2026 NPPES data Anesthesiology Physician NPI 1841235009 MD
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Leon Shaw, MD

Anesthesiology Physician in Washington, District of Columbia. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 56,398 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
69
Medicare Part D claims · Anesthesiology Physician avg: 860
MIPS score
74.1/100
▼ 9 pts below national avg 83.1 · Mid-tier
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Leon Shaw, MD reported a CMS MIPS final score of 74.1/100 - below the 83.1 national average - and filed 69 Medicare Part D claims in 2023.

74.1/100
MIPS score · -9 vs avg
69
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.

Leon Shaw, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

74 12th percentile higher than 12% 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%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 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 Leon Shaw, MD 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, Leon Shaw, MD writes more Part D claims than 28% of them and scores higher on MIPS quality than 19% - placing this provider in the lower-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

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 50Leon Shaw, MD-Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 19
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 Leon Shaw, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Leon Shaw, MD 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 Leon Shaw, MD?

Below national average

NPI registry status

Active

Issued 06/19/2006

NPI 1841235009

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

69 92% vs specialty avg

2023 prescription claims

Specialty avg: 860

MIPS final score

74.1/100 9 pts vs avg

Mid-tier band

vs 83.1 national avg

Specialty distribution in District of Columbia

How Anesthesiology Physician compares to other specialties among District of Columbia providers

District of Columbia providers

Largest specialties in District of Columbia (% of in-state providers)

Home Health Aide - 20.8%Home Health Aide20.8%Personal Care Attendant - 11.5%Personal Care Attendant11.5%Case Manager/Care Coordinator - 7%Case Manager/Care Coordinator7%Student in an Organized Health Care Education/Training Program - 6.4%Student in an Organized Health Care Education/Training Program6.4%Clinical Social Worker - 4%Clinical Social Worker4%Internal Medicine Physician - 2.1%Internal Medicine Physician2.1%Anesthesiology Physician - 0.6%Anesthesiology Physician0.6%
Largest specialties in District of Columbia (% of in-state providers)

Medicare quality performance, MIPS

Leon Shaw, MD's 2023 MIPS final score plotted against the Anesthesiology Physician national average

Below national average
MIPS Final Score
74.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Anesthesiology Physician) - 74.1/100 vs national avg 83.1

0%100%National avg83%74.1%
MIPS final score (Anesthesiology Physician) - 74.1/100 vs national avg 83.1

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).

Leon Shaw, MD appears in the CMS NPPES registry as a Anesthesiology Physician provider holding MD credentials at 1150 VARNUM ST NE, Washington, DC, 20017, with a listed phone of (202) 448-4041. NPI 1841235009 was issued on 06/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Shaw most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 69 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $1K in drug spend. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.1/100 for the 2023 performance year (Quality 85.6, Cost 40), compared with the national average of 83.1.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 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

1150 VARNUM ST NE
Washington, DC 20017

Provider Details

NPI 1841235009
Specialty Anesthesiology Physician
Credentials MD
Gender Male
NPI Issued 06/19/2006

CMS Quality Score (MIPS)

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

74.1079
Final Score
Avg: 83.1
85.6316
Quality
40.035
Cost

Reporting: Group practice

Medicare Part D Prescribing Data

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

69
Total Claims
$1K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
103
Total Day Supply
3,040
Brand Drug Cost
$0
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
0.69

Anesthesiology Physician Overview

How Leon Shaw, MD fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

Leon Shaw, MD's 69 claims are below the specialty average of 860.

Nearby Anesthesiology Physician Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Shaw.

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 District of Columbia 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.

Frequently Asked Questions

What is Leon Shaw, MD's specialty?
Leon Shaw, MD specializes in Anesthesiology Physician and practices in Washington, District of Columbia. Credentials: MD.
How much does Leon Shaw, MD prescribe under Medicare Part D?
In 2023, Leon Shaw, MD wrote 69 Medicare Part D claims totaling $1K in drug costs for N/A beneficiaries.
What is Leon Shaw, MD's Medicare quality score?
Leon Shaw, MD has a CMS MIPS Final Score of 74.1/100 (Quality: 85.6, Cost: 40). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Leon Shaw, MD located?
Leon Shaw, MD is located at 1150 VARNUM ST NE, Washington, DC, 20017. Phone: (202) 448-4041.
What is Leon Shaw, MD's NPI number?
Leon Shaw, MD's National Provider Identifier (NPI) is 1841235009, issued on 06/19/2006.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
Does Leon Shaw, MD accept Medicare?
Leon Shaw, MD appears in CMS Medicare data with 69 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 Leon Shaw, MD's credentials?
Leon Shaw, MD's NPI is 1841235009 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

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.