Mason D. Simkins, PA-C
Medical Physician Assistant · Twin Falls, ID
Mason D. Simkins, PA-C is a medical physician assistant with a practice address in Twin Falls, Idaho, and NPI 1275287419, issued on Feb 7, 2022. Check the license with the Idaho board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mason D. Simkins
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 260 Falls Ave Ste D, Twin Falls, ID 83301
- Phone
- (208) 733-6700
- Enumerated
- Feb 7, 2022
- Record last updated
- Feb 7, 2022
- Fax
- (208) 733-0803
- Medicare enrollment
- Enrolled (PECOS I20221004000481); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 371 in Idaho → Look up another NPI →
Verify Mason D. Simkins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Idaho 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
78% fewer Medicare Part D claims than the average medical physician assistant in 2024
256 Medicare Part D claims for 207 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Azithromycin31 claims
- Amoxicillin-Clavulanate Potass25 claims
- Fluticasone Propionate21 claims
- Nitrofurantoin Mono-Macro20 claims
- Sulfamethoxazole-Trimethoprim18 claims
- Albuterol Sulfate Hfa16 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
- Urgent Care OF Idaho LLCJerome, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mason D. Simkins among 371 medical physician assistant records in Idaho
Mason D. Simkins, PA-C is one of 371 medical physician assistant records with a practice address in Idaho. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 6% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2021 · median 2011 among the 249 with a school on file
- Record last updated2022 · 53% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 medical physician assistant records list a practice address in Twin Falls
They are 15 of the 1,660 NPPES records with a practice address in Twin Falls, and 371 medical physician assistant records in Idaho.
All 371 in Idaho → Every provider in Twin Falls → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Kari Brose, PATwin Falls, ID 833011356308282
- Gail Cook, P.A.Twin Falls, ID 833011447217955
- Cameron Freeman, PA-CTwin Falls, ID 833011174860878
- Jonathan Pittard, PA-CTwin Falls, ID 833011376876599
- Gladys Rasch, MPA-CTwin Falls, ID 833011194909598
- Robert ReeveTwin Falls, ID 833011063968741
- Sarah ReinekeTwin Falls, ID 833011114600129
- Merrick Reynolds, PATwin Falls, ID 833011891097234
Common questions
What is Mason D. Simkins, PA-C's NPI number?
Mason D. Simkins, PA-C's National Provider Identifier (NPI) is 1275287419, issued on Feb 7, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mason D. Simkins, PA-C located?
The NPPES record lists a practice address at 260 Falls Ave Ste D, Twin Falls, ID, 83301. Phone: (208) 733-6700. Providers update this record themselves, so call before visiting.
How can I verify Mason D. Simkins, PA-C's license?
Search the Idaho board that licenses this profession; the NPPES record confirms identity only.
How much does Mason D. Simkins, PA-C prescribe under Medicare Part D?
In 2024, Mason D. Simkins, PA-C had 256 Medicare Part D claims for 207 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.