NPI registry status
Active
2026 NPPES data Epilepsy Physician NPI 1750790838 MD
Verify on CMS → Mohammad Humayun, MD
Epilepsy Physician in Lebanon, 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 352 in Epilepsy 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
146
Medicare Part D claims · 31 beneficiaries · Epilepsy Physician avg: 878
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.1/100
▲ 14 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mohammad Humayun, MD reported a CMS MIPS final score of 97.1/100 - above the 83.1 national average - and filed 146 Medicare Part D claims in 2023.
- 97.1/100
- MIPS score · +14 vs avg
- 146
- Part D claims, 2023
- 91%
- 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.
Mohammad Humayun, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 15% higher than 85% 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
Where Mohammad Humayun, MD sits
This provider among epilepsy physician peers
Across the 118 epilepsy physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mohammad Humayun, MD writes more Part D claims than 16% of them and scores higher on MIPS quality than 78% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one epilepsy physician peer from a representative sample of 60; the gold marker is Mohammad Humayun, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mohammad Humayun, MD 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 Mohammad Humayun, MD?
High performer (top quartile)Primary specialty
Epilepsy Physician
Medicare Part D claims
146 83% vs specialty avg
MIPS final score
97.1/100 14 pts vs avg
Specialty distribution in Tennessee
How Epilepsy Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Mohammad Humayun, MD's 2023 MIPS final score plotted against the Epilepsy Physician national average
- MIPS Final Score
- 97.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Epilepsy Physician) - 97.1/100 vs national avg 83.1
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).
Mohammad Humayun, MD appears in the CMS NPPES registry as an Epilepsy Physician provider holding MD credentials at 1670 W MAIN ST, Lebanon, TN, 37087, with a listed phone of (615) 443-9970. NPI 1750790838 was issued on 08/04/2014.
Medicare Part D records for calendar year 2023 show 146 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $25K in drug spend, split 9% brand-name and 91% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.1/100 for the 2023 performance year (Quality 85.6), compared with the national average of 83.1.
Epilepsy Physician is a narrow specialty nationwide, with 352 enrolled providers across 43 states and an average of 878 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 | 1750790838 |
|---|---|
| Specialty | Epilepsy Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/04/2014 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.1279
Final Score
Avg: 83.1
85.6458
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Mohammad Humayun, 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).
Brand vs generic prescribing mix · Generic-heavy
Mohammad Humayun, MD - brand share 9.0%
Epilepsy Physician average
9% brand-name claims vs 91% generic, on 146 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.
146
Total Claims
$25K
Total Drug Cost
31
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 230
- Total Day Supply
- 6,759
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $16K
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 60.6 years
- Avg HCC Risk Score
- 2.60
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 17, 65-74: 11, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mohammad Humayun, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levetiracetam
Levetiracetam
21 claims
- Lamotrigine
Lamotrigine
16 claims
- Lacosamide
Lacosamide
14 claims
- Carbidopa-Levodopa
Carbidopa-Levodopa
13 claims
- Clonazepam
Clonazepam
13 claims
- Fycompa
Fycompa
11 claims
| Drug | Claims |
|---|---|
| Levetiracetam | 21 |
| Lamotrigine | 16 |
| Lacosamide | 14 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 13 |
| Clonazepam | 13 |
| Fycompa Perampanel | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Epilepsy Physician Overview
How Mohammad Humayun, MD fits within the Epilepsy Physician landscape nationally.
352
Epilepsy Physician Providers in US
43
States with Epilepsy Physician
878
Avg Claims per Provider
Mohammad Humayun, MD's 146 claims are below the specialty average of 878.
Nearby Epilepsy Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Humayun.
Dr. Bassel Abou-Khalil
MD
Nashville, TN
Namita Garg
Knoxville, TN
Dr. Juan Goyanes-Vasquez
M.D.
Knoxville, TN
Dr. Zachary Mills
MD
Chattanooga, TN
Dr. Amy Patterson
M.D.
Memphis, TN
Compare Epilepsy Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Epilepsy Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Mohammad Humayun, MD's specialty? ▼
Mohammad Humayun, MD specializes in Epilepsy Physician and practices in Lebanon, Tennessee. Credentials: MD.
How much does Mohammad Humayun, MD prescribe under Medicare Part D? ▼
In 2023, Mohammad Humayun, MD wrote 146 Medicare Part D claims totaling $25K in drug costs for 31 beneficiaries.
What is Mohammad Humayun, MD's Medicare quality score? ▼
Mohammad Humayun, MD has a CMS MIPS Final Score of 97.1/100 (Quality: 85.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mohammad Humayun, MD located? ▼
Mohammad Humayun, MD is located at 1670 W MAIN ST, Lebanon, TN, 37087. Phone: (615) 443-9970.
What is Mohammad Humayun, MD's NPI number? ▼
Mohammad Humayun, MD's National Provider Identifier (NPI) is 1750790838, issued on 08/04/2014.
Does Mohammad Humayun, MD prescribe more brand-name or generic drugs? ▼
Mohammad Humayun, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $16K in brand drug costs.
How many Epilepsy Physician providers are there in the US? ▼
There are 352 Epilepsy Physician providers across 43 states in the US. The average Epilepsy Physician provider writes 878 Medicare Part D claims per year.
What drugs does Mohammad Humayun, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mohammad Humayun, MD's most frequently prescribed drugs include Levetiracetam, Lamotrigine, Lacosamide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mohammad Humayun, MD accept Medicare? ▼
Mohammad Humayun, MD appears in CMS Medicare data with 146 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mohammad Humayun, MD's credentials? ▼
Mohammad Humayun, MD's NPI is 1750790838 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.