Justin Michael Williams, PA-C
Surgical Physician Assistant · Oro Valley, AZ
Justin Michael Williams, PA-C is a surgical physician assistant with a practice address in Oro Valley, Arizona, and NPI 1508457193, issued on Jan 27, 2021. Check the license with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justin Michael Williams
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- Practice location
- 257 E Crooked Stick Dr, Oro Valley, AZ 85737
- Phone
- (520) 401-9171
- Enumerated
- Jan 27, 2021
- Record last updated
- Jan 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210317002723); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 420 in Arizona → Look up another NPI →
Verify Justin Michael Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average surgical physician assistant in 2024
231 Medicare Part D claims for 63 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Brilinta97 claims
- Prasugrel Hcl95 claims
- Clopidogrel16 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: $3,391.25
142 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Tucson Physician Group Holdings LLCTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Michael Williams among 420 surgical physician assistant records in Arizona
Justin Michael Williams, PA-C is one of 420 surgical physician assistant records with a practice address in Arizona. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 14% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2015 among the 270 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 surgical physician assistant records list a practice address in Oro Valley
They are 4 of the 542 NPPES records with a practice address in Oro Valley, and 420 surgical physician assistant records in Arizona.
All 420 in Arizona → Every provider in Oro Valley → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Sean Flynn, CSFAOro Valley, AZ 857371770097453
- David Flores, CSFATucson, AZ 857411902211600
- Cheryl Kelley, PATucson, AZ 857411386357481
- Sonrisa Lathen, PATucson, AZ 857411588633242
- Mukesh Shah, CFATucson, AZ 857301619287620
- Grace Marquez, CFATucson, AZ 857461932244050
- Caitlin Harper, CSFATucson, AZ 857471417369729
- Jennifer Osborne, SA-CTucson, AZ 857481366955155
Common questions
What is Justin Michael Williams, PA-C's NPI number?
Justin Michael Williams, PA-C's National Provider Identifier (NPI) is 1508457193, issued on Jan 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Justin Michael Williams, PA-C located?
The NPPES record lists a practice address at 257 E Crooked Stick Dr, Oro Valley, AZ, 85737. Phone: (520) 401-9171. Providers update this record themselves, so call before visiting.
How can I verify Justin Michael Williams, PA-C's license?
Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Justin Michael Williams, PA-C prescribe under Medicare Part D?
In 2024, Justin Michael Williams, PA-C had 231 Medicare Part D claims for 63 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.