Ross M. Klein, PAC
Physician Assistant · Seattle, WA
Ross M. Klein, PAC is a physician assistant with a practice address in Seattle, Washington, and NPI 1760551931, issued on Nov 6, 2006. Check the license (Washington PA10003698, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ross M. Klein
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA10003698 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 9TH Ave, Seattle, WA 98101
- Phone
- (206) 583-6450
- Enumerated
- Nov 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 8369894 WA
- Medicare enrollment
- Enrolled (PECOS I20070816000135); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 1100 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barry Aaronson, MDHospitalist Physician1952418345
- David Aboulafia, MDHematology & Oncology Physician1043269392
- Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
- Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
- Ream AdeebAdult Health Nurse Practitioner1760868855
- Steven Adler, MDDiagnostic Ultrasound Physician1639108046
Verify Ross M. Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA10003698Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average physician assistant in 2024
211 Medicare Part D claims for 173 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Cephalexin20 claims
- Prednisone20 claims
- Tramadol Hcl20 claims
- Cefuroxime18 claims
- Hydrocodone-Acetaminophen18 claims
- Cyclobenzaprine Hcl15 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): 79.2 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).
Bills Medicare through one group practice
- Overlake Medical Clinics LLCBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ross M. Klein among 3,718 physician assistant records in Washington
Ross M. Klein, PAC is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 80% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1997 · median 2017 among the 2,460 with a school on file
- Record last updated2007 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
828 physician assistant records list a practice address in Seattle
They are 828 of the 41,956 NPPES records with a practice address in Seattle, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Seattle → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Derek Gallichotte, PACSeattle, WA 981011124179395
- Chris Johnson, PA-CSeattle, WA 981011992753875
- Kevin Keating, PACSeattle, WA 981011205885241
- Kathryn Kundert, PACSeattle, WA 981011093865503
- Laura Larson, PA-CSeattle, WA 981011376541599
- Maria Marsans, PACSeattle, WA 981011730230012
- Gina Mower, PA-CSeattle, WA 981011104037514
- Jamie Notzka, PACSeattle, WA 981011215006226
Common questions
What is Ross M. Klein, PAC's NPI number?
Ross M. Klein, PAC's National Provider Identifier (NPI) is 1760551931, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ross M. Klein, PAC located?
The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 583-6450. Providers update this record themselves, so call before visiting.
How can I verify Ross M. Klein, PAC's license?
NPPES lists Washington license number PA10003698, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Ross M. Klein, PAC prescribe under Medicare Part D?
In 2024, Ross M. Klein, PAC had 211 Medicare Part D claims for 173 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Ross M. Klein, PAC's MIPS final score?
The 2023 MIPS final score is 79.2 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.