Dr. Gary Wayne Lethco, MD
- Medicare services, 2024
- 46
- Medicare patients, 2024
- 54
- Part D claims, 2024
- 204
- Hospital affiliations
- 1
- Industry payments
- $309
- Practice address
- 1924 Alcoa Highway, Knoxville, TN 37920
- Practice phone
- Call (865) 305-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lethco's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gary Wayne Lethco is a family medicine physician in Knoxville, Tennessee
Dr. Lethco practices at The University of Tennessee Medical Center in Knoxville, Tennessee, part of Ut Medical.
Dr. Lethco's NPI, 1851466247, was assigned on November 21, 2006. Dr. Lethco graduated from University of Tennessee, Hsc, College of Medicine in 1981. Dr. Lethco holds Tennessee license MD0000013536.
- NPI
- 1851466247NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880593441
- NPI enumeration date
- November 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 305-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary Wayne Lethco practices at The University of Tennessee Medical Center in Knoxville, Tennessee
Dr. Lethco's primary practice is The University of Tennessee Medical Center, at 1924 Alcoa Highway, Knoxville, TN 37920 in Knox County. The practice phone is (865) 305-9000.
- The University of Tennessee Medical Center1924 Alcoa Highway, Knoxville, TN 37920 · Knox CountyPhone(865) 305-9000
Source: Dmand AI Affiliation Data
Dr. Gary Wayne Lethco is affiliated with 1 site of care and 3 medical groups
Dr. Lethco's primary practice is The University of Tennessee Medical Center in Knoxville, Tennessee, part of Ut Medical. The medical group on file is University of Tennessee Health Science Center College of Nursing. Dmand AI also links Dr. Lethco to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary Wayne Lethco's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lethco practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Tennessee Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ut Medical and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gary Wayne Lethco is one of 2,430 family medicine physicians in Tennessee
Family medicine is Dr. Lethco's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Lethco is licensed in Tennessee.
Specialties and state licenses
- Family medicine, TennesseePrimary
Family medicine physicians near Dr. Lethco
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gary Wayne Lethco billed Medicare for 46 services in 2024
CMS data shows 46 Medicare services from Dr. Lethco across 1 procedure code in 2024, for 54 Medicare patients. Medicare paid $2,655 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lethco's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 4659%
Dr. Lethco compared with the Tennessee median for family medicine physicians, 2024
- Dr. Lethco
- Tennessee median
- Medicare services
- 46vs 63093% below
- Medicare patients
- 54vs 18170% below
- Part D claims
- 73vs 1,32294% below
Medians across 2,475 family medicine physicians in Tennessee with Dmand AI profiles that report each measure.
Dr. Lethco's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lethco and other family medicine physicians in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary Wayne Lethco treated 54 Medicare patients in 2024, average age 54
CMS counts 54 Medicare patients who saw Dr. Lethco in 2024. The largest group is under 65, with 35 patients. 75% of them have anxiety, and 75% have mood disorders. 65% are also on Medicaid. Their average risk score is 1.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lethco's median patient age at 53, with 62% women.
Dr. Lethco's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lethco's Medicare patients by sex, 2024
- Women2546%
- Men2954%
Chronic conditions among Dr. Lethco's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- High blood pressure69%
- Schizophrenia and other psychoses63%
- Bipolar disorder59%
- Depression59%
- High cholesterol56%
- Alcohol and drug use disorders54%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lethco's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary Wayne Lethco wrote 204 Medicare Part D claims in 2024
In 2024, Dr. Lethco wrote 204 Medicare Part D claims for 52 patients. 67% of them were for generic drugs. CMS names the drug for 73 of them, across 5 drugs with 11 or more claims each, at $32,141 in total drug cost. In 2023, CMS named 75 claims across 4 drugs.
Dr. Lethco's Part D claims by kind of drug, 2024
- Generic137 claims67%
- Brand-name and other67 claims33%
Dr. Lethco's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lethco's Part D claims, 2024
- Antibiotics6%13 of 204 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 752024: 733%
Drugs named by CMS: 5 in 2024, 4 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gary Wayne Lethco takes part in Medicare
Dr. Lethco accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gary Wayne Lethco received $309 in industry payments from 2023 to 2025
CMS Open Payments shows 4 general payments to Dr. Lethco from 3 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $168.
General payments to Dr. Lethco by program year, 2023 to 2025
Companies that paid Dr. Lethco the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gary Wayne Lethco graduated from University of Tennessee, Hsc, College of Medicine
Dr. Lethco graduated from University of Tennessee, Hsc, College of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary Wayne Lethco's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gary Wayne Lethco
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gary Wayne Lethco's NPI number?
Dr. Gary Wayne Lethco's NPI number is 1851466247. It was assigned on November 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary Wayne Lethco?
Dr. Gary Wayne Lethco is a family medicine physician in Knoxville, Tennessee. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Gary Wayne Lethco practice?
Dr. Lethco practices at 1924 Alcoa Highway, Knoxville, TN 37920. Dr. Lethco's primary practice is The University of Tennessee Medical Center in Knoxville, Tennessee, part of Ut Medical. Dmand AI also links Dr. Lethco to 2 medical groups.
What is Dr. Gary Wayne Lethco's office phone number?
The practice phone on file for Dr. Lethco is (865) 305-9000.
What is Dr. Gary Wayne Lethco's medical license number?
Dr. Lethco holds Tennessee license MD0000013536.
Which hospitals is Dr. Gary Wayne Lethco affiliated with?
Dr. Lethco practices at The University of Tennessee Medical Center in Knoxville, Tennessee.
What medical group is Dr. Gary Wayne Lethco part of?
Dr. Lethco is linked to University of Tennessee Health Science Center College of Nursing. Dmand AI links Dr. Lethco to 2 more medical groups.
Does Dr. Gary Wayne Lethco accept Medicare?
Yes. CMS data shows Dr. Lethco billed Medicare for 46 services in 2024, and Dr. Lethco accepts Medicare assignment.
How many Medicare patients does Dr. Gary Wayne Lethco see?
CMS counts 54 Medicare patients who saw Dr. Lethco in 2024, with an average age of 54.
What services does Dr. Gary Wayne Lethco bill to Medicare?
In 2024, Dr. Lethco's most billed Medicare services were hospital inpatient care (99232).
Show 4 more questionsShow fewer questions
Where did Dr. Gary Wayne Lethco go to medical school?
Dr. Lethco graduated from University of Tennessee, Hsc, College of Medicine in 1981.
What drugs does Dr. Gary Wayne Lethco prescribe most?
In 2024 Medicare Part D data, Dr. Lethco's most prescribed drugs by claims were Jardiance, Ozempic and Gabapentin.
Has Dr. Gary Wayne Lethco received payments from drug or device companies?
CMS Open Payments shows $309 in general payments to Dr. Lethco from 3 companies from 2023 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Gary Wayne Lethco been practicing?
Dr. Lethco graduated from medical school in 1981, 45 years ago.
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