NPPES file of Aug 9, 2026

Rio D. Silvernail, PAC

Physician Assistant · Grand Forks, ND

Rio D. Silvernail, PAC is a physician assistant with a practice address in Grand Forks, North Dakota, and NPI 1891881116, issued on Oct 5, 2006. Check the license (North Dakota PAC0447, as entered in NPPES) with the North Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891881116
Name
Rio D. Silvernail
Credential
PAC
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PAC0447 ND
924 AK
PA01305 OR
LP00049977 WA
PA60193517 WA
Self-reported in NPPES; status is on the state search
Practice location
1000 South Columbia Road, Grand Forks, ND 58206
Phone
(701) 780-5000
Enumerated
Oct 5, 2006
Record last updated
Apr 13, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20141010000353); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1000 South Columbia Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Minhal Alhashim, MDSurgery Physician1639309602
  2. Laura Andreson, D.O.Obstetrics & Gynecology Physician1003823907
  3. Angela Avalos, PT, MPTPhysical Therapist1619170115
  4. Joan Becker, OTRL CLTOccupational Therapist1730387549
  5. Eric Benson, MASSAGE THERAPISTMassage Therapist1992110118
  6. Justin Berry, PT DPTPhysical Therapist1457554941

Verify Rio D. Silvernail in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich North Dakota board licenses this profession
    Search for license PAC0447
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the North Dakota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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29% fewer Medicare Part D claims than the average physician assistant in 2024

589 Medicare Part D claims for 155 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 117 claims were for opioids.

  1. Rio Silvernail589
  2. Specialty average830

Most prescribed

  1. Prednisone84 claims
  2. Methotrexate68 claims
  3. Hydrocodone-Acetaminophen62 claims
  4. Hydroxychloroquine Sulfate50 claims
  5. Tramadol Hcl41 claims
  6. Duloxetine Hcl27 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 93.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. International Falls Memorial Hospital AssociationInternational Falls, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rio D. Silvernail among 464 physician assistant records in North Dakota

Rio D. Silvernail, PAC is one of 464 physician assistant records with a practice address in North Dakota. 81% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 75% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2006 · median 2017 among the 343 with a school on file
  • Record last updated2011 · 39% 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 North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

68 physician assistant records list a practice address in Grand Forks

They are 68 of the 2,524 NPPES records with a practice address in Grand Forks, and 464 physician assistant records in North Dakota.

The 8 physician assistant records with the nearest ZIP codes

  1. Paul Drown, PAGrand Forks, ND 582051669563672
  2. Kacie BrownGrand Forks Afb, ND 582041174895833
  3. Sandra McGaughey, PA-CGrand Forks, ND 582021104885508
  4. Jeanie McHugoGrand Forks, ND 582021295505824
  5. Leah FecikGrand Forks, ND 582011780554907
  6. Nicole Anne Gadon, PA-CGrand Forks, ND 582011083541718
  7. Cassidy Mindeman, PAGrand Forks, ND 582011033919352
  8. Tien-Huy NguyenGrand Forks, ND 582011144037623

Common questions

What is Rio D. Silvernail, PAC's NPI number?

Rio D. Silvernail, PAC's National Provider Identifier (NPI) is 1891881116, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rio D. Silvernail, PAC located?

The NPPES record lists a practice address at 1000 South Columbia Road, Grand Forks, ND, 58206. Phone: (701) 780-5000. Providers update this record themselves, so call before visiting.

How can I verify Rio D. Silvernail, PAC's license?

NPPES lists North Dakota license number PAC0447, as entered by the provider. Search the North Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does Rio D. Silvernail, PAC prescribe under Medicare Part D?

In 2024, Rio D. Silvernail, PAC had 589 Medicare Part D claims for 155 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Rio D. Silvernail, PAC's MIPS final score?

The 2023 MIPS final score is 93.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.