Robb Nels Larsen, MD
Orthopaedic Surgery Physician · Springfield, OR
Robb Nels Larsen, MD is an orthopaedic surgery physician with a practice address in Springfield, Oregon, and NPI 1396738274, issued on Aug 26, 2005. Check the license (Oregon MD26431, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robb Nels Larsen
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- MD26431 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1435 G St, Springfield, OR 97477
- Phone
- (541) 242-4812
- Enumerated
- Aug 26, 2005
- Record last updated
- Jan 2, 2026
- Fax
- (541) 242-4813
- Medicaid ID
- 028273 OR
- Medicare enrollment
- Enrolled (PECOS I20060814000370); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 335 in Oregon → Look up another NPI →
Also registered at 1435 G St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Allard, PA-CPhysician Assistant1396320396
- Miranda Barlow, DNP, FNPFamily Nurse Practitioner1588042030
- Joseph Beal, MA, QMHP-R, CADC-RMental Health Counselor1942886403
- Crystal Bruce, QMHA-RMental Health Counselor1073251856
- Sebastian BrunningMedical Physician Assistant1205453420
- Ashley Bryson, MDFamily Medicine Physician1356704159
Verify Robb Nels Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD26431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
38 Medicare Part D claims for 21 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 26 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen11 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): 93.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.04
1 payment: food and beverage; the largest payer was Bioventus LLC. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Bay Area Hospital DistrictCoos Bay, OR
- Samaritan Pacific Health Services IncNewport, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robb Nels Larsen among 335 orthopaedic surgery physician records in Oregon
Robb Nels Larsen, MD is one of 335 orthopaedic surgery physician records with a practice address in Oregon. 61% 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, 83% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated1997 · median 2002 among the 165 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Oregon
There are 335 orthopaedic surgery physician records in Oregon.
All 335 in Oregon → Every provider in Springfield → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Thomas Hasbach, M.D.Springfield, OR 974771437123056
- Robert Kloepper, M.D.Roseburg, OR 974711295705481
- Cary Sanders, MDRoseburg, OR 974711780782367
- Susan Williams, MDRoseburg, OR 974711558395053
- Michael Krnacik, MD, PH.DRoseburg, OR 974701902880024
- William Streitz, MDRoseburg, OR 974701720009129
- Thomas Thompson, MDRoseburg, OR 974701538118799
- Richard Jany, MDReedsport, OR 974671316922602
Common questions
What is Robb Nels Larsen, MD's NPI number?
Robb Nels Larsen, MD's National Provider Identifier (NPI) is 1396738274, issued on Aug 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robb Nels Larsen, MD located?
The NPPES record lists a practice address at 1435 G St, Springfield, OR, 97477. Phone: (541) 242-4812. Providers update this record themselves, so call before visiting.
How can I verify Robb Nels Larsen, MD's license?
NPPES lists Oregon license number MD26431, 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 Robb Nels Larsen, MD prescribe under Medicare Part D?
In 2024, Robb Nels Larsen, MD had 38 Medicare Part D claims for 21 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Robb Nels Larsen, MD's MIPS final score?
The 2023 MIPS final score is 93.6 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.