NPI registry status
Active
2026 NPPES data Anesthesiology Physician NPI 1033327309 M.D.
Verify on CMS → Daniel Nasr, M.D.
Anesthesiology Physician in Wilmington, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 56,432 in 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
3K
Medicare Part D claims · 520 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.7/100
▼ 6 pts below national avg 83.1 · Above neutral
Industry payments
$1.4K
65 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
Daniel Nasr, M.D. reported a CMS MIPS final score of 76.7/100 - below the 83.1 national average - and filed 3,254 Medicare Part D claims in 2023.
- 76.7/100
- MIPS score · -6 vs avg
- 3K
- 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.
Daniel Nasr, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 21st percentile higher than 21% 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 Daniel Nasr, M.D. sits
This provider among anesthesiology physician peers
Across the 1,666 anesthesiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Daniel Nasr, M.D. writes more Part D claims than 84% of them and scores higher on MIPS quality than 36% - 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 anesthesiology physician peer from a representative sample of 60; the gold marker is Daniel Nasr, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Daniel Nasr, M.D. 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 Daniel Nasr, M.D.?
Below national averagePrimary specialty
Anesthesiology Physician
Medicare Part D claims
3,254 278% vs specialty avg
MIPS final score
76.7/100 6.4 pts vs avg
Specialty distribution in Delaware
How Anesthesiology Physician compares to other specialties among Delaware providers
Medicare quality performance, MIPS
Daniel Nasr, M.D.'s 2023 MIPS final score plotted against the Anesthesiology Physician national average
- MIPS Final Score
- 76.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Anesthesiology Physician) - 76.7/100 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).
Daniel Nasr, M.D. appears in the CMS NPPES registry as an Anesthesiology Physician provider holding M.D. credentials at 3105 LIMESTONE RD STE 300, Wilmington, DE, 19808, with a listed phone of (844) 365-7246. NPI 1033327309 was issued on 05/19/2007.
Medicare Part D records for calendar year 2023 show 3,254 prescription claims written by this provider, covering 520 Medicare beneficiaries and totaling roughly $256K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 63.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.7/100 for the 2023 performance year (Quality 90.3, Cost 96), compared with the national average of 83.1.
Anesthesiology Physician is a high-volume specialty nationwide, with 56,432 enrolled providers across 56 states and an average of 860 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 | 1033327309 |
|---|---|
| Specialty | Anesthesiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/19/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
76.7457
Final Score
Avg: 83.1
90.309
Quality
95.957
Cost
0
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Daniel Nasr, M.D. 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.
Center For Interventional Pain Spine LLC
Exton, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Daniel Nasr, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
Vertos Medical, 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
Daniel Nasr, M.D. - brand share 9.0%
Anesthesiology Physician average
9% brand-name claims vs 91% generic, on 3,254 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.
3,254
Total Claims
$256K
Total Drug Cost
520
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,418
- Total Day Supply
- 94,971
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $167K
- Generic Drug Cost
- $89K
- Opioid Claims
- 2,079 (63.9% rate)
Patient Demographics
- Average Patient Age
- 66.0 years
- Avg HCC Risk Score
- 1.73
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 217, 65-74: 188, 75-84: 94, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Daniel Nasr, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
568 claims
- Oxycodone Hcl
Oxycodone Hcl
434 claims
- Gabapentin
Gabapentin
318 claims
- Hydrocodone-Acetam… 212
Hydrocodone-Acetaminophen
212 claims
- Tramadol Hcl 166
Tramadol Hcl
166 claims
- Morphine Sulfate Er 140
Morphine Sulfate Er
140 claims
- Cyclobenzaprine Hcl 133
Cyclobenzaprine Hcl
133 claims
- Tizanidine Hcl 133
Tizanidine Hcl
133 claims
| Drug | Claims |
|---|---|
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 568 |
| Oxycodone Hcl | 434 |
| Gabapentin | 318 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 212 |
| Tramadol Hcl | 166 |
| Morphine Sulfate Er Morphine Sulfate | 140 |
| Cyclobenzaprine Hcl | 133 |
| Tizanidine Hcl | 133 |
| Oxycontin Oxycodone Hcl | 110 |
| Tramadol Hcl Er Tramadol Hcl | 103 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Anesthesiology Physician Overview
How Daniel Nasr, M.D. fits within the Anesthesiology Physician landscape nationally.
56,432
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider
Daniel Nasr, M.D.'s 3,254 claims are above the specialty average of 860.
Nearby Anesthesiology Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Nasr.
Dr. Rany Abdallah
MD, PHD, MBA
Bear, DE
Dr. Mona Abdel-Misih
MD
New Castle, DE
Dr. Suleiman Abu Afash
MD
Wilmington, DE
Dr. Bruce Aldred
M.D.
Lewes, DE
Dr. Stephani Allison
M.D.
Lewes, DE
Compare Anesthesiology 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 Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anesthesiology 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 Daniel Nasr, M.D.'s specialty? ▼
Daniel Nasr, M.D. specializes in Anesthesiology Physician and practices in Wilmington, Delaware. Credentials: M.D..
How much does Daniel Nasr, M.D. prescribe under Medicare Part D? ▼
In 2023, Daniel Nasr, M.D. wrote 3,254 Medicare Part D claims totaling $256K in drug costs for 520 beneficiaries.
What is Daniel Nasr, M.D.'s Medicare quality score? ▼
Daniel Nasr, M.D. has a CMS MIPS Final Score of 76.7/100 (Quality: 90.3, Cost: 96). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Daniel Nasr, M.D. located? ▼
Daniel Nasr, M.D. is located at 3105 LIMESTONE RD STE 300, Wilmington, DE, 19808. Phone: (844) 365-7246.
What is Daniel Nasr, M.D.'s NPI number? ▼
Daniel Nasr, M.D.'s National Provider Identifier (NPI) is 1033327309, issued on 05/19/2007.
Does Daniel Nasr, M.D. prescribe more brand-name or generic drugs? ▼
Daniel Nasr, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $167K in brand drug costs.
Does Daniel Nasr, M.D. prescribe opioids? ▼
Yes, Daniel Nasr, M.D. had 2,079 opioid claims in 2023 with an opioid prescribing rate of 63.9%.
How many Anesthesiology Physician providers are there in the US? ▼
There are 56,432 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Daniel Nasr, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Daniel Nasr, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Oxycodone Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Daniel Nasr, M.D. accept Medicare? ▼
Daniel Nasr, M.D. appears in CMS Medicare data with 3,254 Part D claims and 520 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Daniel Nasr, M.D.'s credentials? ▼
Daniel Nasr, M.D.'s NPI is 1033327309 with credentials M.D.. 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.