Michael S. Patterson, PAC
Physician Assistant · Chewelah, WA
Michael S. Patterson, PAC is a physician assistant with a practice address in Chewelah, Washington, and NPI 1639298268, issued on Mar 28, 2007. Check the license (Washington PA10003228, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael S. Patterson
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA10003228 WA
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Webster, Chewelah, WA 99109
- Phone
- (509) 935-8211
- Enumerated
- Mar 28, 2007
- Record last updated
- Feb 3, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040914000514); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Verify Michael S. Patterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA10003228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average physician assistant in 2024
530 Medicare Part D claims for 298 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Prednisone73 claims
- Azithromycin47 claims
- Amoxicillin-Clavulanate Potass42 claims
- Methylprednisolone34 claims
- Nitrofurantoin Mono-Macro27 claims
- Cephalexin24 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 2 group practices
- Multicare Health SystemTacoma, WA
- Northside Family PhysiciansSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Patterson among 3,718 physician assistant records in Washington
Michael S. Patterson, 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 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 73% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1994 · median 2017 among the 2,460 with a school on file
- Record last updated2015 · 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).
4 physician assistant records list a practice address in Chewelah
They are 4 of the 113 NPPES records with a practice address in Chewelah, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Chewelah → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Bryan Dority, PAChewelah, WA 991091811723521
- Michael Dunniway, PACChewelah, WA 991091851518625
- Carolyn Fullmer, PACChewelah, WA 991091275686669
- Jack HostetlerColfax, WA 991111659259638
- Raylene Lawrence, PA-CColfax, WA 991111932286531
- Richard Cardenas, PHYSICIAN ASSISTANTColville, WA 991141649607631
- Ryan Dix, PACColville, WA 991141841798428
- William Hartman, PA-CColville, WA 991141225140924
Common questions
What is Michael S. Patterson, PAC's NPI number?
Michael S. Patterson, PAC's National Provider Identifier (NPI) is 1639298268, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Patterson, PAC located?
The NPPES record lists a practice address at 500 W Webster, Chewelah, WA, 99109. Phone: (509) 935-8211. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Patterson, PAC's license?
NPPES lists Washington license number PA10003228, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Michael S. Patterson, PAC prescribe under Medicare Part D?
In 2024, Michael S. Patterson, PAC had 530 Medicare Part D claims for 298 beneficiaries; the average among physician assistant prescribers was 830. 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.