NPPES file of Aug 9, 2026

David P. Larson, MD

Internal Medicine Physician · Beaverton, OR

David P. Larson, MD is an internal medicine physician with a practice address in Beaverton, Oregon, and NPI 1992798599, issued on Aug 30, 2005. Check the license (Oregon MD29034, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992798599
Name
David P. Larson
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD29034 OR
34056 AZ
Self-reported in NPPES; status is on the state search
Practice location
16043 SW Waxwing Way, Beaverton, OR 97007
Phone
(503) 715-3414
Enumerated
Aug 30, 2005
Record last updated
Aug 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(503) 352-4775
Medicaid ID
500605904 OR
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 16043 SW Waxwing Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kristen Shaffer, FNP-CFamily Nurse Practitioner1164772893

Verify David P. Larson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD29034
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

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11.0 times the Medicare Part D claims of the average internal medicine physician in 2024

34,906 Medicare Part D claims for 1,139 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 958 claims were for opioids.

  1. David Larson34,906
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium2,173 claims
  2. Eliquis1,720 claims
  3. Gabapentin1,511 claims
  4. Levothyroxine Sodium1,359 claims
  5. Furosemide1,135 claims
  6. Amlodipine Besylate887 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 4.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%14.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

David P. Larson among 2,116 internal medicine physician records in Oregon

David P. Larson, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 internal medicine physician records list a practice address in Beaverton

They are 46 of the 3,604 NPPES records with a practice address in Beaverton, and 2,116 internal medicine physician records in Oregon.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Helen Henry, MDBeaverton, OR 970071073606919
  2. John Rex, M.D.Beaverton, OR 970071669697959
  3. Mark Bates, MDBeaverton, OR 970061558453696
  4. Shuang Chen, MDBeaverton, OR 970061477202224
  5. Sarah Dunham, MDBeaverton, OR 970081043384159
  6. Lawrence Elzinga, MDBeaverton, OR 970061518026962
  7. Marni Foley, MDBeaverton, OR 970061467544502
  8. James Iwaniec, MDHillsboro, OR 970061356427215

Common questions

What is David P. Larson, MD's NPI number?

David P. Larson, MD's National Provider Identifier (NPI) is 1992798599, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is David P. Larson, MD located?

The NPPES record lists a practice address at 16043 SW Waxwing Way, Beaverton, OR, 97007. Phone: (503) 715-3414. Providers update this record themselves, so call before visiting.

How can I verify David P. Larson, MD's license?

NPPES lists Oregon license number MD29034, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David P. Larson, MD prescribe under Medicare Part D?

In 2024, David P. Larson, MD had 34,906 Medicare Part D claims for 1,139 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is David P. Larson, MD's MIPS final score?

The 2023 MIPS final score is 4.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.