a family medicine physician with a practice address in Oak Ridge, Tennessee, and NPI 1881129443, issued on Apr 20, 2017. Check the license (Tennessee 4042, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ryan Semko
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 4042 TN
OT017598 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Vermont Ave, Oak Ridge, TN 37830
- Phone
- (865) 482-1777
- Enumerated
- Apr 20, 2017
- Record last updated
- Apr 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- Q058583 TN
- Medicare enrollment
- Enrolled (PECOS I20200824003391); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,674 in Tennessee → Look up another NPI →
Also registered at 100 Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Azel, MDFamily Medicine Physician1396794392
- Adam BattlesFamily Medicine Physician1689109324
- William Bell, M.D.Family Medicine Physician1659353647
- David Compton, M.D.Family Medicine Physician1184606261
- Shere Conway, M.D.Family Medicine Physician1619959798
- Olga Gardner, FNP-BCFamily Nurse Practitioner1013481522
Verify Ryan Semko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 4042Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,580 Medicare Part D claims for 707 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 295 claims were for opioids.
Most prescribed
- Atorvastatin Calcium390 claims
- Levothyroxine Sodium278 claims
- Gabapentin253 claims
- Prednisone222 claims
- Amlodipine Besylate219 claims
- Lisinopril215 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
- Covenant Medical Group IncOak Ridge, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Semko among 2,674 family medicine physician records in Tennessee
Ryan Semko, D.O. is one of 2,674 family medicine physician records with a practice address in Tennessee. 81% 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 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 1,685 with a school on file
- Record last updated2021 · 54% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 family medicine physician records list a practice address in Oak Ridge
They are 38 of the 904 NPPES records with a practice address in Oak Ridge, and 2,674 family medicine physician records in Tennessee.
All 2,674 in Tennessee → Every provider in Oak Ridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elizabeth Azel, MDOak Ridge, TN 378301396794392
- William Bell, M.D.Oak Ridge, TN 378301659353647
- Pamela Bridgeman, MDOak Ridge, TN 378301174559652
- David Compton, M.D.Oak Ridge, TN 378301184606261
- Shere Conway, M.D.Oak Ridge, TN 378301619959798
- David Heald, M.D.Oak Ridge, TN 378301578545372
- Daniel Lenoir, M.D.Oak Ridge, TN 378301861474967
- Terrence Meece, M.D.Oak Ridge, TN 378301477542033
Common questions
What is Ryan Semko, D.O.'s NPI number?
Ryan Semko, D.O.'s National Provider Identifier (NPI) is 1881129443, issued on Apr 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Semko, D.O. located?
The NPPES record lists a practice address at 100 Vermont Ave, Oak Ridge, TN, 37830. Phone: (865) 482-1777. Providers update this record themselves, so call before visiting.
How can I verify Ryan Semko, D.O.'s license?
NPPES lists Tennessee license number 4042, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Semko, D.O. prescribe under Medicare Part D?
In 2024, Ryan Semko, D.O. had 8,580 Medicare Part D claims for 707 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.