2026 NPPES data Pediatric Hematology & Oncology Physician NPI 1013945708 DO
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Aaron Weiss, DO

Pediatric Hematology & Oncology Physician in Scarborough, Maine.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,568 in Pediatric Hematology & Oncology 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.
MIPS score
98.1/100
▲ 15 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Aaron Weiss, DO reported a CMS MIPS final score of 98.1/100 - above the 83.1 national average.

98.1/100
MIPS score · +15 vs avg
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.

Aaron Weiss, DO'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

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic, not verified)

Aaron Weiss, DO 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 Aaron Weiss, DO?

High performer (top quartile)

NPI registry status

Active

Issued 06/29/2006

NPI 1013945708

Primary specialty

Pediatric Hematology & Oncology Physician

Niche

2,568 US NPIs in this specialty

MIPS final score

98.1/100 15 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Maine

How Pediatric Hematology & Oncology Physician compares to other specialties among Maine providers

Maine providers
Clinical Social Worker - 10.2%Clinical Social Worker10.2%Physical Therapist - 5%Physical Therapist5%Pharmacist - 4.1%Pharmacist4.1%Occupational Therapist - 3.8%Occupational Therapist3.8%Family Medicine Physician - 3.5%Family Medicine Physician3.5%Speech-Language Pathologist - 3.5%Speech-Language Pathologist3.5%Pediatric Hematology & Oncology Physician - 0%Pediatric Hematology & Oncology Physician0%
Largest specialties in Maine (% of in-state providers)

Medicare quality performance, MIPS

Aaron Weiss, DO's 2023 MIPS final score plotted against the Pediatric Hematology & Oncology Physician national average

High performer (top quartile)
MIPS Final Score
98.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Pediatric Hematology & Oncology Physician) - 98.1/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Pediatric Hematology & Oncology Physician) - 98.1/100 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).

Aaron Weiss, DO appears in the CMS NPPES registry as a Pediatric Hematology & Oncology Physician provider holding DO credentials at 100 CAMPUS DRIVE, Scarborough, ME, 04074, with a listed phone of (207) 885-7565. NPI 1013945708 was issued on 06/29/2006.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal, many Pediatric Hematology & Oncology Physician providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.1/100 for the 2023 performance year (Quality 86.1), compared with the national average of 83.1.

Pediatric Hematology & Oncology Physician is a narrow specialty nationwide, with 2,568 enrolled providers across 52 states and an average of 92 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

100 CAMPUS DRIVE
Scarborough, ME 04074

Provider Details

NPI 1013945708
Specialty Pediatric Hematology & Oncology Physician
Credentials DO
Gender Male
NPI Issued 06/29/2006

CMS Quality Score (MIPS)

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

98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Pediatric Hematology & Oncology Physician Overview

How Aaron Weiss, DO fits within the Pediatric Hematology & Oncology Physician landscape nationally.

2,568
Pediatric Hematology & Oncology Physician Providers in US
52
States with Pediatric Hematology & Oncology Physician
92
Avg Claims per Provider

Nearby Pediatric Hematology & Oncology Physician Providers in Maine

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

Compare Pediatric Hematology & Oncology 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 Maine medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Pediatric Hematology & Oncology 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.

Frequently Asked Questions

What is Aaron Weiss, DO's specialty?
Aaron Weiss, DO specializes in Pediatric Hematology & Oncology Physician and practices in Scarborough, Maine. Credentials: DO.
What is Aaron Weiss, DO's Medicare quality score?
Aaron Weiss, DO has a CMS MIPS Final Score of 98.1/100 (Quality: 86.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Aaron Weiss, DO located?
Aaron Weiss, DO is located at 100 CAMPUS DRIVE, Scarborough, ME, 04074. Phone: (207) 885-7565.
What is Aaron Weiss, DO's NPI number?
Aaron Weiss, DO's National Provider Identifier (NPI) is 1013945708, issued on 06/29/2006.
How many Pediatric Hematology & Oncology Physician providers are there in the US?
There are 2,568 Pediatric Hematology & Oncology Physician providers across 52 states in the US. The average Pediatric Hematology & Oncology Physician provider writes 92 Medicare Part D claims per year.
Does Aaron Weiss, DO accept Medicare?
Aaron Weiss, DO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Weiss, DO's credentials?
Aaron Weiss, DO's NPI is 1013945708 with credentials DO. 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.
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.