2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1104909936 M.D.
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Colleen Finnegan, M.D.

Allergy & Immunology (Internal Medicine) Physician in Lake Oswego, Oregon.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 517 in Allergy & Immunology (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
863
Medicare Part D claims · 246 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
MIPS score
79.1/100
▼ 4 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Colleen Finnegan, M.D. reported a CMS MIPS final score of 79.1/100 - below the 83.1 national average - and filed 863 Medicare Part D claims in 2023.

79.1/100
MIPS score · -4 vs avg
863
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.

Colleen Finnegan, 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

79 30th percentile higher than 30% 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 Colleen Finnegan, M.D. sits

This provider among allergy & immunology (internal medicine) physician peers

Across the 130 allergy & immunology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Colleen Finnegan, M.D. writes more Part D claims than 72% of them and scores higher on MIPS quality than 38% - placing this provider in the high-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 quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 92Colleen Finnegan, M.D.-Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 38
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one allergy & immunology (internal medicine) physician peer from a representative sample of 60; the gold marker is Colleen Finnegan, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Colleen Finnegan, M.D. 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 Colleen Finnegan, M.D.?

Near national average

NPI registry status

Active

Issued 10/23/2006

NPI 1104909936

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

517 US NPIs in this specialty

Medicare Part D claims

863 8% vs specialty avg

2023 prescription claims

Specialty avg: 798

MIPS final score

79.1/100 4 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Oregon providers

Oregon providers
Mental Health Counselor - 12.1%Mental Health Counselor12.1%Massage Therapist - 4.8%Massage Therapist4.8%Counselor - 3.9%Counselor3.9%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Case Manager/Care Coordinator - 3.4%Case Manager/Care Coordinator3.4%Clinical Social Worker - 3.3%Clinical Social Worker3.3%Allergy & Immunology (Internal Medicine) Physician - 0%Allergy & Immunology (Internal Medicine) Physician0%
Largest specialties in Oregon (% of in-state providers)

Medicare quality performance, MIPS

Colleen Finnegan, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology (Internal Medicine) Physician national average

Near national average
MIPS Final Score
79.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology (Internal Medicine) Physician) - 79.1/100 vs national avg 83.1

0%100%National avg83%79.1%
MIPS final score (Allergy & Immunology (Internal Medicine) Physician) - 79.1/100 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).

Colleen Finnegan, M.D. appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding M.D. credentials at 4004 KRUSE WAY PL STE 300, Lake Oswego, OR, 97035, with a listed phone of (503) 216-1500. NPI 1104909936 was issued on 10/23/2006.

Medicare Part D records for calendar year 2023 show 863 prescription claims written by this provider, covering 246 Medicare beneficiaries and totaling roughly $98K in drug spend, with an opioid prescribing rate of 2.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.1/100 for the 2023 performance year (Quality 83.9, Cost 42.9), compared with the national average of 83.1.

Allergy & Immunology (Internal Medicine) Physician is a narrow specialty nationwide, with 517 enrolled providers across 47 states and an average of 798 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

4004 KRUSE WAY PL STE 300
Lake Oswego, OR 97035

Provider Details

NPI 1104909936
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 10/23/2006

CMS Quality Score (MIPS)

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

79.0673
Final Score
Avg: 83.1
83.904
Quality
42.8595
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

863
Total Claims
$98K
Total Drug Cost
246
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,539
Total Day Supply
44,431
Generic Drug Cost
$14K
Opioid Claims
18 (2.1% rate)
Antibiotic Claims
15

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.27
Gender Split
66% female / 34% male
Age Distribution
<65: 25, 65-74: 132, 75-84: 65, 85+: 24

Top Prescribed Drugs (Medicare Part D)

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

What Colleen Finnegan, M.D. 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
Gabapentin
62
Losartan Potassium
43
Atorvastatin Calcium
37
Levothyroxine Sodium
37
Omeprazole
33
Lisinopril
27
Amlodipine Besylate
21
Buspirone Hcl
20
Quetiapine Fumarate
20
Allopurinol
18

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

Allergy & Immunology (Internal Medicine) Physician Overview

How Colleen Finnegan, M.D. fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.

517
Allergy & Immunology (Internal Medicine) Physician Providers in US
47
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider

Colleen Finnegan, M.D.'s 863 claims are above the specialty average of 798.

Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Oregon

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

Compare Allergy & Immunology (Internal Medicine) 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 Oregon medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Allergy & Immunology (Internal Medicine) 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 Colleen Finnegan, M.D.'s specialty?
Colleen Finnegan, M.D. specializes in Allergy & Immunology (Internal Medicine) Physician and practices in Lake Oswego, Oregon. Credentials: M.D..
How much does Colleen Finnegan, M.D. prescribe under Medicare Part D?
In 2023, Colleen Finnegan, M.D. wrote 863 Medicare Part D claims totaling $98K in drug costs for 246 beneficiaries.
What is Colleen Finnegan, M.D.'s Medicare quality score?
Colleen Finnegan, M.D. has a CMS MIPS Final Score of 79.1/100 (Quality: 83.9, Cost: 42.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Colleen Finnegan, M.D. located?
Colleen Finnegan, M.D. is located at 4004 KRUSE WAY PL STE 300, Lake Oswego, OR, 97035. Phone: (503) 216-1500.
What is Colleen Finnegan, M.D.'s NPI number?
Colleen Finnegan, M.D.'s National Provider Identifier (NPI) is 1104909936, issued on 10/23/2006.
Does Colleen Finnegan, M.D. prescribe opioids?
Yes, Colleen Finnegan, M.D. had 18 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US?
There are 517 Allergy & Immunology (Internal Medicine) Physician providers across 47 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does Colleen Finnegan, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Colleen Finnegan, M.D.'s most frequently prescribed drugs include Gabapentin, Losartan Potassium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Colleen Finnegan, M.D. accept Medicare?
Colleen Finnegan, M.D. appears in CMS Medicare data with 863 Part D claims and 246 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Colleen Finnegan, M.D.'s credentials?
Colleen Finnegan, M.D.'s NPI is 1104909936 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.

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.