NPPES file of Aug 9, 2026

Jacob R. Williams, PA

Physician Assistant · Helena, MT

Jacob R. Williams, PA is a physician assistant with a practice address in Helena, Montana, and NPI 1174859540, issued on Oct 20, 2009. 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
1174859540
Name
Jacob R. Williams
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
Practice location
2475 E Broadway St, Helena, MT 59601
Phone
(406) 442-2480
Enumerated
Oct 20, 2009
Record last updated
Oct 20, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2475 E Broadway St

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

  1. Brett Amestoy, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1104403369
  2. David Anderson, CRNACertified Registered Nurse Anesthetist1396761086
  3. Anne Anglim, M.D.Hospitalist Physician1487680534
  4. Kaylee AshePharmacist1598696973
  5. Shayla Barraclough, PHARMDPharmacist1689332538
  6. Maryann Beach, MMS, PA-CPhysician Assistant1083257489

Verify Jacob R. Williams 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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63% fewer Medicare Part D claims than the average physician assistant in 2024

310 Medicare Part D claims for 224 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 76 claims were for opioids.

  1. Jacob Williams310
  2. Specialty average830

Most prescribed

  1. Hydrocodone-Acetaminophen47 claims
  2. Cefuroxime26 claims
  3. Cephalexin24 claims
  4. Ondansetron Odt24 claims
  5. Prednisone16 claims
  6. Oxycodone-Acetaminophen13 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.

Jacob R. Williams among 698 physician assistant records in Montana

Jacob R. Williams, PA 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 2009, is newer than 31% of them.

  • NPI issued2009 · 31% of these records are older, 66% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2009 · 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 Jacob R. Williams, PA's NPI number?

Jacob R. Williams, PA's National Provider Identifier (NPI) is 1174859540, issued on Oct 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jacob R. Williams, PA located?

The NPPES record lists a practice address at 2475 E Broadway St, Helena, MT, 59601. Phone: (406) 442-2480. Providers update this record themselves, so call before visiting.

How can I verify Jacob R. Williams, PA's license?

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

How much does Jacob R. Williams, PA prescribe under Medicare Part D?

In 2024, Jacob R. Williams, PA had 310 Medicare Part D claims for 224 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.