Isaac Douglass Werner, MD
Family Medicine Physician · Lewisburg, TN
Isaac Douglass Werner, MD is a family medicine physician with a practice address in Lewisburg, Tennessee, and NPI 1750024105, issued on Apr 14, 2022. Check the license (Tennessee 74573, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Isaac Douglass Werner
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 74573 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2291 Cornersville Hwy, Lewisburg, TN 37091
- Phone
- (931) 288-8030
- Enumerated
- Apr 14, 2022
- Record last updated
- Aug 18, 2025
- Fax
- (931) 288-8034
- Medicare enrollment
- Enrolled (PECOS I20250902004433); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,674 in Tennessee → Look up another NPI →
Also registered at 2291 Cornersville Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Holt, APRNFamily Nurse Practitioner1932624343
Verify Isaac Douglass Werner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 74573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average family medicine physician in 2024
957 Medicare Part D claims for 140 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Meloxicam47 claims
- Gabapentin45 claims
- Levothyroxine Sodium45 claims
- Atorvastatin Calcium40 claims
- Lisinopril27 claims
- Quetiapine Fumarate26 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
- Amg-Hillside LLCLewisburg, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac Douglass Werner among 2,674 family medicine physician records in Tennessee
Isaac Douglass Werner, MD 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 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2004 among the 1,685 with a school on file
- Record last updated2025 · 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).
5 family medicine physician records list a practice address in Lewisburg
They are 5 of the 225 NPPES records with a practice address in Lewisburg, and 2,674 family medicine physician records in Tennessee.
All 2,674 in Tennessee → Every provider in Lewisburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Charles Cantieri, DOLewisburg, TN 370911487282315
- Michael Davidson, D.O.Lewisburg, TN 370911740240902
- Kanthi Charan Narra, MDLewisburg, TN 370911982829297
- Elizabeth Rodriguez, MDLewisburg, TN 370911700447521
- Gary Gallant, M.D.Lebanon, TN 370901326057167
- James Bachstein, MDLebanon, TN 370871104802271
- Samuel Crutcher, M.D.Lebanon, TN 370871124150016
- John Fisk, MDLebanon, TN 370871790708097
Common questions
What is Isaac Douglass Werner, MD's NPI number?
Isaac Douglass Werner, MD's National Provider Identifier (NPI) is 1750024105, issued on Apr 14, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Isaac Douglass Werner, MD located?
The NPPES record lists a practice address at 2291 Cornersville Hwy, Lewisburg, TN, 37091. Phone: (931) 288-8030. Providers update this record themselves, so call before visiting.
How can I verify Isaac Douglass Werner, MD's license?
NPPES lists Tennessee license number 74573, 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 Isaac Douglass Werner, MD prescribe under Medicare Part D?
In 2024, Isaac Douglass Werner, MD had 957 Medicare Part D claims for 140 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.