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2026 NPPES data Adolescent Medicine (Internal Medicine) Physician NPI 1184604373 MD
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David Kumaki, MD

Adolescent Medicine (Internal Medicine) Physician in Norway, 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 375 in Adolescent Medicine (Internal Medicine) 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
2K
Medicare Part D claims · 326 beneficiaries · Adolescent Medicine (Internal Medicine) Physician avg: 3K
MIPS score
79.4/100
▼ 4 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

David Kumaki, MD reported a CMS MIPS final score of 79.4/100 - below the 83.5 national average - and filed 1,944 Medicare Part D claims in 2023.

79.4/100
MIPS score · -4 vs avg
2K
Part D claims, 2023
Likely
board-certified (heuristic)
≥26th
pct among measured MIPS (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.

CMS NPPES provider registry desk

NPI 1184604373 · Adolescent Medicine (Internal Medicine) Physician

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

  • NPI-10 1184604373
  • ENUM-LEGACY 2006
  • TAX-TRACE 375
  • MIPS-BELOW 79.4/100
  • RX-MID 1,944
  • BOOK-THIN 5 in Maine
  • PHOTO-FINISH Dharmesh Babaria · ±0.5

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

David Kumaki, MD'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 ≥ 26th percentile 26% 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 David Kumaki, MD sits

This provider among adolescent medicine (internal medicine) physician peers

Across the 61 adolescent medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Kumaki, MD writes more Part D claims than 48% of them and scores higher on MIPS quality than 38% - 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 quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0David Kumaki, MD, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 38
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one adolescent medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is David Kumaki, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

David Kumaki, 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 David Kumaki, MD?

Near national average

NPI registry status

Active

Issued 01/23/2006

NPI 1184604373

Primary specialty

Adolescent Medicine (Internal Medicine) Physician

Rare

375 US NPIs in this specialty

Medicare Part D claims

1,944 40% vs specialty avg

2023 prescription claims

Specialty avg: 3,242

MIPS final score

79.4/100 4.1 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Maine

How Adolescent Medicine (Internal Medicine) Physician compares to other specialties among Maine providers

Maine providers
Clinical Social Worker10.2%Physical Therapist5%Pharmacist4.1%Occupational Therapist3.8%Family Medicine Physician3.5%Speech-Language Pathologist3.5%Adolescent Medicine (Interna…0%
Largest specialties in Maine (% of in-state providers)

Medicare quality performance, MIPS

David Kumaki, MD's 2023 MIPS final score plotted against the Adolescent Medicine (Internal Medicine) Physician national average

Near national average
MIPS Final Score
79.4/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%79.4%
MIPS final score (Adolescent Medicine (Internal Medicine) Physician) - 79.4/100 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

193 MAIN ST
Norway, ME 04268
(207) 743-7721

Provider Details

NPI 1184604373
Specialty Adolescent Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 01/23/2006

CMS Quality Score (MIPS)

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

79.3772
Final Score
Measured-score avg: 83.5
57.662
Quality
99
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

1,944
Total Claims
$200K
Total Drug Cost
326
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,382
Total Day Supply
160,119
Generic Drug Cost
$46K

Patient Demographics

Average Patient Age
76.9 years
Avg HCC Risk Score
1.22
Gender Split
53% female / 47% male
Age Distribution
<65: 18, 65-74: 110, 75-84: 132, 85+: 66

Top Prescribed Drugs (Medicare Part D)

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

What David Kumaki, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
 143
Lisinopril
 132
Amlodipine Besylate
 116
Metoprolol Succinate
 108
Omeprazole
 83
Levothyroxine Sodium
 80
Hydrochlorothiazide
 74
Losartan Potassium
 63
Metformin Hcl
 56
Metoprolol Tartrate
 49

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

More Adolescent Medicine (Internal Medicine) Physician in ME → All providers in Maine → Compare specialties →

Adolescent Medicine (Internal Medicine) Physician Overview

How David Kumaki, MD fits within the Adolescent Medicine (Internal Medicine) Physician landscape nationally.

375
Adolescent Medicine (Internal Medicine) Physician Providers in US
46
States with Adolescent Medicine (Internal Medicine) Physician
3,242
Avg Claims per Provider

David Kumaki, MD's 1,944 claims are below the specialty average of 3,242.

Nationwide Adolescent Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (79.4 here).

Dharmesh Babaria 78.9 WI Reynaldo Cornel 80.1 PA Joseph Lipinski 78.5 PA Nahid Elyas 80.5 MI

Same NPPES enumeration year (2006)

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

Robert Rosen Southwest Ranches, FL Dennis Tansiongco Plainview, NY Santhosh Reddy Port Allen, LA Fiona Masters Dothan, AL

Nearby Adolescent Medicine (Internal Medicine) Physician Providers in Maine

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

One of 5 Adolescent Medicine (Internal Medicine) Physician providers enrolled in Maine, 4 are shown here.

Dr. Timothy Carnes
MD
Portland, ME
Dr. Carl Demars
MD
Bath, ME
Dr. Francis Kieliszek
MD
Norway, ME
Dr. William Medd
MD
Norway, ME

Compare Adolescent Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is David Kumaki, MD's specialty? ▼
David Kumaki, MD specializes in Adolescent Medicine (Internal Medicine) Physician and practices in Norway, Maine. Credentials: MD.
How much does David Kumaki, MD prescribe under Medicare Part D? ▼
In 2023, David Kumaki, MD wrote 1,944 Medicare Part D claims totaling $200K in drug costs for 326 beneficiaries.
What is David Kumaki, MD's Medicare quality score? ▼
David Kumaki, MD has a CMS MIPS Final Score of 79.4/100 (Quality: 57.7). 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 David Kumaki, MD located? ▼
David Kumaki, MD is located at 193 MAIN ST, Norway, ME, 04268. Phone: (207) 743-7721.
What is David Kumaki, MD's NPI number? ▼
David Kumaki, MD's National Provider Identifier (NPI) is 1184604373, issued on 01/23/2006.
How many Adolescent Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 375 Adolescent Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Adolescent Medicine (Internal Medicine) Physician provider writes 3,242 Medicare Part D claims per year.
What drugs does David Kumaki, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Kumaki, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Kumaki, MD accept Medicare? ▼
David Kumaki, MD appears in CMS Medicare data with 1,944 Part D claims and 326 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Kumaki, MD's credentials? ▼
David Kumaki, MD's NPI is 1184604373 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 (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.