2026 NPPES data Internal Medicine Physician NPI 1083862403 MD
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Alireza Shabani-Ardali, MD

Internal Medicine Physician in Corvallis, 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
608
Medicare Part D claims · 203 beneficiaries · Internal Medicine Physician avg: 3K

What the federal data shows

Alireza Shabani-Ardali, MD filed 608 Medicare Part D claims in 2023 as a Internal Medicine Physician in Corvallis, Oregon.

608
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.

Alireza Shabani-Ardali, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

608 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

Alireza Shabani-Ardali, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Alireza Shabani-Ardali, MD?

Quality data not reported

NPI registry status

Active

Issued 08/28/2008

NPI 1083862403

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

608 78% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Oregon

How Internal Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Internal Medicine Physician share within Oregon

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

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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).

Alireza Shabani-Ardali, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 3600 NW SAMARITAN DR, Corvallis, OR, 97330, with a listed phone of (541) 768-5111. NPI 1083862403 was issued on 08/28/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Shabani-Ardali 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 608 prescription claims written by this provider, covering 203 Medicare beneficiaries and totaling roughly $48K in drug spend, with an opioid prescribing rate of 4.6%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

3600 NW SAMARITAN DR
Corvallis, OR 97330

Provider Details

NPI 1083862403
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 08/28/2008

Hospital and facility affiliations

Facilities where Alireza Shabani-Ardali, 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.

Southern California Permanente Medical Group
Los Angeles, CA

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

Medicare Part D Prescribing Data

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

608
Total Claims
$48K
Total Drug Cost
203
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
778
Total Day Supply
18,532
Generic Drug Cost
$10K
Opioid Claims
28 (4.6% rate)
Antibiotic Claims
83

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
2.21
Gender Split
53% female / 47% male
Age Distribution
<65: 17, 65-74: 72, 75-84: 74, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What Alireza Shabani-Ardali, 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
Pantoprazole Sodium
24
Atorvastatin Calcium
22
Hydralazine Hcl
21
Levothyroxine Sodium
20
Eliquis
Apixaban
18
Oxycodone Hcl
18
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
16
Potassium Chloride
16
Amlodipine Besylate
15
Furosemide
15

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

Internal Medicine Physician Overview

How Alireza Shabani-Ardali, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Alireza Shabani-Ardali, MD's 608 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Oregon

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

Compare 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 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 Alireza Shabani-Ardali, MD's specialty?
Alireza Shabani-Ardali, MD specializes in Internal Medicine Physician and practices in Corvallis, Oregon. Credentials: MD.
How much does Alireza Shabani-Ardali, MD prescribe under Medicare Part D?
In 2023, Alireza Shabani-Ardali, MD wrote 608 Medicare Part D claims totaling $48K in drug costs for 203 beneficiaries.
Where is Alireza Shabani-Ardali, MD located?
Alireza Shabani-Ardali, MD is located at 3600 NW SAMARITAN DR, Corvallis, OR, 97330. Phone: (541) 768-5111.
What is Alireza Shabani-Ardali, MD's NPI number?
Alireza Shabani-Ardali, MD's National Provider Identifier (NPI) is 1083862403, issued on 08/28/2008.
Does Alireza Shabani-Ardali, MD prescribe opioids?
Yes, Alireza Shabani-Ardali, MD had 28 opioid claims in 2023 with an opioid prescribing rate of 4.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Alireza Shabani-Ardali, MD prescribe most often?
Based on 2023 Medicare Part D data, Alireza Shabani-Ardali, MD's most frequently prescribed drugs include Pantoprazole Sodium, Atorvastatin Calcium, Hydralazine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alireza Shabani-Ardali, MD accept Medicare?
Alireza Shabani-Ardali, MD appears in CMS Medicare data with 608 Part D claims and 203 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alireza Shabani-Ardali, MD's credentials?
Alireza Shabani-Ardali, MD's NPI is 1083862403 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.
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