RODNEY MCMILLIN, M.D.
Family Medicine Physician in HARRIMAN, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
RODNEY MCMILLIN, M.D. reported a CMS MIPS final score of 85.699/100 — above the 83.1 national average — and filed 14,572 Medicare Part D claims in 2023.
- 85.699/100
- MIPS score · +3 vs avg
- 15K
- Part D claims, 2023
- 89%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
RODNEY MCMILLIN, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
86 49th percentile higher than 49% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
RODNEY MCMILLIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about RODNEY MCMILLIN, M.D.?
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Tennessee
How Family Medicine Physician compares to other specialties among Tennessee providers
Family Medicine Physician share within Tennessee
Family Medicine Physician is one of the more visible NUCC categories in Tennessee
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
RODNEY MCMILLIN, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 85.699/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) — 85.699/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Cost dim CMS Cost category
- Specialty volume Family Medicine Physician US NPIs
85.699/100 MIPS final score — 2.6 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Family Medicine Physician. Quality dim: 93.6605. Cost dim: 58.6695.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
RODNEY MCMILLIN, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 408 N ROANE ST, HARRIMAN, TN, 37748, with a listed phone of (865) 882-3745. NPI 1013901289 was issued on 09/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCMILLIN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 14,572 prescription claims written by this provider, covering 711 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 3.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.699/100 for the 2023 performance year (Quality 93.6605, Cost 58.6695), compared with the national average of 83.1.
Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1013901289 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/02/2005 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm RODNEY MCMILLIN, M.D.'s current license status, disciplinary history, and board certifications with the Tennessee Board of Medical Examiners in Tennessee before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Individual
Hospital and facility affiliations
Facilities where RODNEY MCMILLIN, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
11% brand-name claims vs 89% generic, on 14,572 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 28,229
- Total Day Supply
- 815,248
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $1.1M
- Generic Drug Cost
- $192K
- Opioid Claims
- 523 (3.6% rate)
- Antibiotic Claims
- 319
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.06
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 60, 65-74: 357, 75-84: 213, 85+: 81
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What RODNEY MCMILLIN, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
631 claims
- Levothyroxine Sodium
Levothyroxine Sodium
575 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
571 claims
- Atorvastatin Calcium
Atorvastatin Calcium
541 claims
- Losartan Potassium
Losartan Potassium
521 claims
- Pantoprazole Sodium
Pantoprazole Sodium
509 claims
- Metoprolol Succinate
Metoprolol Succinate
393 claims
- Alprazolam
Alprazolam
377 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 631 |
| Levothyroxine Sodium | 575 |
| Rosuvastatin Calcium | 571 |
| Atorvastatin Calcium | 541 |
| Losartan Potassium | 521 |
| Pantoprazole Sodium | 509 |
| Metoprolol Succinate | 393 |
| Alprazolam | 377 |
| Hydrochlorothiazide | 368 |
| Gabapentin | 305 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How RODNEY MCMILLIN, M.D. fits within the Family Medicine Physician landscape nationally.
RODNEY MCMILLIN, M.D.'s 14,572 claims are above the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as MCMILLIN.
Compare Family Medicine Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is RODNEY MCMILLIN, M.D.'s specialty? ▼
How much does RODNEY MCMILLIN, M.D. prescribe under Medicare Part D? ▼
What is RODNEY MCMILLIN, M.D.'s Medicare quality score? ▼
Where is RODNEY MCMILLIN, M.D. located? ▼
What is RODNEY MCMILLIN, M.D.'s NPI number? ▼
Does RODNEY MCMILLIN, M.D. prescribe more brand-name or generic drugs? ▼
Does RODNEY MCMILLIN, M.D. prescribe opioids? ▼
How many Family Medicine Physician providers are there in the US? ▼
What drugs does RODNEY MCMILLIN, M.D. prescribe most often? ▼
Does RODNEY MCMILLIN, M.D. accept Medicare? ▼
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology