2026 NPPES data Pediatric Hematology & Oncology Physician NPI 1881807022 M.D
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Xiaxin Li, M.D

Pediatric Hematology & Oncology Physician in Mesa, 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 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.
Prescribing volume
13
Medicare Part D claims · Pediatric Hematology & Oncology Physician avg: 92
MIPS score
83.8/100
▲ 1 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Xiaxin Li, M.D reported a CMS MIPS final score of 83.8/100 - above the 83.1 national average - and filed 13 Medicare Part D claims in 2023.

83.8/100
MIPS score · +1 vs avg
13
Part D claims, 2023
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.

Xiaxin Li, 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

84 42nd percentile higher than 42% 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%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. 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

Where Xiaxin Li, M.D sits

This provider among pediatric hematology & oncology physician peers

Across the 57 pediatric hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Xiaxin Li, M.D writes more Part D claims than 12% of them and scores higher on MIPS quality than 56% - 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

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 86 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 79Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 29Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 46Part D claim volume, percentile in specialty: 96 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 79Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 36Part D claim volume, percentile in specialty: 34 · MIPS quality, percentile: 61Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 61Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 71 · MIPS quality, percentile: 39Part D claim volume, percentile in specialty: 59 · MIPS quality, percentile: 54Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 66 · MIPS quality, percentile: 16Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 89Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 61Part D claim volume, percentile in specialty: 91 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 79 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 34Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 66 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 34 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 71Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 89Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 29Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 89 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 61 · MIPS quality, percentile: 66Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 21Part D claim volume, percentile in specialty: 79 · MIPS quality, percentile: 41Part D claim volume, percentile in specialty: 66 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 11Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 54Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 23Xiaxin Li, M.D-Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 56
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one pediatric hematology & oncology physician peer from a representative sample of 56; the gold marker is Xiaxin Li, M.D. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Xiaxin Li, 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 Xiaxin Li, M.D?

Near national average

NPI registry status

Active

Issued 05/07/2007

NPI 1881807022

Primary specialty

Pediatric Hematology & Oncology Physician

Niche

2,568 US NPIs in this specialty

Medicare Part D claims

13 86% vs specialty avg

2023 prescription claims

Specialty avg: 92

MIPS final score

83.8/100 0.7 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Arizona

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

Arizona providers
Pharmacist - 5.6%Pharmacist5.6%Behavior Technician - 5.6%Behavior Technician5.6%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4.2%Physical Therapist4.2%Speech-Language Pathologist - 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program - 3.5%Student in an Organized Health Care Education/Training Program3.5%Pediatric Hematology & Oncology Physician - 0%Pediatric Hematology & Oncology Physician0%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance, MIPS

Xiaxin Li, M.D's 2023 MIPS final score plotted against the Pediatric Hematology & Oncology Physician national average

Near national average
MIPS Final Score
83.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Pediatric Hematology & Oncology Physician) - 83.8/100 vs national avg 83.1

0%100%National avg83%83.8%
MIPS final score (Pediatric Hematology & Oncology Physician) - 83.8/100 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).

Xiaxin Li, M.D appears in the CMS NPPES registry as a Pediatric Hematology & Oncology Physician provider holding M.D credentials at 1432 S DOBSON RD, Mesa, AZ, 85202, with a listed phone of (480) 412-4100. NPI 1881807022 was issued on 05/07/2007.

Medicare Part D records for calendar year 2023 show 13 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $96 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.8/100 for the 2023 performance year (Quality 84.6, Cost 58.6), 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

1432 S DOBSON RD
Mesa, AZ 85202

Provider Details

NPI 1881807022
Specialty Pediatric Hematology & Oncology Physician
Credentials M.D
Gender Male
NPI Issued 05/07/2007

CMS Quality Score (MIPS)

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

83.8451
Final Score
Avg: 83.1
84.5974
Quality
58.6394
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Xiaxin Li, 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.

Presbyterian Healthcare Services
Albuquerque, NM

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

13
Total Claims
$96
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15
Total Day Supply
450
Brand Drug Cost
$0
Generic Drug Cost
$96

Patient Demographics

Average Patient Age
29.5 years
Avg HCC Risk Score
2.13

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydroxyzine Hcl
12

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

Pediatric Hematology & Oncology Physician Overview

How Xiaxin Li, M.D 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

Xiaxin Li, M.D's 13 claims are below the specialty average of 92.

Nearby Pediatric Hematology & Oncology Physician Providers in Arizona

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

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 Arizona 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 Xiaxin Li, M.D's specialty?
Xiaxin Li, M.D specializes in Pediatric Hematology & Oncology Physician and practices in Mesa, Arizona. Credentials: M.D.
How much does Xiaxin Li, M.D prescribe under Medicare Part D?
In 2023, Xiaxin Li, M.D wrote 13 Medicare Part D claims totaling $96 in drug costs for N/A beneficiaries.
What is Xiaxin Li, M.D's Medicare quality score?
Xiaxin Li, M.D has a CMS MIPS Final Score of 83.8/100 (Quality: 84.6, Cost: 58.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Xiaxin Li, M.D located?
Xiaxin Li, M.D is located at 1432 S DOBSON RD, Mesa, AZ, 85202. Phone: (480) 412-4100.
What is Xiaxin Li, M.D's NPI number?
Xiaxin Li, M.D's National Provider Identifier (NPI) is 1881807022, issued on 05/07/2007.
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.
What drugs does Xiaxin Li, M.D prescribe most often?
Based on 2023 Medicare Part D data, Xiaxin Li, M.D's most frequently prescribed drugs include Hydroxyzine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Xiaxin Li, M.D accept Medicare?
Xiaxin Li, M.D appears in CMS Medicare data with 13 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Xiaxin Li, M.D's credentials?
Xiaxin Li, M.D's NPI is 1881807022 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.