Dr. David H. McMillen, MD
- Medicare services, 2024
- 584
- Medicare patients, 2024
- 383
- Part D claims, 2024
- 602
- Hospital affiliations
- 1
- Industry payments
- $242
- Practice address
- 222 22nd N Ave, Nashville, TN 37203
- Practice phone
- Call (629) 255-2620
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Heritage Medical Associates
Nashville, 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. David H. McMillen is a gastroenterologist in Nashville, Tennessee
Dr. McMillen practices at Heritage Medical Associates in Nashville, Tennessee.
Dr. McMillen's NPI, 1275524936, was assigned on November 2, 2005. Dr. McMillen graduated from University of Texas Medical School at Houston in 1999. Dr. McMillen holds Tennessee license MD35384.
- NPI
- 1275524936NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446290910
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (629) 255-2620
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David H. McMillen practices at Heritage Medical Associates in Nashville, Tennessee
Dr. McMillen's primary practice is Heritage Medical Associates, at 222 22nd N Ave, Nashville, TN 37203 in Davidson County. The practice phone is (629) 255-2620.
- Heritage Medical Associates222 22nd N Ave, Nashville, TN 37203 · Davidson CountyPhone(629) 255-2620
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David H. McMillen is affiliated with 3 sites of care and 1 medical group
Dr. McMillen's primary practice is Heritage Medical Associates in Nashville, Tennessee. Dr. McMillen is also affiliated with Ascension Saint Thomas Hospital West. The medical group on file is Heritage Medical Associates. Dmand AI also links Dr. McMillen to 1 more group practice or clinic, 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. David H. McMillen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McMillen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Heritage Medical Associates | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David H. McMillen is one of 331 gastroenterologists in Tennessee
Gastroenterology is Dr. McMillen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. McMillen is licensed in Tennessee.
Specialties and state licenses
- Gastroenterology, TennesseePrimary
Gastroenterologists near Dr. McMillen
Counts of gastroenterologists 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. David H. McMillen billed Medicare for 584 services in 2024
CMS data shows 584 Medicare services from Dr. McMillen across 15 procedure codes in 2024, for 383 Medicare patients. Medicare paid $59,164 for them.
Dr. McMillen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2312024: 30130%
- Office and hospital visits
- 2023: 1332024: 18237%
- Other services
- 2023: 772024: 726%
- Imaging
- 2023: 122024: 1525%
- Lab and pathology
- 2023: 02024: 14
Where Dr. McMillen's Medicare services took place, 2024
- In an office25544%
- In a facility32956%
Dr. McMillen compared with the Tennessee median for gastroenterologists, 2024
- Dr. McMillen
- Tennessee median
- Medicare services
- 584vs 6459% below
- Medicare patients
- 383vs 377Close to median
- Part D claims
- 509vs 59615% below
Medians across 330 gastroenterologists 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 gastroenterologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David H. McMillen treated 383 Medicare patients in 2024, average age 72
CMS counts 383 Medicare patients who saw Dr. McMillen in 2024. The largest group is 65 to 74, with 261 patients. 75% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 0.79, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McMillen's median patient age at 61, with 54% women.
Dr. McMillen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. McMillen's Medicare patients by sex, 2024
- Women20955%
- Men17445%
Chronic conditions among Dr. McMillen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis38%
- Ischemic heart disease27%
- Mood disorders19%
- Anxiety18%
- Osteoporosis18%
- Depression17%
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 61
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David H. McMillen wrote 602 Medicare Part D claims in 2024
In 2024, Dr. McMillen wrote 602 Medicare Part D claims for 152 patients. 86% of them were for generic drugs. CMS names the drug for 509 of them, across 13 drugs with 11 or more claims each, at $51,325 in total drug cost. In 2023, CMS named 458 claims across 14 drugs.
Dr. McMillen's Part D claims by kind of drug, 2024
- Generic520 claims86%
- Brand-name82 claims14%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4582024: 50911%
Drugs named by CMS: 13 in 2024, 14 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
Dr. David H. McMillen ranks in the 94th percentile for colonoscopy in Medicare
Dr. McMillen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 205 procedures of colonoscopy by Dr. McMillen, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. McMillen ranks in Medicare procedure volume
- Colonoscopy
- 94th percentile205 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 82nd percentile132 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David H. McMillen received $242 in industry payments from 2018 to 2025
CMS Open Payments shows 13 general payments to Dr. McMillen from 9 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 94% of the total. Abbvie Inc. paid the most, $57.
General payments to Dr. McMillen by program year, 2018 to 2025
General payments to Dr. McMillen by kind, 2018 to 2025
- Food and beverage$22794%
- Education$156%
Companies that paid Dr. McMillen the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David H. McMillen graduated from University of Texas Medical School at Houston
Dr. McMillen graduated from University of Texas Medical School at Houston in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David H. 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)Doctors and Clinicians Utilization Data (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. David H. 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. David H. McMillen's NPI number?
Dr. David H. McMillen's NPI number is 1275524936. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David H. McMillen?
Dr. David H. McMillen is a gastroenterologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. David H. McMillen practice?
Dr. McMillen practices at 222 22nd N Ave, Nashville, TN 37203. Dr. McMillen's primary practice is Heritage Medical Associates in Nashville, Tennessee. Dmand AI also links Dr. McMillen to 1 group practice or clinic.
What is Dr. David H. McMillen's office phone number?
The practice phone on file for Dr. McMillen is (629) 255-2620.
What is Dr. David H. McMillen's medical license number?
Dr. McMillen holds Tennessee license MD35384.
Which hospitals is Dr. David H. McMillen affiliated with?
Dr. McMillen is affiliated with Ascension Saint Thomas Hospital West.
What medical group is Dr. David H. McMillen part of?
Dr. McMillen is linked to Heritage Medical Associates.
Does Dr. David H. McMillen accept Medicare?
Yes. CMS data shows Dr. McMillen billed Medicare for 584 services in 2024, and Dr. McMillen accepts Medicare assignment.
How many Medicare patients does Dr. David H. McMillen see?
CMS counts 383 Medicare patients who saw Dr. McMillen in 2024, with an average age of 72.
What services does Dr. David H. McMillen bill to Medicare?
In 2024, Dr. McMillen's most billed Medicare services were surgery: digestive system (45380), surgery: digestive system (45385) and office visit, new patient (99203).
Show 4 more questionsShow fewer questions
Where did Dr. David H. McMillen go to medical school?
Dr. McMillen graduated from University of Texas Medical School at Houston in 1999.
What drugs does Dr. David H. McMillen prescribe most?
In 2024 Medicare Part D data, Dr. McMillen's most prescribed drugs by claims were Omeprazole, Dicyclomine HCl and Pantoprazole Sodium.
Has Dr. David H. McMillen received payments from drug or device companies?
CMS Open Payments shows $242 in general payments to Dr. McMillen from 9 companies from 2018 to 2025. The largest total came from Abbvie Inc.
How long has Dr. David H. McMillen been practicing?
Dr. McMillen graduated from medical school in 1999, 27 years ago.
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