NPPES file of Aug 9, 2026

Susan A. Blasi, D.O.

Family Medicine Physician · Lake Oswego, OR

Susan A. Blasi, D.O. is a family medicine physician with a practice address in Lake Oswego, Oregon, and NPI 1164877023, issued on Apr 28, 2016. Check the license (Oregon DO200035, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164877023
Name
Susan A. Blasi
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
DO200035 OR
Self-reported in NPPES; status is on the state search
Practice location
17550 Provost St Ste 201, Lake Oswego, OR 97034
Phone
(503) 513-3350
Enumerated
Apr 28, 2016
Record last updated
Jan 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200716003629); accepts Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 2016
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 17550 Provost St Ste 201

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

  1. Amanda Barclay, PA-CPhysician Assistant1053960104
  2. Stephanie Britcher, PTPhysical Therapist1346591005
  3. Eleanor Debakker, PTPhysical Therapist1831669191
  4. Randy Dittmar, PTPhysical Therapist1376142133
  5. Caitlin Duran, PTPhysical Therapist1679063531
  6. Leslie Gustafson, PA-CPhysician Assistant1922405059

Verify Susan A. Blasi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license DO200035
    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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17% more Medicare Part D claims than the average family medicine physician in 2024

4,133 Medicare Part D claims for 349 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 88 claims were for opioids.

  1. Susan Blasi4,133
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium297 claims
  2. Levothyroxine Sodium264 claims
  3. Amlodipine Besylate194 claims
  4. Lisinopril146 claims
  5. Metoprolol Succinate126 claims
  6. Omeprazole108 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.

Bills Medicare through one group practice

  1. Providence Health And Services OregonPortland, OR

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

Susan A. Blasi among 2,847 family medicine physician records in Oregon

Susan A. Blasi, D.O. is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2016 · median 2009 among the 1,671 with a school on file
  • Record last updated2021 · 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 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 family medicine physician records list a practice address in Lake Oswego

They are 24 of the 1,377 NPPES records with a practice address in Lake Oswego, and 2,847 family medicine physician records in Oregon.

The 8 family medicine physician records with the nearest ZIP codes

  1. Josh Gepner, MDLake Oswego, OR 970341174778328
  2. David Lee, MDLake Oswego, OR 970341548310352
  3. Samantha McKay, M.D.Lake Oswego, OR 970341801087283
  4. Thomas Raines-Morris, MD, MPHLake Oswego, OR 970341205369873
  5. Marco Pocholo Valencia, M.D.Lake Oswego, OR 970341487966107
  6. Kar-Yee Wu, MDLake Oswego, OR 970341861418832
  7. Marion Darling, MDLake Oswego, OR 970351558366989
  8. Cynthia Dumler, M.D.Lake Oswego, OR 970351851342489

Common questions

What is Susan A. Blasi, D.O.'s NPI number?

Susan A. Blasi, D.O.'s National Provider Identifier (NPI) is 1164877023, issued on Apr 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Susan A. Blasi, D.O. located?

The NPPES record lists a practice address at 17550 Provost St Ste 201, Lake Oswego, OR, 97034. Phone: (503) 513-3350. Providers update this record themselves, so call before visiting.

How can I verify Susan A. Blasi, D.O.'s license?

NPPES lists Oregon license number DO200035, 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 Susan A. Blasi, D.O. prescribe under Medicare Part D?

In 2024, Susan A. Blasi, D.O. had 4,133 Medicare Part D claims for 349 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.