Dr. Lucas Craig Littleton, DO
- Medicare services, 2024
- 907
- Medicare patients, 2024
- 288
- Part D claims, 2024
- 509
- Hospital affiliations
- 4
- Industry payments
- $779
- Practice address
- 1901 W Clinch Ave, Knoxville, TN 37916
- Practice phone
- Call (865) 541-1101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Littleton'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. Lucas Craig Littleton is an internist in Knoxville, Tennessee
Dr. Littleton practices at Fort Sanders Regional Medical Center in Knoxville, Tennessee, part of Covenant Health.
Dr. Littleton's NPI, 1013442185, was assigned on April 26, 2017. Dr. Littleton graduated from Lincoln Memorial University Medical Department in 2017. Dr. Littleton holds Tennessee license 3991.
- NPI
- 1013442185NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729409487
- NPI enumeration date
- April 26, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 541-1101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lucas Craig Littleton practices at Fort Sanders Regional Medical Center in Knoxville, Tennessee
Dr. Littleton's primary practice is Fort Sanders Regional Medical Center, at 1901 W Clinch Ave, Knoxville, TN 37916 in Knox County. The practice phone is (865) 541-1101.
- Fort Sanders Regional Medical Center1901 W Clinch Ave, Knoxville, TN 37916 · Knox CountyPhone(865) 541-1101
Source: Dmand AI Affiliation Data
Dr. Lucas Craig Littleton is affiliated with 6 sites of care
Dr. Littleton's primary practice is Fort Sanders Regional Medical Center in Knoxville, Tennessee, part of Covenant Health. Dr. Littleton is also affiliated with Covenant Health Parkwest. Dmand AI also links Dr. Littleton to 2 more hospitals, 1 home health agency and 1 skilled nursing facility, 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. Lucas Craig Littleton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Littleton practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fort Sanders Regional Medical Center | Available with a free account |
| +5 more affiliated sites | 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 Covenant Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lucas Craig Littleton is one of 2,427 internists in Tennessee
Internal medicine is Dr. Littleton's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Littleton is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Littleton
Counts of internists 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. Lucas Craig Littleton billed Medicare for 907 services in 2024
CMS data shows 907 Medicare services from Dr. Littleton across 6 procedure codes in 2024, for 288 Medicare patients. Medicare paid $62,355 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Littleton's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0742024: 90716%
Dr. Littleton compared with the Tennessee median for internists, 2024
- Dr. Littleton
- Tennessee median
- Medicare services
- 907vs 67135% above
- Medicare patients
- 288vs 22230% above
- Part D claims
- 226vs 33432% below
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Littleton'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.
Need commercial claims for Dr. Littleton?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Littleton and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lucas Craig Littleton treated 288 Medicare patients in 2024, average age 76
CMS counts 288 Medicare patients who saw Dr. Littleton in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.44, 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. Littleton's median patient age at 68, with 56% women.
Dr. Littleton's Medicare patients by age, 2024
Dr. Littleton's Medicare patients by sex, 2024
- Women15755%
- Men13145%
Chronic conditions among Dr. Littleton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Chronic kidney disease49%
- Diabetes48%
- Anxiety47%
- Mood disorders47%
- Atrial fibrillation45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Littleton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lucas Craig Littleton wrote 509 Medicare Part D claims in 2024
In 2024, Dr. Littleton wrote 509 Medicare Part D claims for 225 patients. 89% of them were for generic drugs. CMS names the drug for 226 of them, across 12 drugs with 11 or more claims each, at $14,049 in total drug cost. In 2023, CMS named 196 claims across 12 drugs.
Dr. Littleton's Part D claims by kind of drug, 2024
- Generic453 claims89%
- Brand-name and other56 claims11%
Dr. Littleton'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. Littleton's Part D claims, 2024
- Opioids5%23 of 509 claims
- Antibiotics15%74 of 509 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: 1962024: 22615%
Drugs named by CMS: 12 in 2024, 12 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. Lucas Craig Littleton takes part in Medicare
Dr. Littleton 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Lucas Craig Littleton received $779 in industry payments from 2020 to 2025
CMS Open Payments shows 26 general payments to Dr. Littleton from 5 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $391.
General payments to Dr. Littleton by program year, 2020 to 2025
Companies that paid Dr. Littleton the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lucas Craig Littleton graduated from Lincoln Memorial University Medical Department
Dr. Littleton graduated from Lincoln Memorial University Medical Department in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lucas Craig Littleton'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. Lucas Craig Littleton
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. Lucas Craig Littleton's NPI number?
Dr. Lucas Craig Littleton's NPI number is 1013442185. It was assigned on April 26, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Lucas Craig Littleton?
Dr. Lucas Craig Littleton is an internist in Knoxville, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lucas Craig Littleton practice?
Dr. Littleton practices at 1901 W Clinch Ave, Knoxville, TN 37916. Dr. Littleton's primary practice is Fort Sanders Regional Medical Center in Knoxville, Tennessee, part of Covenant Health. Dmand AI also links Dr. Littleton to 2 hospitals, 1 home health agency and 1 skilled nursing facility.
What is Dr. Lucas Craig Littleton's office phone number?
The practice phone on file for Dr. Littleton is (865) 541-1101.
What is Dr. Lucas Craig Littleton's medical license number?
Dr. Littleton holds Tennessee license 3991.
Which hospitals is Dr. Lucas Craig Littleton affiliated with?
Dr. Littleton practices at Fort Sanders Regional Medical Center in Knoxville, Tennessee. Dr. Littleton is also affiliated with Covenant Health Parkwest. Dmand AI links Dr. Littleton to 2 more hospitals.
Does Dr. Lucas Craig Littleton accept Medicare?
Yes. CMS data shows Dr. Littleton billed Medicare for 907 services in 2024, and Dr. Littleton accepts Medicare assignment.
How many Medicare patients does Dr. Lucas Craig Littleton see?
CMS counts 288 Medicare patients who saw Dr. Littleton in 2024, with an average age of 76.
What services does Dr. Lucas Craig Littleton bill to Medicare?
In 2024, Dr. Littleton's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99233).
Where did Dr. Lucas Craig Littleton go to medical school?
Dr. Littleton graduated from Lincoln Memorial University Medical Department in 2017.
Show 3 more questionsShow fewer questions
What drugs does Dr. Lucas Craig Littleton prescribe most?
In 2024 Medicare Part D data, Dr. Littleton's most prescribed drugs by claims were Atorvastatin Calcium, Pantoprazole Sodium and Carvedilol.
Has Dr. Lucas Craig Littleton received payments from drug or device companies?
CMS Open Payments shows $779 in general payments to Dr. Littleton from 5 companies from 2020 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Lucas Craig Littleton been practicing?
Dr. Littleton graduated from medical school in 2017, 9 years ago.
Selling to internal medicine practices?
See internists in Tennessee by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card