NPI registry status
Active
2026 NPPES data Specialist NPI 1205845468 MD
Verify on CMS → Mohammad Assaf, MD
Specialist in Memphis, 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 69,658 in Specialist, 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
5K
Medicare Part D claims · 740 beneficiaries · Specialist avg: 1K
Generic prescribing
93%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
12.5/100
▼ 71 pts below national avg 83.1 · Penalty band
Industry payments
$1.7K
12 payments · CMS Open Payments (Sunshine Act)
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 Assaf, MD reported a CMS MIPS final score of 12.5/100 - below the 83.1 national average - and filed 4,796 Medicare Part D claims in 2023.
- 12.5/100
- MIPS score · -71 vs avg
- 5K
- Part D claims, 2023
- 93%
- generic prescribing
- $1.7K
- industry payments (Sunshine Act)
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 Assaf, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
13 2nd percentile higher than 2% 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 Assaf, MD sits
This provider among specialist peers
Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Mohammad Assaf, MD writes more Part D claims than 89% of them and scores higher on MIPS quality than 8% - placing this provider in the high-volume, lower-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 specialist peer from a representative sample of 60; the gold marker is Mohammad Assaf, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Mohammad Assaf, MD?
Below national averagePrimary specialty
Specialist
Medicare Part D claims
4,796 225% vs specialty avg
MIPS final score
12.5/100 70.6 pts vs avg
Specialty distribution in Tennessee
How Specialist compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Mohammad Assaf, MD's 2023 MIPS final score plotted against the Specialist national average
- MIPS Final Score
- 12.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Specialist) - 12.5/100 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 Assaf, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 6005 PARK AVE, Memphis, TN, 38119, with a listed phone of (901) 683-8448. NPI 1205845468 was issued on 08/05/2006.
Medicare Part D records for calendar year 2023 show 4,796 prescription claims written by this provider, covering 740 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 6% brand-name and 93% generic by claim count, with an opioid prescribing rate of 0.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 12.5/100 for the 2023 performance year (Quality 0, Cost 41.5), compared with the national average of 83.1.
Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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 | 1205845468 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/05/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
12.4572
Final Score
Avg: 83.1
0
Quality
41.524
Cost
Reporting: Individual
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 Mohammad Assaf, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.7K
Largest payer
LivaNova USA, 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.
Brand vs generic prescribing mix · Generic-heavy
Mohammad Assaf, MD - brand share 6.0%
Specialist average
6% brand-name claims vs 93% generic, on 4,796 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.
4,796
Total Claims
$1.6M
Total Drug Cost
740
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,101
- Total Day Supply
- 206,419
- Brand vs Generic
- 6% brand / 93% generic
- Brand Drug Cost
- $1.4M
- Generic Drug Cost
- $202K
- Opioid Claims
- 21 (0.4% rate)
Patient Demographics
- Average Patient Age
- 66.1 years
- Avg HCC Risk Score
- 1.65
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 264, 65-74: 284, 75-84: 153, 85+: 39
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mohammad Assaf, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
774 claims
- Levetiracetam
Levetiracetam
584 claims
- Donepezil Hcl
Donepezil Hcl
478 claims
- Memantine Hcl 243
Memantine Hcl
243 claims
- Topiramate 236
Topiramate
236 claims
- Pregabalin 193
Pregabalin
193 claims
- Primidone 168
Primidone
168 claims
- Phenytoin Sodium E… 138
Phenytoin Sodium Extended
138 claims
| Drug | Claims |
|---|---|
| Gabapentin | 774 |
| Levetiracetam | 584 |
| Donepezil Hcl | 478 |
| Memantine Hcl | 243 |
| Topiramate | 236 |
| Pregabalin | 193 |
| Primidone | 168 |
| Phenytoin Sodium Extended | 138 |
| Lacosamide | 122 |
| Divalproex Sodium | 118 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Mohammad Assaf, MD fits within the Specialist landscape nationally.
69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Mohammad Assaf, MD's 4,796 claims are above the specialty average of 1,474.
Nearby Specialist Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Assaf.
Dr. Salim Abdun
PT
Cordova, TN
Dr. Colleen Able
PT
Memphis, TN
Dr. Ali Abualhayjaa
MD
Jackson, TN
Dr. John Adams
M.D.
Knoxville, TN
Dr. Thomas Adkins
M.D.
Nashville, TN
Compare Specialist 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 Specialist 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.
Healthcare Guides
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How to Find a Doctor
Step-by-step guide to choosing a provider
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Tennessee
Frequently Asked Questions
What is Mohammad Assaf, MD's specialty? ▼
Mohammad Assaf, MD specializes in Specialist and practices in Memphis, Tennessee. Credentials: MD.
How much does Mohammad Assaf, MD prescribe under Medicare Part D? ▼
In 2023, Mohammad Assaf, MD wrote 4,796 Medicare Part D claims totaling $1.6M in drug costs for 740 beneficiaries.
What is Mohammad Assaf, MD's Medicare quality score? ▼
Mohammad Assaf, MD has a CMS MIPS Final Score of 12.5/100 (Quality: 0, Cost: 41.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mohammad Assaf, MD located? ▼
Mohammad Assaf, MD is located at 6005 PARK AVE, Memphis, TN, 38119. Phone: (901) 683-8448.
What is Mohammad Assaf, MD's NPI number? ▼
Mohammad Assaf, MD's National Provider Identifier (NPI) is 1205845468, issued on 08/05/2006.
Does Mohammad Assaf, MD prescribe more brand-name or generic drugs? ▼
Mohammad Assaf, MD's prescribing is 6% brand-name and 93% generic drugs by claim count, with $1.4M in brand drug costs.
Does Mohammad Assaf, MD prescribe opioids? ▼
Yes, Mohammad Assaf, MD had 21 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Specialist providers are there in the US? ▼
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Mohammad Assaf, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mohammad Assaf, MD's most frequently prescribed drugs include Gabapentin, Levetiracetam, Donepezil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mohammad Assaf, MD accept Medicare? ▼
Mohammad Assaf, MD appears in CMS Medicare data with 4,796 Part D claims and 740 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mohammad Assaf, MD's credentials? ▼
Mohammad Assaf, MD's NPI is 1205845468 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.