2026 NPPES data Hospitalist Physician NPI 1811317944 M.D.
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BENJAMIN HORNUNG, M.D.

Hospitalist Physician in PORTLAND, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
435
Medicare Part D claims · 227 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.623/100
▲ 2 pts above national avg 83.1 · [object Object]
Industry payments
$154.99
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BENJAMIN HORNUNG, M.D. reported a CMS MIPS final score of 84.623/100 — above the 83.1 national average — and filed 435 Medicare Part D claims in 2023.

84.623/100
MIPS score · +2 vs avg
435
Part D claims, 2023
77%
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.

BENJAMIN HORNUNG, 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

85 45th percentile higher than 45% 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. 90–100: 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

Board certification likely (heuristic — not verified)

BENJAMIN HORNUNG, M.D. 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 BENJAMIN HORNUNG, M.D.?

Near national average

NPI registry status

Active

Issued 04/16/2014

NPI 1811317944

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

435 51% vs specialty avg

2023 prescription claims

Specialty avg: 888

MIPS final score

84.623/100 1.5230000000000103% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Hospitalist Physician compares to other specialties among Oregon providers

Oregon providers

Hospitalist Physician share within Oregon

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Oregon

Medicare quality performance — MIPS

BENJAMIN HORNUNG, M.D.'s 2023 MIPS final score plotted against the Hospitalist Physician national average

Near national average
MIPS Final Score
84.623/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hospitalist Physician) — 84.623/100 vs national avg 83.1

0%100%National avg83%84.6%
MIPS final score (Hospitalist Physician) — 84.623/100 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).

BENJAMIN HORNUNG, M.D. is a Hospitalist Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1811317944. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

BENJAMIN HORNUNG, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 3181 SW SAM JACKSON PARK RD, PORTLAND, OR, 97239, with a listed phone of (503) 494-8211. NPI 1811317944 was issued on 04/16/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HORNUNG 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 435 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $283K in drug spend, split 23% brand-name and 77% 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 84.623/100 for the 2023 performance year (Quality 94.8303, Cost 53.913), compared with the national average of 83.1.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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 1811317944
Specialty Hospitalist Physician
Credentials M.D.
Gender Male
NPI Issued 04/16/2014

CMS Quality Score (MIPS)

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

84.623
Final Score
Avg: 83.1
94.8303
Quality
53.913
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where BENJAMIN HORNUNG, 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.

NORTHWEST GASTROENTEROLOGY CLINIC LLC
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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BENJAMIN HORNUNG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$155

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

BENJAMIN HORNUNG, M.D. — brand share 23.0%
Specialty average (est.)

23% brand-name claims vs 77% generic, on 435 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.

435
Total Claims
$283K
Total Drug Cost
227
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
651
Total Day Supply
14,546
Brand vs Generic
23% brand / 77% generic
Brand Drug Cost
$270K
Generic Drug Cost
$13K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
1.24
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Omeprazole
128
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
87
Pantoprazole Sodium
16
Mirtazapine
14
Dexlansoprazole Dr
Dexlansoprazole
12
Famotidine
12
Zenpep
Lipase/Protease/Amylase
11
Gavilyte-C
"Peg3350/Sod Sulf
N/A
Gavilyte-G
"Peg3350/Sod Sulf
N/A
Sod Sulf-Potass Sulf-Mag Sulf
"Sodium
N/A

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

Hospitalist Physician Overview

How BENJAMIN HORNUNG, M.D. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

BENJAMIN HORNUNG, M.D.'s 435 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Oregon

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BENJAMIN HORNUNG, M.D.'s specialty?
BENJAMIN HORNUNG, M.D. specializes in Hospitalist Physician and practices in PORTLAND, Oregon. Credentials: M.D..
How much does BENJAMIN HORNUNG, M.D. prescribe under Medicare Part D?
In 2023, BENJAMIN HORNUNG, M.D. wrote 435 Medicare Part D claims totaling $283K in drug costs for 227 beneficiaries.
What is BENJAMIN HORNUNG, M.D.'s Medicare quality score?
BENJAMIN HORNUNG, M.D. has a CMS MIPS Final Score of 84.623/100 (Quality: 94.8303, Cost: 53.913). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BENJAMIN HORNUNG, M.D. located?
BENJAMIN HORNUNG, M.D. is located at 3181 SW SAM JACKSON PARK RD, PORTLAND, OR, 97239. Phone: (503) 494-8211.
What is BENJAMIN HORNUNG, M.D.'s NPI number?
BENJAMIN HORNUNG, M.D.'s National Provider Identifier (NPI) is 1811317944, issued on 04/16/2014.
Does BENJAMIN HORNUNG, M.D. prescribe more brand-name or generic drugs?
BENJAMIN HORNUNG, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $270K in brand drug costs.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does BENJAMIN HORNUNG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BENJAMIN HORNUNG, M.D.'s most frequently prescribed drugs include Omeprazole, Peg 3350-Electrolyte, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BENJAMIN HORNUNG, M.D. accept Medicare?
BENJAMIN HORNUNG, M.D. appears in CMS Medicare data with 435 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BENJAMIN HORNUNG, M.D.'s credentials?
BENJAMIN HORNUNG, M.D.'s NPI is 1811317944 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