2026 NPPES data Infectious Disease Physician NPI 1609950849 M.D.
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Cliffton Bong, M.D.

Infectious Disease 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 8,292 in Infectious Disease 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
764
Medicare Part D claims · 103 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2/100
▲ 3 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Cliffton Bong, M.D. reported a CMS MIPS final score of 86.2/100 - above the 83.1 national average - and filed 764 Medicare Part D claims in 2023.

86.2/100
MIPS score · +3 vs avg
764
Part D claims, 2023
55%
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.

Cliffton Bong, 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

86 Top 48% higher than 52% 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 Cliffton Bong, M.D. sits

This provider among infectious disease physician peers

Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Cliffton Bong, M.D. writes more Part D claims than 73% of them and scores higher on MIPS quality than 55% - placing this provider in the high-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 quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 13Cliffton Bong, M.D.-Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 55
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Cliffton Bong, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Cliffton Bong, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 hospital affiliations - 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 Cliffton Bong, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 10/24/2006

NPI 1609950849

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

764 6% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

86.2/100 3.1 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Infectious Disease Physician compares to other specialties among Oregon providers

Oregon providers

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

Medicare quality performance, MIPS

Cliffton Bong, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average

High performer (top quartile)
MIPS Final Score
86.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) - 86.2/100 vs national avg 83.1

0%100%National avg83%86.2%
MIPS final score (Infectious Disease Physician) - 86.2/100 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).

Cliffton Bong, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 2800 N VANCOUVER AVE STE 230, Portland, OR, 97227, with a listed phone of (503) 413-4340. NPI 1609950849 was issued on 10/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Bong 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 764 prescription claims written by this provider, covering 103 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 45% brand-name and 55% 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 86.2/100 for the 2023 performance year (Quality 95.6, Cost 49.3), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

2800 N VANCOUVER AVE STE 230
Portland, OR 97227

Provider Details

NPI 1609950849
Specialty Infectious Disease Physician
Credentials M.D.
Gender Male
NPI Issued 10/24/2006

CMS Quality Score (MIPS)

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

86.2294
Final Score
Avg: 83.1
95.6409
Quality
49.3205
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Cliffton Bong, 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.

According to CMS billing records, Cliffton Bong, M.D. is affiliated with 4 Medicare-billing facilities across 2 states.

Legacy Clinics LLC
Portland, OR
Legacy Emanuel Hospital And Health Center
Portland, OR
Legacy Good Samaritan Hospital And Medical Center
Portland, OR
Legacy Salmon Creek Hospital
Vancouver, WA

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

Cliffton Bong, M.D. - brand share 45.0%
Infectious Disease Physician average

45% brand-name claims vs 55% generic, on 764 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.

764
Total Claims
$1.2M
Total Drug Cost
103
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
832
Total Day Supply
20,240
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$47K
Antibiotic Claims
326

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
2.19
Gender Split
37% female / 63% male

Top Prescribed Drugs (Medicare Part D)

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

What Cliffton Bong, 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
Ceftriaxone
Ceftriaxone Sodium
97
Genvoya
Elviteg/Cob/Emtri/Tenof Alafen
90
Tivicay
Dolutegravir Sodium
67
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
60
Descovy
Emtricitabine/Tenofov Alafenam
46
Cephalexin
32
Vancomycin Hcl
26
Cefazolin Sodium
24
Dapsone
24
Juluca
Dolutegravir/Rilpivirine
23

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

Infectious Disease Physician Overview

How Cliffton Bong, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Cliffton Bong, M.D.'s 764 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Oregon

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

Compare Infectious Disease 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 Infectious Disease 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 Cliffton Bong, M.D.'s specialty?
Cliffton Bong, M.D. specializes in Infectious Disease Physician and practices in Portland, Oregon. Credentials: M.D..
How much does Cliffton Bong, M.D. prescribe under Medicare Part D?
In 2023, Cliffton Bong, M.D. wrote 764 Medicare Part D claims totaling $1.2M in drug costs for 103 beneficiaries.
What is Cliffton Bong, M.D.'s Medicare quality score?
Cliffton Bong, M.D. has a CMS MIPS Final Score of 86.2/100 (Quality: 95.6, Cost: 49.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cliffton Bong, M.D. located?
Cliffton Bong, M.D. is located at 2800 N VANCOUVER AVE STE 230, Portland, OR, 97227. Phone: (503) 413-4340.
What is Cliffton Bong, M.D.'s NPI number?
Cliffton Bong, M.D.'s National Provider Identifier (NPI) is 1609950849, issued on 10/24/2006.
Does Cliffton Bong, M.D. prescribe more brand-name or generic drugs?
Cliffton Bong, M.D.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $1.2M in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Cliffton Bong, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Cliffton Bong, M.D.'s most frequently prescribed drugs include Ceftriaxone, Genvoya, Tivicay. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cliffton Bong, M.D. accept Medicare?
Cliffton Bong, M.D. appears in CMS Medicare data with 764 Part D claims and 103 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cliffton Bong, M.D.'s credentials?
Cliffton Bong, M.D.'s NPI is 1609950849 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

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.