NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1508867789 MD
Verify on CMS → Robert Fallis, MD
Neurology Physician in Nashville, 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 20,467 in Neurology 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
3K
Medicare Part D claims · 505 beneficiaries · Neurology Physician avg: 1K
What the federal data shows
Robert Fallis, MD filed 2,673 Medicare Part D claims in 2024 as a Neurology Physician in Nashville, Tennessee.
- 3K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥87th
- 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 Robert Fallis, MD
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 1508867789), first enumerated 08/10/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,673 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1508867789 · Neurology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1508867789
- ENUM-LEGACY 2005
- TAX-MID 20K Neurology Physician
- RX-MID 2,673
- BOOK-THIN 370 in Tennessee
- PHOTO-ENUM Syed Shah, M.D. · 2005
Robert Fallis, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,673 ≥ 87th percentile 87% 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 certification likely (heuristic, not verified)
Robert Fallis, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Robert Fallis, MD?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
2,673 97% vs specialty avg
Specialty distribution in Tennessee
How Neurology 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 Neurology 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 | 1508867789 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/10/2005 |
Hospital and facility affiliations
Facilities where Robert Fallis, MD 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.
Vanderbilt University Medical Center
★★★★★ 5/5
Nashville, TN
Acute Care Hospitals
CMS CCN: 440039
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
2,673
Total Claims
$253K
Total Drug Cost
505
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,104.267
- Total Day Supply
- 116,709
- Generic Drug Cost
- $73K
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 67.8 years
- Avg HCC Risk Score
- 1.66
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 126, 65-74: 217, 75-84: 130, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Robert Fallis, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Tizanidine Hcl
Tizanidine Hcl
651 claims
- Cyclobenzaprine Hcl 141
Cyclobenzaprine Hcl
141 claims
- Rizatriptan 111
Rizatriptan
111 claims
- Topiramate 109
Topiramate
109 claims
- Trazodone Hcl 88
Trazodone Hcl
88 claims
- Baclofen 81
Baclofen
81 claims
- Prednisone 75
Prednisone
75 claims
- Levetiracetam 62
Levetiracetam
62 claims
| Drug | Claims |
|---|---|
| Tizanidine Hcl | 651 |
| Cyclobenzaprine Hcl | 141 |
| Rizatriptan Rizatriptan Benzoate | 111 |
| Topiramate | 109 |
| Trazodone Hcl | 88 |
| Baclofen | 81 |
| Prednisone | 75 |
| Levetiracetam | 62 |
| Metoprolol Succinate | 60 |
| Primidone | 60 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Robert Fallis, MD fits within the Neurology Physician landscape nationally.
20,467
Neurology Physician Providers in US
54
States with Neurology Physician
1,356
Avg Claims per Provider
Robert Fallis, MD's 2,673 claims are above the specialty average of 1,356.
Nationwide Neurology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Fallis, 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 Neurology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Fallis.
One of 370 Neurology Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Adele Ackell
MD
Chattanooga, TN
Dr. Lealani Acosta
MD
Nashville, TN
Dr. Paulo Acosta
M.D.
Nashville, TN
Dr. Bola Adamolekun
MD
Cordova, TN
Dr. Christopher Adams
MD
Memphis, TN
Compare Neurology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Robert Fallis, MD's specialty? ▼
Robert Fallis, MD specializes in Neurology Physician and practices in Nashville, Tennessee. Credentials: MD.
How much does Robert Fallis, MD prescribe under Medicare Part D? ▼
In 2024, Robert Fallis, MD wrote 2,673 Medicare Part D claims totaling $253K in drug costs for 505 beneficiaries.
Where is Robert Fallis, MD located? ▼
Robert Fallis, MD is located at 3601 THE VANDERBILT CLINIC, Nashville, TN, 37232. Phone: (615) 322-3000.
What is Robert Fallis, MD's NPI number? ▼
Robert Fallis, MD's National Provider Identifier (NPI) is 1508867789, issued on 08/10/2005.
How many Neurology Physician providers are there in the US? ▼
There are 20,467 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,356 Medicare Part D claims per year.
What drugs does Robert Fallis, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Robert Fallis, MD's most frequently prescribed drugs include Tizanidine Hcl, Cyclobenzaprine Hcl, Rizatriptan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Fallis, MD accept Medicare? ▼
Robert Fallis, MD appears in CMS Medicare data with 2,673 Part D claims and 505 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Fallis, MD's credentials? ▼
Robert Fallis, MD's NPI is 1508867789 with credentials MD. 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.