Alexander C. Ritchie, PA-C
Medical Physician Assistant · Seattle, WA
Alexander C. Ritchie, PA-C is a medical physician assistant with a practice address in Seattle, Washington, and NPI 1437166204, issued on Aug 2, 2006. Check the license (Washington PA10004670, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander C. Ritchie
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA10004670 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 744-3000
- Enumerated
- Aug 2, 2006
- Record last updated
- Jun 24, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 8447310 WA
- Medicare enrollment
- Enrolled (PECOS I20060313000168); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,068 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Aaf, PA-CMedical Physician Assistant1558394171
- Sheida Aalami, M.D.Internal Medicine Physician1730573296
- Collette AbbottHospitalist Physician1306208293
- Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
- Martin Abdo, COUNSELORCounselor1821202904
- Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408
Verify Alexander C. Ritchie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA10004670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average medical physician assistant in 2024
551 Medicare Part D claims for 100 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium42 claims
- Metformin Hcl Er37 claims
- Gabapentin32 claims
- Jardiance20 claims
- Amlodipine Besylate19 claims
- Eliquis19 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): 93.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander C. Ritchie among 1,068 medical physician assistant records in Washington
Alexander C. Ritchie, PA-C is one of 1,068 medical physician assistant records with a practice address in Washington. 66% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 68% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2003 · median 2013 among the 581 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Washington
There are 1,068 medical physician assistant records in Washington.
All 1,068 in Washington → Every provider in Seattle → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Noor Aaf, PA-CSeattle, WA 981041558394171
- Taddele Ambachew, PA-CSeattle, WA 981041992738512
- Michelle Cardenas, PA-CSeattle, WA 981041346255718
- Honghue Duong, PASeattle, WA 981041154336535
- Lulu Gizaw, PA-CSeattle, WA 981041962417345
- Steven Kuntz, PA-CSeattle, WA 981041396752515
- Agnes Navarro, PASeattle, WA 981041588670020
- Lisa Parker, PA-CSeattle, WA 981041396729349
Common questions
What is Alexander C. Ritchie, PA-C's NPI number?
Alexander C. Ritchie, PA-C's National Provider Identifier (NPI) is 1437166204, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander C. Ritchie, PA-C located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 744-3000. Providers update this record themselves, so call before visiting.
How can I verify Alexander C. Ritchie, PA-C's license?
NPPES lists Washington license number PA10004670, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Alexander C. Ritchie, PA-C prescribe under Medicare Part D?
In 2024, Alexander C. Ritchie, PA-C had 551 Medicare Part D claims for 100 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Alexander C. Ritchie, PA-C's MIPS final score?
The 2023 MIPS final score is 93.1 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.