NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1457049355 MD
Verify on CMS → Emma Sherfinski, MD
Neurology Physician in Scottsdale, 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 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
122
Medicare Part D claims · 40 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Emma Sherfinski, MD filed 122 Medicare Part D claims in 2024 as a Neurology Physician in Scottsdale, Arizona, prescribing 84% generic.
- 122
- Part D claims, 2024
- 84%
- generic prescribing
- ≥34th
- 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 Emma Sherfinski, 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 1457049355), first enumerated 04/27/2023.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 122 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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.
Compare Sherfinski with other Neurology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Arizona
- Dr. Hamza Abbad, MD Kingman, 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
- Dr. Garima Agrawal, MD Phoenix, AZ
Other specialties in Scottsdale: Physical Therapist (524) · Internal Medicine Physician (476) · Pharmacist (448) · Family Nurse Practitioner (423)
CMS NPPES provider registry desk
NPI 1457049355 · Neurology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1457049355
- ENUM-RECENT 2023
- TAX-MID 20K Neurology Physician
- RX-LIGHT 122
- BOOK-THIN 436 in Arizona
- PHOTO-ENUM Robert Alavi, MD · 2023
Emma Sherfinski, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
122 ≥ 34th percentile 34% 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-eligible specialty (heuristic, not verified)
Emma Sherfinski, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Emma Sherfinski, MD?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
122 91% vs specialty avg
Specialty distribution in Arizona
How Neurology Physician compares to other specialties among Arizona 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 | 1457049355 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/27/2023 |
Brand vs generic prescribing mix · Typical
Emma Sherfinski, MD - brand share 16.0%
Neurology Physician average
16% brand-name claims vs 84% generic, on 122 2024 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 2024.
122
Total Claims
$5K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 148.667
- Total Day Supply
- 3,656
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $924
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 2.66
- Gender Split
- 48% female / 53% male
Neurology Physician Overview
How Emma Sherfinski, 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
Emma Sherfinski, MD's 122 claims are below the specialty average of 1,356.
Nationwide Neurology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sherfinski, both outside Arizona so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2023)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neurology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Sherfinski.
One of 436 Neurology Physician providers enrolled in Arizona, 11 are shown on this page.
Dr. Nimfa Aguila
M.D.
Yuma, AZ
Dr. Maria Aguilar
MD
Phoenix, AZ
Dr. Yazan Al-Hasan
MD
Phoenix, AZ
Dr. Isam Alannouf
MD
Tucson, AZ
Hania Alexander
PA-C
Scottsdale, AZ
Compare Neurology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Emma Sherfinski, MD's specialty? ▼
Emma Sherfinski, MD specializes in Neurology Physician and practices in Scottsdale, Arizona. Credentials: MD.
How much does Emma Sherfinski, MD prescribe under Medicare Part D? ▼
In 2024, Emma Sherfinski, MD wrote 122 Medicare Part D claims totaling $5K in drug costs for 40 beneficiaries.
Where is Emma Sherfinski, MD located? ▼
Emma Sherfinski, MD is located at 13400 E SHEA BLVD, Scottsdale, AZ, 85259. Phone: (480) 301-8000.
What is Emma Sherfinski, MD's NPI number? ▼
Emma Sherfinski, MD's National Provider Identifier (NPI) is 1457049355, issued on 04/27/2023.
Does Emma Sherfinski, MD prescribe more brand-name or generic drugs? ▼
Emma Sherfinski, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $4K in brand drug costs.
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.
Does Emma Sherfinski, MD accept Medicare? ▼
Emma Sherfinski, MD appears in CMS Medicare data with 122 Part D claims and 40 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Emma Sherfinski, MD's credentials? ▼
Emma Sherfinski, MD's NPI is 1457049355 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.