NPPES file of Aug 9, 2026

David Lawrence Chamberland, MD

Rheumatology Physician · Medford, OR

David Lawrence Chamberland, MD is a rheumatology physician with a practice address in Medford, Oregon, and NPI 1447293311, issued on Jun 14, 2006. Check the license (Oregon MD26693, 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
1447293311
Name
David Lawrence Chamberland
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
MD26693 OR
Self-reported in NPPES; status is on the state search
Practice location
1365 Poplar Dr, Medford, OR 97504
Phone
(541) 773-2233
Enumerated
Jun 14, 2006
Record last updated
Nov 20, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060822000531); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1365 Poplar Dr

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

  1. Christine Konya, MDRheumatology Physician1679704241
  2. Dominik Sokalski, M.D.Rheumatology Physician1104016278

Verify David Lawrence Chamberland in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD26693
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

25% more Medicare Part D claims than the average rheumatology physician in 2024

2,477 Medicare Part D claims for 451 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 234 claims were for opioids.

  1. David Chamberland2,477
  2. Specialty average1,978

Most prescribed

  1. Methotrexate599 claims
  2. Hydroxychloroquine Sulfate331 claims
  3. Prednisone311 claims
  4. Leflunomide130 claims
  5. Sulfasalazine125 claims
  6. Hydrocodone-Acetaminophen103 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 practice group's MIPS final score for 2023 (Medicare payment program): 73.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score95.8
  2. Costout of 100 · 30%17.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $65.38

4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Chamberland$65.38
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Rheumatology Clinic LLCMedford, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rheumatology Physician providers in Oregon

There are 101 rheumatology physician records in Oregon.

Other rheumatology physician records in Oregon

  1. Mary Abraham, MDCorvallis, OR1073876199
  2. Alfredo Aguirre, M.D.Portland, OR1184019267
  3. Elizabeth Anderson, MDPortland, OR1639632581
  4. Kathryn Baker, DOPortland, OR1245327295
  5. Andre Barkhuizen, M.D.Portland, OR1982639480
  6. Jennifer Barton, M.D.Portland, OR1306015995
  7. Mohamad Bittar, M.D.Portland, OR1942615240
  8. Kent Blakely, MDHermiston, OR1134222458
  9. Rosario Bonafede, MDPortland, OR1730125667
  10. Simona Braun, MDEugene, OR1972677045

Common questions

What is David Lawrence Chamberland, MD's NPI number?

David Lawrence Chamberland, MD's National Provider Identifier (NPI) is 1447293311, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Lawrence Chamberland, MD located?

The NPPES record lists a practice address at 1365 Poplar Dr, Medford, OR, 97504. Phone: (541) 773-2233. Providers update this record themselves, so call before visiting.

How can I verify David Lawrence Chamberland, MD's license?

NPPES lists Oregon license number MD26693, 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 Lawrence Chamberland, MD prescribe under Medicare Part D?

In 2024, David Lawrence Chamberland, MD had 2,477 Medicare Part D claims for 451 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is David Lawrence Chamberland, MD's MIPS final score?

The 2023 MIPS final score is 73.5 of 100, reported for the practice group. 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.