Registry data as of Aug 27, 2026

Brian Ahlstrom, M.D.

Neurology Physician · Johnstown, PA

Brian Ahlstrom, M.D. is a neurology physician with a practice address in Johnstown, Pennsylvania, and NPI 1801899166, issued on May 31, 2005. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1801899166
Name
Brian Ahlstrom
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
Practice location
353 Market Street, Johnstown, PA 15901
Phone
(814) 539-9091
Enumerated
May 31, 2005
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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Verify Brian Ahlstrom in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)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
Open the Pennsylvania 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.

96% fewer Medicare Part D claims than the average neurology physician in 2024

59 Medicare Part D claims, against an average of 1,356 among the 13,714 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Brian Ahlstrom59
  2. Specialty average1,356

Most prescribed

  1. Lumigan11 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.

Neurology Physician providers in Pennsylvania

There are 999 neurology physician records in Pennsylvania.

Other neurology physician records in Pennsylvania

  1. Whitley Aamodt, M.D.Philadelphia, PA1598152944
  2. Brian Abaluck, MDMalvern, PA1952428070
  3. Rania Abou Elenein, MDHuntingdon Valley, PA1114156866
  4. Frederick Abraham, DOWest Reading, PA1851968382
  5. Mary AbramczukDanville, PA1861074163
  6. Daniel Ackerman, M.D.Bethlehem, PA1154642338
  7. Cathleen Adams, D.O.Hershey, PA1124253851
  8. Akintunde Adebowale, MDHershey, PA1053158204
  9. Philip Adelman, MDPaoli, PA1376594630
  10. Kayode Adunbarin, MDPhiladelphia, PA1508903212

Common questions

What is Brian Ahlstrom, M.D.'s NPI number?

Brian Ahlstrom, M.D.'s National Provider Identifier (NPI) is 1801899166, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian Ahlstrom, M.D. located?

The NPPES record lists a practice address at 353 Market Street, Johnstown, PA, 15901. Phone: (814) 539-9091. Providers update this record themselves, so call before visiting.

How can I verify Brian Ahlstrom, M.D.'s license?

Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian Ahlstrom, M.D. prescribe under Medicare Part D?

In 2024, Brian Ahlstrom, M.D. had 59 Medicare Part D claims; the average among neurology physician prescribers was 1,356. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.