NPPES file of Aug 9, 2026

Samuel S. Koo, MD, MPH

Orthopaedic Surgery Physician · Seattle, WA

Samuel S. Koo, MD, MPH is an orthopaedic surgery physician with a practice address in Seattle, Washington, and NPI 1467626374, issued on Apr 22, 2008. Check the license (Washington MD600772440, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1467626374
Name
Samuel S. Koo
Credential
MD, MPH
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
MD600772440 WA
036-114852 IL
Self-reported in NPPES; status is on the state search
Practice location
901 Boren Ave, Seattle, WA 98104
Phone
(206) 323-1900
Enumerated
Apr 22, 2008
Record last updated
Dec 31, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(206) 323-6868
Medicare enrollment
Enrolled (PECOS I20091014000346); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2003
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.
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Also registered at 901 Boren Ave

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

  1. Jiraya Addams, LMPMassage Therapist1477693000
  2. Stephen Barbuto, PTPhysical Therapist1679683502
  3. Janet Berg, MDPsychiatry Physician1306804885
  4. Michael Bono, PTPhysical Therapist1922061951
  5. Paul Brown, M.D.Rheumatology Physician1689749525
  6. Reyne Cha, RNPlastic Surgery Registered Nurse1104068881

Verify Samuel S. Koo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD600772440
    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 Washington 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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87% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

45 Medicare Part D claims for 26 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 23 claims were for opioids.

  1. Samuel Koo45
  2. Specialty average346

Most prescribed

  1. Oxycodone Hcl20 claims
  2. Ondansetron Hcl14 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.

Industry payments in 2024: $2,314.19

31 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Smith+Nephew, Inc. 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.

  1. Samuel Koo$2,314
  2. Specialty average$23,023

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. Proliance Surgeons Inc P SSeattle, WA

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

Samuel S. Koo among 656 orthopaedic surgery physician records in Washington

Samuel S. Koo, MD, MPH is one of 656 orthopaedic surgery physician records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 66% of them.

  • NPI issued2008 · 66% of these records are older, 29% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2003 · median 2004 among the 385 with a school on file
  • Record last updated2012 · 63% 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 Washington 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 Washington

There are 656 orthopaedic surgery physician records in Washington.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Michael Brage, M.D.Seattle, WA 981041194728709
  2. Ashraf El Naga, M.D.Seattle, WA 981041215294087
  3. Mary ErdmanSeattle, WA 981041144682311
  4. Daniel Flugstad, M.D.Seattle, WA 981041417924325
  5. Douglas Hanel, M.D.Seattle, WA 981041972540615
  6. Joan Hendricks, MDSeattle, WA 981041083870075
  7. Dennis Kvidera, MDSeattle, WA 981041639111040
  8. Keith Mayo, MDSeattle, WA 981041972510014

Common questions

What is Samuel S. Koo, MD, MPH's NPI number?

Samuel S. Koo, MD, MPH's National Provider Identifier (NPI) is 1467626374, issued on Apr 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Samuel S. Koo, MD, MPH located?

The NPPES record lists a practice address at 901 Boren Ave, Seattle, WA, 98104. Phone: (206) 323-1900. Providers update this record themselves, so call before visiting.

How can I verify Samuel S. Koo, MD, MPH's license?

NPPES lists Washington license number MD600772440, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Samuel S. Koo, MD, MPH prescribe under Medicare Part D?

In 2024, Samuel S. Koo, MD, MPH had 45 Medicare Part D claims for 26 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

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.