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2026 NPPES data Infectious Disease Physician NPI 1073530945 M.D.
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Neil Ampel, M.D.

Infectious Disease 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 8,314 in Infectious Disease 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
94
Medicare Part D claims · 25 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.6/100
▼ 5 pts below national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Neil Ampel, M.D. reported a CMS MIPS final score of 78.6/100 - below the 83.5 national average - and filed 94 Medicare Part D claims in 2023.

78.6/100
MIPS score · -5 vs avg
94
Part D claims, 2023
56%
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.

Federal trust snapshot

What official records show about Neil Ampel, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1073530945), first enumerated 07/16/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 94 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 78.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • 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.

CMS NPPES provider registry desk

NPI 1073530945 · Infectious Disease Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1073530945
  • ENUM-LEGACY 2006
  • TAX-MID 8K Infectious Disease
  • MIPS-BELOW 78.6/100
  • RX-TRACE 94
  • BOOK-THIN 138 in Arizona
  • PHOTO-FINISH Christopher Saling · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Neil Ampel, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

79 ≥ 23rd percentile 23% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Neil Ampel, M.D. sits

This provider among infectious disease physician peers

Across the 2,130 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Neil Ampel, M.D. writes more Part D claims than 17% of them and scores higher on MIPS quality than 27% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 22Neil Ampel, M.D., Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 27
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Neil Ampel, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Neil Ampel, 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 Neil Ampel, M.D.?

Near national average

NPI registry status

Active

Issued 07/16/2006

NPI 1073530945

Primary specialty

Infectious Disease Physician

Mid-sized

8,314 US NPIs in this specialty

Medicare Part D claims

94 88% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

78.6/100 4.9 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Arizona

How Infectious Disease Physician compares to other specialties among Arizona providers

Arizona providers
Pharmacist5.6%Behavior Technician5.6%Family Nurse Practitioner4.3%Physical Therapist4.2%Speech-Language Pathologist3.5%Student in an Organized Heal…3.5%Infectious Disease Physician0.1%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance, MIPS

Neil Ampel, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average

Near national average
MIPS Final Score
78.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%78.6%
MIPS final score (Infectious Disease Physician) - 78.6/100 vs national avg 83.5
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

13400 E SHEA BLVD
Scottsdale, AZ 85259
(480) 301-8000

Provider Details

NPI 1073530945
Specialty Infectious Disease Physician
Credentials M.D.
Gender Male
NPI Issued 07/16/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.5864
Final Score
Measured-score avg: 83.5
69.056
Quality
59.5653
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Neil Ampel, 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.

Mayo Clinic Arizona
Scottsdale, AZ

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 · Above average

Neil Ampel, M.D. - brand share 44.0%
Infectious Disease Physician average

44% brand-name claims vs 56% generic, on 94 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.

94
Total Claims
$181K
Total Drug Cost
25
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
152
Total Day Supply
4,520
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$147K
Generic Drug Cost
$34K

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
2.06

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Fluconazole
 30
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Infectious Disease Physician in AZ → All providers in Arizona → Compare specialties →

Infectious Disease Physician Overview

How Neil Ampel, M.D. fits within the Infectious Disease Physician landscape nationally.

8,314
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Neil Ampel, M.D.'s 94 claims are below the specialty average of 816.

Nationwide Infectious Disease Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Ampel, both outside Arizona so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (78.6 here).

Christopher Saling 78.6 GA Nicolas De La Pena 78.5 PA Emmanuel Frempong-Manso 78.5 PA Kevin Perez 78.5 PA

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Keith Woeltje Milwaukee, WI Mark Holodniy Palo Alto, CA Julie Joseph New York, NY Scott Fridkin Atlanta, GA

Nearby Infectious Disease Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Ampel.

One of 138 Infectious Disease Physician providers enrolled in Arizona, 5 are shown here.

Dr. Ali Abdulsahib
MD
Scottsdale, AZ
Dr. Maheen Abidi
M.D.
Scottsdale, AZ
Dr. Rodney Adam
MD
Tucson, AZ
Dr. Matthew Adams
D.O.
Tucson, AZ
Dr. Abaseen Afghan
M.D.
Tucson, AZ

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Neil Ampel, M.D.'s specialty? ▼
Neil Ampel, M.D. specializes in Infectious Disease Physician and practices in Scottsdale, Arizona. Credentials: M.D..
How much does Neil Ampel, M.D. prescribe under Medicare Part D? ▼
In 2023, Neil Ampel, M.D. wrote 94 Medicare Part D claims totaling $181K in drug costs for 25 beneficiaries.
What is Neil Ampel, M.D.'s Medicare quality score? ▼
Neil Ampel, M.D. has a CMS MIPS Final Score of 78.6/100 (Quality: 69.1, Cost: 59.6). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Neil Ampel, M.D. located? ▼
Neil Ampel, M.D. is located at 13400 E SHEA BLVD, Scottsdale, AZ, 85259. Phone: (480) 301-8000.
What is Neil Ampel, M.D.'s NPI number? ▼
Neil Ampel, M.D.'s National Provider Identifier (NPI) is 1073530945, issued on 07/16/2006.
Does Neil Ampel, M.D. prescribe more brand-name or generic drugs? ▼
Neil Ampel, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $147K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,314 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Neil Ampel, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Neil Ampel, M.D.'s most frequently prescribed drugs include Fluconazole, Biktarvy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Neil Ampel, M.D. accept Medicare? ▼
Neil Ampel, M.D. appears in CMS Medicare data with 94 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Neil Ampel, M.D.'s credentials? ▼
Neil Ampel, M.D.'s NPI is 1073530945 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 editorial process.

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.