Randall Mack, PA-C
Physician Assistant · Plains, MT
Randall Mack, PA-C is a physician assistant with a practice address in Plains, Montana, and NPI 1346356359, issued on Aug 22, 2006. Check the license (Montana MED-PAC-LIC-190, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Randall Mack
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- MED-PAC-LIC-190 MT
PA60595202 WA
Self-reported in NPPES; status is on the state search - Practice location
- 10 Kruger Road, Plains, MT 59859
- Phone
- (406) 826-4800
- Enumerated
- Aug 22, 2006
- Record last updated
- Apr 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 1346356359 WA
- Medicare enrollment
- Enrolled (PECOS I20130529000075); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 698 in Montana → Look up another NPI →
Also registered at 10 Kruger Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Madden, NPNurse Practitioner1417424854
- Gwenna Olson, CRNA, RNCertified Registered Nurse Anesthetist1689272478
- Barbara Steward, DOFamily Medicine Physician1255950143
- Kathryn Whipple-Kilmer, PSYDClinical Psychologist1982981940
Verify Randall Mack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license MED-PAC-LIC-190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average physician assistant in 2024
2,630 Medicare Part D claims for 194 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 72 claims were for opioids.
Most prescribed
- Lisinopril154 claims
- Atorvastatin Calcium152 claims
- Levothyroxine Sodium148 claims
- Amlodipine Besylate124 claims
- Omeprazole90 claims
- Gabapentin85 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.
2 hospitals and group practices
- Plains Hospital CorporationPlains, MT
- Providence St Joseph Medical CenterPolson, MT · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Randall Mack among 698 physician assistant records in Montana
Randall Mack, PA-C is one of 698 physician assistant records with a practice address in Montana. 84% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 77% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1998 · median 2016 among the 514 with a school on file
- Record last updated2020 · 42% 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 Montana 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 Plains
They are 4 of the 50 NPPES records with a practice address in Plains, and 698 physician assistant records in Montana.
All 698 in Montana → Every provider in Plains → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Nicholas Lawyer, PA-CPlains, MT 598591043640758
- Benny Lindeman, PACPlains, MT 598591669406138
- Jennifer Strine, PAPlains, MT 598591649384181
- Brittany Borman, PA-CPolson, MT 598601538700893
- Louis Brenner, PA-CPolson, MT 598601609205905
- Cody Brown, PA-CPolson, MT 598601598837239
- Jamie Engeldrum, PA-CPolson, MT 598601902444300
- Scott MinerPhilipsburg, MT 598581770303281
Common questions
What is Randall Mack, PA-C's NPI number?
Randall Mack, PA-C's National Provider Identifier (NPI) is 1346356359, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Randall Mack, PA-C located?
The NPPES record lists a practice address at 10 Kruger Road, Plains, MT, 59859. Phone: (406) 826-4800. Providers update this record themselves, so call before visiting.
How can I verify Randall Mack, PA-C's license?
NPPES lists Montana license number MED-PAC-LIC-190, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Randall Mack, PA-C prescribe under Medicare Part D?
In 2024, Randall Mack, PA-C had 2,630 Medicare Part D claims for 194 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.