NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1538166277 MD, PHD
Verify on CMS → Marshall Millman, MD, PHD
Pain Medicine (Anesthesiology) Physician in Manchester, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,094 in Pain Medicine (Anesthesiology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
12
Medicare Part D claims · Pain Medicine (Anesthesiology) Physician avg: 2K
Industry payments
$46.14
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Marshall Millman, MD, PHD filed 12 Medicare Part D claims in 2024 as a Pain Medicine (Anesthesiology) Physician in Manchester, Tennessee.
- 12
- Part D claims, 2024
- $46.14
- industry payments (Sunshine Act)
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Marshall Millman, MD, PHD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1538166277), first enumerated 07/07/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 12 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$46.14 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1538166277 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1538166277
- ENUM-LEGACY 2005
- TAX-NARROW 4,094
- RX-TRACE 12
- BOOK-THIN 65 in Tennessee
- PHOTO-ENUM Leslie Gunzenhaeuser · 2005
Marshall Millman, MD, PHD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
12 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Marshall Millman, MD, PHD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Marshall Millman, MD, PHD?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
12 99% vs specialty avg
Specialty distribution in Tennessee
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Tennessee providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pain Medicine (Anesthesiology) Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1538166277 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | MD, PHD |
| Gender | Male |
| NPI Issued | 07/07/2005 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Marshall Millman, MD, PHD. Source: openpaymentsdata.cms.gov.
Total received
$46
Largest payer
Collegium Pharmaceutical, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
12
Total Claims
$310
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 24
- Total Day Supply
- 671
- Brand Drug Cost
- $0
- Generic Drug Cost
- $310
Patient Demographics
- Average Patient Age
- 79.0 years
- Avg HCC Risk Score
- 0.63
More Pain Medicine (Anesthesiology) Physician in TN →
All providers in Tennessee →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Marshall Millman, MD, PHD fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,094
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,731
Avg Claims per Provider
Marshall Millman, MD, PHD's 12 claims are below the specialty average of 1,731.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Millman, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Millman.
One of 65 Pain Medicine (Anesthesiology) Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Michael Allison
D.O.
Crossville, TN
Dr. David Annand
M.D.
Knoxville, TN
Dr. Kenneth Bartholomew
MD
Nashville, TN
Dr. Michael Bearb
M.D.
Jackson, TN
Dr. Vidya Bethi
MD
Clarksville, TN
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marshall Millman, MD, PHD's specialty? ▼
Marshall Millman, MD, PHD specializes in Pain Medicine (Anesthesiology) Physician and practices in Manchester, Tennessee. Credentials: MD, PHD.
How much does Marshall Millman, MD, PHD prescribe under Medicare Part D? ▼
In 2024, Marshall Millman, MD, PHD wrote 12 Medicare Part D claims totaling $310 in drug costs for N/A beneficiaries.
Where is Marshall Millman, MD, PHD located? ▼
Marshall Millman, MD, PHD is located at 2345 MURFREESBORO HWY, Manchester, TN, 37355. Phone: (931) 728-5607.
What is Marshall Millman, MD, PHD's NPI number? ▼
Marshall Millman, MD, PHD's National Provider Identifier (NPI) is 1538166277, issued on 07/07/2005.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,094 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,731 Medicare Part D claims per year.
Does Marshall Millman, MD, PHD accept Medicare? ▼
Marshall Millman, MD, PHD appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marshall Millman, MD, PHD's credentials? ▼
Marshall Millman, MD, PHD's NPI is 1538166277 with credentials MD, PHD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.