NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1467447656 MD
Verify on CMS → David Weidman, MD
Neurology Physician in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,885 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
777
Medicare Part D claims · 217 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.3/100
▲ 15 pts above national avg 83.1 · Exceptional
Industry payments
$9.1K
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
David Weidman, MD reported a CMS MIPS final score of 98.3/100 - above the 83.1 national average - and filed 777 Medicare Part D claims in 2023.
- 98.3/100
- MIPS score · +15 vs avg
- 777
- Part D claims, 2023
- 94%
- 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.
David Weidman, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 11% higher than 89% 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 David Weidman, MD sits
This provider among neurology physician peers
Across the 5,437 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Weidman, MD writes more Part D claims than 43% of them and scores higher on MIPS quality than 90% - 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 neurology physician peer from a representative sample of 60; the gold marker is David Weidman, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Weidman, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 David Weidman, MD?
High performer (top quartile)Primary specialty
Neurology Physician
Medicare Part D claims
777 41% vs specialty avg
MIPS final score
98.3/100 15.2 pts vs avg
Specialty distribution in Arizona
How Neurology Physician compares to other specialties among Arizona providers
Medicare quality performance, MIPS
David Weidman, MD's 2023 MIPS final score plotted against the Neurology Physician national average
- MIPS Final Score
- 98.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Neurology Physician) - 98.3/100 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).
David Weidman, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 901 E WILLETTA ST, Phoenix, AZ, 85006, with a listed phone of (602) 839-6900. NPI 1467447656 was issued on 09/14/2005.
Medicare Part D records for calendar year 2023 show 777 prescription claims written by this provider, covering 217 Medicare beneficiaries and totaling roughly $76K in drug spend, split 6% brand-name and 94% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.3/100 for the 2023 performance year, compared with the national average of 83.1.
Neurology Physician is a mid-sized specialty nationwide, with 19,885 enrolled providers across 54 states and an average of 1,309 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 | 1467447656 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/14/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.3273
Final Score
Avg: 83.1
98.091
Cost
98
Promoting Interoperability
Reporting: Group practice
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 David Weidman, MD. Source: openpaymentsdata.cms.gov.
Total received
$9.1K
Largest payer
Eisai 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
David Weidman, MD - brand share 6.0%
Neurology Physician average
6% brand-name claims vs 94% generic, on 777 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.
777
Total Claims
$76K
Total Drug Cost
217
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,952
- Total Day Supply
- 58,342
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $32K
- Generic Drug Cost
- $45K
Patient Demographics
- Average Patient Age
- 75.9 years
- Avg HCC Risk Score
- 1.41
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 15, 65-74: 71, 75-84: 104, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Weidman, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Donepezil Hcl
Donepezil Hcl
249 claims
- Rivastigmine 95
Rivastigmine
95 claims
- Escitalopram Oxalate 91
Escitalopram Oxalate
91 claims
- Memantine Hcl 75
Memantine Hcl
75 claims
- Citalopram Hbr 43
Citalopram Hbr
43 claims
- Trazodone Hcl 25
Trazodone Hcl
25 claims
- Venlafaxine Hcl Er 22
Venlafaxine Hcl Er
22 claims
- Methylphenidate Hcl 21
Methylphenidate Hcl
21 claims
| Drug | Claims |
|---|---|
| Donepezil Hcl | 249 |
| Rivastigmine | 95 |
| Escitalopram Oxalate | 91 |
| Memantine Hcl | 75 |
| Citalopram Hbr Citalopram Hydrobromide | 43 |
| Trazodone Hcl | 25 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 22 |
| Methylphenidate Hcl | 21 |
| Mirtazapine | 19 |
| Quetiapine Fumarate | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How David Weidman, MD fits within the Neurology Physician landscape nationally.
19,885
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
David Weidman, MD's 777 claims are below the specialty average of 1,309.
Nearby Neurology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Weidman.
Dr. Hamza Abbad
MD
Tucson, AZ
Dr. Rinu Abraham
MD
Phoenix, AZ
Dr. Islam Abujubara
MD
Phoenix, AZ
Dr. Amelia Adcock
M.D.
Scottsdale, AZ
Dr. Charles Adler
M.D.
Scottsdale, AZ
Compare Neurology 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology 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 David Weidman, MD's specialty? ▼
David Weidman, MD specializes in Neurology Physician and practices in Phoenix, Arizona. Credentials: MD.
How much does David Weidman, MD prescribe under Medicare Part D? ▼
In 2023, David Weidman, MD wrote 777 Medicare Part D claims totaling $76K in drug costs for 217 beneficiaries.
What is David Weidman, MD's Medicare quality score? ▼
David Weidman, MD has a CMS MIPS Final Score of 98.3/100, Cost: 98.1. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Weidman, MD located? ▼
David Weidman, MD is located at 901 E WILLETTA ST, Phoenix, AZ, 85006. Phone: (602) 839-6900.
What is David Weidman, MD's NPI number? ▼
David Weidman, MD's National Provider Identifier (NPI) is 1467447656, issued on 09/14/2005.
Does David Weidman, MD prescribe more brand-name or generic drugs? ▼
David Weidman, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $32K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 19,885 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does David Weidman, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Weidman, MD's most frequently prescribed drugs include Donepezil Hcl, Rivastigmine, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Weidman, MD accept Medicare? ▼
David Weidman, MD appears in CMS Medicare data with 777 Part D claims and 217 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Weidman, MD's credentials? ▼
David Weidman, MD's NPI is 1467447656 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.