NPPES file of Aug 9, 2026

Kathryn Rose Koestner, NP

Gerontology Nurse Practitioner · Boston, MA

Kathryn Rose Koestner, NP is a gerontology nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1477106086, issued on Jul 23, 2019. Check the license (Massachusetts RN2292372, as entered in NPPES) with the Massachusetts 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
1477106086
Name
Kathryn Rose Koestner
Credential
NP
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
RN2292372 MA
Self-reported in NPPES; status is on the state search
Practice location
725 Albany Street, Suite 3A, Boston, MA 02118
Phone
(617) 414-4861
Enumerated
Jul 23, 2019
Record last updated
Apr 16, 2024
Fax
(617) 414-3617
Medicaid ID
110156088A MA
Medicare enrollment
Enrolled (PECOS I20191125002240); 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 725 Albany Street, Suite 3A

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

  1. Alicia Hanau, PA-CPhysician Assistant1790336659
  2. Aliza Holstein, PA-CPhysician Assistant1396417663
  3. Megan Janeway, M.D.Surgical Critical Care Physician1255719613
  4. Danby Kang, M.D.Surgical Critical Care Physician1528449857
  5. Katherine Lowry, PA-CPhysician Assistant1609395565
  6. Toni Magee, PA-CPhysician Assistant1609487115

Verify Kathryn Rose Koestner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2292372    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 Massachusetts 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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78% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

298 Medicare Part D claims for 89 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Kathryn Koestner298
  2. Specialty average1,369

Most prescribed

  1. Sulfamethoxazole-Trimethoprim39 claims
  2. Valganciclovir Hcl31 claims
  3. Famotidine25 claims
  4. Prednisone19 claims
  5. Omeprazole12 claims
  6. Oxycodone Hcl12 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.

Bills Medicare through one group practice

  1. Massachusetts General Physicians Organization IncBoston, MA

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

Gerontology Nurse Practitioner providers in Massachusetts

There are 379 gerontology nurse practitioner records in Massachusetts.

All 379 in Massachusetts → Every provider in Boston →

Other gerontology nurse practitioner records in Massachusetts

  1. Julie Abert, NPFeeding Hills, MA1912981564
  2. Francisca Adams, MSN, APRN, BCWaltham, MA1477603819
  3. Jeanne AdrienDanvers, MA1750014254
  4. Steven Afrow, NPBoston, MA1871946152
  5. Oladoyin AlabiAshland, MA1225968712
  6. Nicole AlabreWinchester, MA1104469196
  7. Nadege Alce, RNRockland, MA1528644390
  8. Ugne Aleknaite, NPBoston, MA1861934648
  9. Christine Anderson, N.P.Lowell, MA1285750463
  10. Marie Anderson, GNPHaverhill, MA1124157771

Common questions

What is Kathryn Rose Koestner, NP's NPI number?

Kathryn Rose Koestner, NP's National Provider Identifier (NPI) is 1477106086, issued on Jul 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Rose Koestner, NP located?

The NPPES record lists a practice address at 725 Albany Street, Suite 3A, Boston, MA, 02118. Phone: (617) 414-4861. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Rose Koestner, NP's license?

NPPES lists Massachusetts license number RN2292372, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Kathryn Rose Koestner, NP prescribe under Medicare Part D?

In 2024, Kathryn Rose Koestner, NP had 298 Medicare Part D claims for 89 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.