NPPES file of Aug 9, 2026

Steven Arthur Lambrou, M.D.

Emergency Medicine Physician · Portland, OR

Steven Arthur Lambrou, M.D. is an emergency medicine physician with a practice address in Portland, Oregon, and NPI 1083095897, issued on Jun 17, 2015. Check the license (Oregon MD211266, 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
1083095897
Name
Steven Arthur Lambrou
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
MD211266 OR
MD467678 PA
Self-reported in NPPES; status is on the state search
Practice location
10123 SE Market St, Portland, OR 97216
Phone
(503) 251-6155
Enumerated
Jun 17, 2015
Record last updated
Aug 31, 2022
Fax
(503) 261-6769
Medicaid ID
100019300 FL
Medicare enrollment
Enrolled (PECOS I20220830002185); accepts Medicare assignment
Medical or professional school
Florida State University College Of Medicine, 2015
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.
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Also registered at 10123 SE Market St

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

  1. Ellen Adrian, RNRegistered Nurse1659532141
  2. Sidney AmankwahHospitalist Physician1366062614
  3. Carrie Austin, MDHospitalist Physician1922411412
  4. Maureen Bailey, P.A.Medical Physician Assistant1841744133
  5. Claire Barnes, M.S., CCC-SLPSpeech-Language Pathologist1194037234
  6. Carson Bauder, MDFamily Medicine Physician1528265949

Verify Steven Arthur Lambrou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD211266
    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.

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30% fewer Medicare Part D claims than the average emergency medicine physician in 2024

159 Medicare Part D claims for 111 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Steven Lambrou159
  2. Specialty average226

Most prescribed

  1. Cephalexin14 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): 97.8 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 score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Portland Adventist Medical CenterPortland, OR

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

Steven Arthur Lambrou among 1,079 emergency medicine physician records in Oregon

Steven Arthur Lambrou, M.D. is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.

  • NPI issued2015 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2015 · median 2013 among the 557 with a school on file
  • Record last updated2022 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Oregon

There are 1,079 emergency medicine physician records in Oregon.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Alec Belman, MDPortland, OR 972161992755987
  2. Mathew Berner, MDPortland, OR 972161831391358
  3. Ameet Brahmavar, MDPortland, OR 972161205959947
  4. Hani Darwich, MDPortland, OR 972161003873340
  5. Kevin Dean, M.D.Portland, OR 972161841215480
  6. Marcel Dupre', MDPortland, OR 972161326000944
  7. Erik Egsieker, MDPortland, OR 972161205898806
  8. Joe Howton, MDPortland, OR 972161942263579

Common questions

What is Steven Arthur Lambrou, M.D.'s NPI number?

Steven Arthur Lambrou, M.D.'s National Provider Identifier (NPI) is 1083095897, issued on Jun 17, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Steven Arthur Lambrou, M.D. located?

The NPPES record lists a practice address at 10123 SE Market St, Portland, OR, 97216. Phone: (503) 251-6155. Providers update this record themselves, so call before visiting.

How can I verify Steven Arthur Lambrou, M.D.'s license?

NPPES lists Oregon license number MD211266, 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 Steven Arthur Lambrou, M.D. prescribe under Medicare Part D?

In 2024, Steven Arthur Lambrou, M.D. had 159 Medicare Part D claims for 111 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Steven Arthur Lambrou, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.8 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.