2026 NPPES data Rheumatology Physician NPI 1780625780 MD
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Cong-Qiu Chu, MD

Rheumatology Physician in Portland, 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 6,181 in Rheumatology 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
89
Medicare Part D claims · 34 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.8/100
▲ 15 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Cong-Qiu Chu, MD reported a CMS MIPS final score of 97.8/100 - above the 83.1 national average - and filed 89 Medicare Part D claims in 2023.

97.8/100
MIPS score · +15 vs avg
89
Part D claims, 2023
70%
generic prescribing
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.

Cong-Qiu Chu, MD'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 15% higher than 85% 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

Where Cong-Qiu Chu, MD sits

This provider among rheumatology physician peers

Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Cong-Qiu Chu, MD writes more Part D claims than 2% of them and scores higher on MIPS quality than 89% - 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 quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 72Cong-Qiu Chu, MD-Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 89
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Cong-Qiu Chu, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Cong-Qiu Chu, MD 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 Cong-Qiu Chu, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/09/2006

NPI 1780625780

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

89 96% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

MIPS final score

97.8/100 14.7 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Oregon

How Rheumatology 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%Rheumatology Physician - 0.1%Rheumatology Physician0.1%
Largest specialties in Oregon (% of in-state providers)

Medicare quality performance, MIPS

Cong-Qiu Chu, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average

High performer (top quartile)
MIPS Final Score
97.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Rheumatology Physician) - 97.8/100 vs national avg 83.1

0%100%National avg83%97.8%
MIPS final score (Rheumatology Physician) - 97.8/100 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).

Cong-Qiu Chu, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239, with a listed phone of (503) 494-1793. NPI 1780625780 was issued on 06/09/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chu 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 89 prescription claims written by this provider, covering 34 Medicare beneficiaries and totaling roughly $166K in drug spend, split 30% brand-name and 70% generic by claim count. 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 97.8/100 for the 2023 performance year (Quality 81), compared with the national average of 83.1.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

3181 SW SAM JACKSON PARK RD
Portland, OR 97239

Provider Details

NPI 1780625780
Specialty Rheumatology Physician
Credentials MD
Gender Male
NPI Issued 06/09/2006

CMS Quality Score (MIPS)

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

97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Cong-Qiu Chu, MD 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.

University Professional Services
Portland, OR

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

Brand vs generic prescribing mix · Above average

Cong-Qiu Chu, MD - brand share 30.0%
Rheumatology Physician average

30% brand-name claims vs 70% generic, on 89 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

89
Total Claims
$166K
Total Drug Cost
34
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
151
Total Day Supply
4,367
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$162K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
66.8 years
Avg HCC Risk Score
1.52

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methotrexate
Methotrexate Sodium
19

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

Rheumatology Physician Overview

How Cong-Qiu Chu, MD fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

Cong-Qiu Chu, MD's 89 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Oregon

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

Compare Rheumatology 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 Rheumatology 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 Cong-Qiu Chu, MD's specialty?
Cong-Qiu Chu, MD specializes in Rheumatology Physician and practices in Portland, Oregon. Credentials: MD.
How much does Cong-Qiu Chu, MD prescribe under Medicare Part D?
In 2023, Cong-Qiu Chu, MD wrote 89 Medicare Part D claims totaling $166K in drug costs for 34 beneficiaries.
What is Cong-Qiu Chu, MD's Medicare quality score?
Cong-Qiu Chu, MD has a CMS MIPS Final Score of 97.8/100 (Quality: 81). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cong-Qiu Chu, MD located?
Cong-Qiu Chu, MD is located at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239. Phone: (503) 494-1793.
What is Cong-Qiu Chu, MD's NPI number?
Cong-Qiu Chu, MD's National Provider Identifier (NPI) is 1780625780, issued on 06/09/2006.
Does Cong-Qiu Chu, MD prescribe more brand-name or generic drugs?
Cong-Qiu Chu, MD's prescribing is 30% brand-name and 70% generic drugs by claim count, with $162K in brand drug costs.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Cong-Qiu Chu, MD prescribe most often?
Based on 2023 Medicare Part D data, Cong-Qiu Chu, MD's most frequently prescribed drugs include Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cong-Qiu Chu, MD accept Medicare?
Cong-Qiu Chu, MD appears in CMS Medicare data with 89 Part D claims and 34 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cong-Qiu Chu, MD's credentials?
Cong-Qiu Chu, MD's NPI is 1780625780 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.