NPPES file of Aug 9, 2026

Viviana Fonseca Auch

Physician Assistant · Helena, MT

Viviana Fonseca Auch is a physician assistant with a practice address in Helena, Montana, and NPI 1790511772, issued on Sep 9, 2024. Check the license with the Montana 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790511772
Name
Viviana Fonseca Auch
Primary taxonomy
Physician Assistant 363A00000X
Practice location
501 Euclid Ave, Helena, MT 59601
Phone
(406) 449-5796
Enumerated
Sep 9, 2024
Record last updated
Sep 9, 2024
Medicare enrollment
Enrolled (PECOS I20241029004322); may accept 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 501 Euclid Ave

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

  1. Vincent Antonick, LACAddiction (Substance Use Disorder) Counselor1992470371
  2. Kessalyn Clark, LCSW, LACProfessional Counselor1871071639
  3. Katherine Finch, LACAddiction (Substance Use Disorder) Counselor1376255794
  4. Melanie Funke, CNPPsychiatric/Mental Health Nurse Practitioner1528672979
  5. Ben HornAddiction (Substance Use Disorder) Counselor1245679935
  6. Carol Josephson, LCSWClinical Social Worker1093122558

Verify Viviana Fonseca Auch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this professionCheck 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
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98% fewer Medicare Part D claims than the average physician assistant in 2024

14 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Viviana Auch14
  2. Specialty average830

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

  1. Helena Indian Alliance IncHelena, MT

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

Viviana Fonseca Auch among 698 physician assistant records in Montana

Viviana Fonseca Auch 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 2024, is newer than 91% of them.

  • NPI issued2024 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2024 · median 2016 among the 514 with a school on file
  • Record last updated2024 · 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).

49 physician assistant records list a practice address in Helena

They are 49 of the 1,591 NPPES records with a practice address in Helena, and 698 physician assistant records in Montana.

The 8 physician assistant records with the nearest ZIP codes

  1. Lura Brown, PA-CHelena, MT 596011073799755
  2. Ashley Bryson, PA-CHelena, MT 596011851628465
  3. Jeffrey Chandler, PA-CHelena, MT 596011891737649
  4. Trapper Hogberg, PA-CHelena, MT 596011689813008
  5. Jody Isbell, PA-CHelena, MT 596011205165248
  6. Lindsey Maierle, PA-CHelena, MT 596011902185200
  7. Rachel Mattern, PA-CHelena, MT 596011275539884
  8. Aaron Peters, PA-CHelena, MT 596011891941555

Common questions

What is Viviana Fonseca Auch's NPI number?

Viviana Fonseca Auch's National Provider Identifier (NPI) is 1790511772, issued on Sep 9, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Viviana Fonseca Auch located?

The NPPES record lists a practice address at 501 Euclid Ave, Helena, MT, 59601. Phone: (406) 449-5796. Providers update this record themselves, so call before visiting.

How can I verify Viviana Fonseca Auch's license?

Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Viviana Fonseca Auch prescribe under Medicare Part D?

In 2024, Viviana Fonseca Auch had 14 Medicare Part D claims; 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.