Samantha Johnston, PA-C
Medical Physician Assistant · Cottonwood, AZ
Samantha Johnston, PA-C is a medical physician assistant with a practice address in Cottonwood, Arizona, and NPI 1336514645, issued on Dec 11, 2015. Check the license (Arizona 6297, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samantha Johnston
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 6297 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 51 Brian Mickelsen Pkwy, Cottonwood, AZ 86326
- Phone
- (928) 639-8132
- Enumerated
- Dec 11, 2015
- Record last updated
- Jun 2, 2026
- Fax
- (866) 279-8919
- Medicaid ID
- 090822 AZ
- Medicare enrollment
- Enrolled (PECOS I20160106001707); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 996 in Arizona → Look up another NPI →
Also registered at 51 Brian Mickelsen Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathy Green, M.D., M.P.H.Family Medicine Physician1053464065
- Laurel Mueller, DOFamily Medicine Physician1154527778
- Kimberly Scott-Freeman, RDHDental Hygienist1174071047
Verify Samantha Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 6297Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average medical physician assistant in 2024
4,045 Medicare Part D claims for 325 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 233 claims were for opioids.
Most prescribed
- Levothyroxine Sodium183 claims
- Lisinopril168 claims
- Losartan Potassium149 claims
- Atorvastatin Calcium132 claims
- Gabapentin126 claims
- Metformin Hcl120 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
- County OF YavapaiPrescott, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samantha Johnston among 996 medical physician assistant records in Arizona
Samantha Johnston, PA-C is one of 996 medical physician assistant records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 63% of them.
- NPI issued2015 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2015 · median 2012 among the 541 with a school on file
- Record last updated2026 · 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 medical physician assistant records list a practice address in Cottonwood
They are 10 of the 555 NPPES records with a practice address in Cottonwood, and 996 medical physician assistant records in Arizona.
All 996 in Arizona → Every provider in Cottonwood → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Elaine Accomando, PACottonwood, AZ 863261033189444
- Kim Carlton, PA-CCottonwood, AZ 863261013092543
- Terah Cave, PA-CCottonwood, AZ 863261568476802
- Roberta Funck, PA-CCottonwood, AZ 863261700086816
- Linda Haggard, PACCottonwood, AZ 863261871508655
- Chelsea Hess, PACottonwood, AZ 863261528795010
- Adam HollenbackCottonwood, AZ 863261366273682
- Usa Hongyok, PA-CCottonwood, AZ 863261447242607
Common questions
What is Samantha Johnston, PA-C's NPI number?
Samantha Johnston, PA-C's National Provider Identifier (NPI) is 1336514645, issued on Dec 11, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Johnston, PA-C located?
The NPPES record lists a practice address at 51 Brian Mickelsen Pkwy, Cottonwood, AZ, 86326. Phone: (928) 639-8132. Providers update this record themselves, so call before visiting.
How can I verify Samantha Johnston, PA-C's license?
NPPES lists Arizona license number 6297, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Samantha Johnston, PA-C prescribe under Medicare Part D?
In 2024, Samantha Johnston, PA-C had 4,045 Medicare Part D claims for 325 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.