Dr. Jennifer Leigh McMillen, MD
- Medicare services, 2024
- 5,686
- Medicare patients, 2024
- 456
- Part D claims, 2024
- 10,315
- Hospital affiliations
- 5
- Industry payments
- $14,743
- Practice address
- 1275 Dick Lonas Rd, Knoxville, TN 37909
- Practice phone
- Call (865) 584-4747
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summit Medical Group
Knoxville, Tennessee
Find Dr. McMillen'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. Jennifer Leigh McMillen is an internist in Knoxville, Tennessee
Dr. McMillen practices at Summit Medical Group in Knoxville, Tennessee.
Dr. McMillen's NPI, 1295982098, was assigned on August 22, 2008. Dr. McMillen holds Tennessee license MD47406.
- NPI
- 1295982098NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163693177
- NPI enumeration date
- August 22, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 584-4747
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Leigh McMillen practices at Summit Medical Group in Knoxville, Tennessee
Dr. McMillen's primary practice is Summit Medical Group, at 1275 Dick Lonas Rd, Knoxville, TN 37909 in Knox County. The practice phone is (865) 584-4747.
- Summit Medical Group1275 Dick Lonas Rd, Knoxville, TN 37909 · Knox CountyPhone(865) 584-4747
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jennifer Leigh McMillen is affiliated with 9 sites of care and 2 medical groups
Dr. McMillen's primary practice is Summit Medical Group in Knoxville, Tennessee. Dr. McMillen is also affiliated with Covenant Health Parkwest. The medical group on file is Summit Medical Group. Dmand AI also links Dr. McMillen to 4 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jennifer Leigh McMillen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McMillen practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summit Medical Group | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer Leigh McMillen is one of 2,427 internists in Tennessee
Internal medicine is Dr. McMillen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. McMillen is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. McMillen
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. Jennifer Leigh McMillen billed Medicare for 5,686 services in 2024
CMS data shows 5,686 Medicare services from Dr. McMillen across 37 procedure codes in 2024, for 456 Medicare patients. Medicare paid $153,237 for them. Every service was in an office.
Dr. McMillen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,7192024: 2,8214%
- Office and hospital visits
- 2023: 9802024: 9582%
- Other services
- 2023: 3342024: 855156%
- Surgery
- 2023: 7042024: 7405%
- Tests and treatments
- 2023: 2772024: 2625%
- Imaging
- 2023: 1022024: 5051%
- Drugs given in the office
- 2023: 1,7402024: 0100%
Dr. McMillen compared with the Tennessee median for internists, 2024
- Dr. McMillen
- Tennessee median
- Medicare services
- 5,686vs 6718.5 times
- Medicare patients
- 456vs 2222.1 times
- Part D claims
- 9,602vs 33428.7 times
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. McMillen'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. McMillen and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Leigh McMillen treated 456 Medicare patients in 2024, average age 74
CMS counts 456 Medicare patients who saw Dr. McMillen in 2024. The largest group is 65 to 74, with 235 patients. 75% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McMillen's median patient age at 68, with 85% women.
Dr. McMillen's Medicare patients by age, 2024
Dr. McMillen's Medicare patients by sex, 2024
- Women36881%
- Men8819%
Chronic conditions among Dr. McMillen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure62%
- Arthritis40%
- Mood disorders26%
- Depression24%
- Anxiety22%
- Diabetes21%
- Osteoporosis20%
Share of Medicare patients with each condition. A patient can have several.
Dr. McMillen'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
- Women85%
- Men15%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jennifer Leigh McMillen wrote 10,315 Medicare Part D claims in 2024
In 2024, Dr. McMillen wrote 10,315 Medicare Part D claims for 722 patients. 87% of them were for generic drugs. CMS names the drug for 9,602 of them, across 150 drugs with 11 or more claims each, at $976,045 in total drug cost. In 2023, CMS named 9,611 claims across 146 drugs.
Dr. McMillen's Part D claims by kind of drug, 2024
- Generic8,926 claims87%
- Brand-name1,332 claims13%
- Other57 claims1%
Dr. McMillen'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. McMillen's Part D claims, 2024
- Opioids1%74 of 10,315 claims
- Antibiotics2%256 of 10,315 claims
- Antipsychotics, patients 65 and over0%34 of 10,315 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: 9,6112024: 9,602No change
Drugs named by CMS: 150 in 2024, 146 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. Jennifer Leigh McMillen takes part in Medicare
Dr. McMillen 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. Jennifer Leigh McMillen received $14,743 in industry payments from 2016 to 2025
CMS Open Payments shows 1,213 general payments to Dr. McMillen from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $2,014.
General payments to Dr. McMillen by program year, 2016 to 2025
General payments to Dr. McMillen by kind, 2016 to 2025
- Food and beverage$14,708100%
- Education$360%
Companies that paid Dr. McMillen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jennifer Leigh McMillen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Jennifer Leigh McMillen
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. Jennifer Leigh McMillen's NPI number?
Dr. Jennifer Leigh McMillen's NPI number is 1295982098. It was assigned on August 22, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Leigh McMillen?
Dr. Jennifer Leigh McMillen is an internist in Knoxville, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Leigh McMillen practice?
Dr. McMillen practices at 1275 Dick Lonas Rd, Knoxville, TN 37909. Dr. McMillen's primary practice is Summit Medical Group in Knoxville, Tennessee. Dmand AI also links Dr. McMillen to 4 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Jennifer Leigh McMillen's office phone number?
The practice phone on file for Dr. McMillen is (865) 584-4747.
What is Dr. Jennifer Leigh McMillen's medical license number?
Dr. McMillen holds Tennessee license MD47406.
Which hospitals is Dr. Jennifer Leigh McMillen affiliated with?
Dr. McMillen is affiliated with Covenant Health Parkwest. Dmand AI links Dr. McMillen to 4 more hospitals.
What medical group is Dr. Jennifer Leigh McMillen part of?
Dr. McMillen is linked to Summit Medical Group. Dmand AI links Dr. McMillen to 1 more medical group.
Does Dr. Jennifer Leigh McMillen accept Medicare?
Yes. CMS data shows Dr. McMillen billed Medicare for 5,686 services in 2024, and Dr. McMillen accepts Medicare assignment.
How many Medicare patients does Dr. Jennifer Leigh McMillen see?
CMS counts 456 Medicare patients who saw Dr. McMillen in 2024, with an average age of 74.
What services does Dr. Jennifer Leigh McMillen bill to Medicare?
In 2024, Dr. McMillen's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (80053) and office visit, established patient (99214).
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What drugs does Dr. Jennifer Leigh McMillen prescribe most?
In 2024 Medicare Part D data, Dr. McMillen's most prescribed drugs by claims were Levothyroxine Sodium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Jennifer Leigh McMillen received payments from drug or device companies?
CMS Open Payments shows $14,743 in general payments to Dr. McMillen from 58 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Jennifer Leigh McMillen been practicing?
Dr. McMillen graduated from medical school in 2008, 18 years ago.
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