Registry data as of Aug 27, 2026

Katherine Borst, M.D.

Internal Medicine Physician · Malvern, PA

Katherine Borst, M.D. is an internal medicine physician with a practice address in Malvern, Pennsylvania, and NPI 1225486319, issued on May 30, 2016. Check the license (Pennsylvania MD470755, as entered in NPPES) 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
1225486319
Name
Katherine Borst
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD470755 PA
MT211611 PA
Self-reported in NPPES; status is on the state search
Practice location
414 Paoli Pike, Malvern, PA 19355
Phone
(484) 596-5254
Enumerated
May 30, 2016
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.
Download card Updates feed

Also registered at 414 Paoli Pike

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

  1. Ashley AltamuroOccupational Therapist1346654183
  2. Janet Belitsky, PHDClinical Psychologist1932207982
  3. Cris Chambers, PSYDClinical Psychologist1275750788
  4. Jessica Connell, CRNPRegistered Nurse1922475912
  5. Sharada Damaraju, PSY DClinical Psychologist1942383047
  6. Lester Dewis, MDPhysical Medicine & Rehabilitation Physician1316974777

Verify Katherine Borst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD470755
    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.

97% fewer Medicare Part D claims than the average internal medicine physician in 2024

87 Medicare Part D claims, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.

  1. Katherine Borst87
  2. Specialty average2,785

Most prescribed

  1. Eliquis16 claims
  2. Mirtazapine13 claims
  3. Metoprolol Succinate11 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.

Industry payments in 2024: $13.35

1 payment, mostly food and beverage; the largest payer was C. R. Bard, Inc. & Subsidiaries. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Borst$13.35
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Rehabilitation Associates OF The Main Line, P.C.Malvern, PA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

11 internal medicine physician records list a Malvern practice address

They are 11 of the 539 NPPES records with a Malvern practice address, and 8,636 internal medicine physician records in Pennsylvania.

Other internal medicine physician records in Pennsylvania

  1. Erin Aakhus, M.D.Philadelphia, PA1255652087
  2. Muhammad Aamir, MDAllentown, PA1477039147
  3. Saira Aamir, MDYork, PA1184515686
  4. John Aaron, MDWest Grove, PA1427094531
  5. Todd Aaron, MDPhiladelphia, PA1457350522
  6. Cybele Abad, M.D.Pittsburgh, PA1619900453
  7. Mario Abad, MDDuncannon, PA1710022975
  8. Joseph Abalos, M.D.Seneca, PA1215128434
  9. Ali Abbas, MDYork, PA1023343779
  10. Huda Abbas, MDDoylestown, PA1316187024

Common questions

What is Katherine Borst, M.D.'s NPI number?

Katherine Borst, M.D.'s National Provider Identifier (NPI) is 1225486319, issued on May 30, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Borst, M.D. located?

The NPPES record lists a practice address at 414 Paoli Pike, Malvern, PA, 19355. Phone: (484) 596-5254. Providers update this record themselves, so call before visiting.

How can I verify Katherine Borst, M.D.'s license?

NPPES lists Pennsylvania license number MD470755, as entered by the provider. 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 Katherine Borst, M.D. prescribe under Medicare Part D?

In 2024, Katherine Borst, M.D. had 87 Medicare Part D claims; the average among internal medicine physician prescribers was 2,785. 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.