NPPES file of Aug 9, 2026

Susan Kostrzewski, APRN

Psychiatric/Mental Health Nurse Practitioner · Concord, NH

Susan Kostrzewski, APRN is a psychiatric/mental health nurse practitioner with a practice address in Concord, New Hampshire, and NPI 1770058273, issued on Oct 10, 2018. Check the license (New Hampshire 068472-23, as entered in NPPES) with the New Hampshire 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
1770058273
Name
Susan Kostrzewski
Credential
APRN
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
068472-23 NH
Self-reported in NPPES; status is on the state search
Practice location
105 Pleasant St, Concord, NH 03301
Phone
(603) 271-7936
Enumerated
Oct 10, 2018
Record last updated
Oct 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210330000462); 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 105 Pleasant St

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

  1. Douglas Laidlaw, APRNFamily Nurse Practitioner1437552965
  2. Jennifer Mayer Cox, PHDClinical Psychologist1053043182
  3. Susan McGurk, PH.D.Clinical Neuropsychologist1164730420
  4. Melanie Rodriguez, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1962101790

Verify Susan Kostrzewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 068472-23
    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 New Hampshire license search

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83% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

151 Medicare Part D claims for 12 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Susan Kostrzewski151
  2. Specialty average906

Most prescribed

  1. Gabapentin17 claims
  2. Atorvastatin Calcium13 claims
  3. Amlodipine Besylate11 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. State OF New HampshireConcord, NH

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

Susan Kostrzewski among 435 psychiatric/mental health nurse practitioner records in New Hampshire

Susan Kostrzewski, APRN is one of 435 psychiatric/mental health nurse practitioner records with a practice address in New Hampshire. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 53% of them.

  • NPI issued2018 · 53% of these records are older, 43% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2013 · median 2019 among the 262 with a school on file
  • Record last updated2018 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

57 psychiatric/mental health nurse practitioner records list a practice address in Concord

They are 57 of the 3,103 NPPES records with a practice address in Concord, and 435 psychiatric/mental health nurse practitioner records in New Hampshire.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Steve Arvin, NPConcord, NH 033011306906417
  2. Emily Bryant, ARNPConcord, NH 033011073699161
  3. Elizabeth Carson-Fitzgerald, ARNPConcord, NH 033011538231030
  4. Nancy Clark, APRNConcord, NH 033011437132941
  5. Terry Hilger, PSYMH NPCConcord, NH 033011639109747
  6. Susan Kelly, APRNConcord, NH 033011659368595
  7. Elizabeth Moulton, PSYDConcord, NH 033011841268919
  8. Patricia Orzano, APRNConcord, NH 033011225003908

Common questions

What is Susan Kostrzewski, APRN's NPI number?

Susan Kostrzewski, APRN's National Provider Identifier (NPI) is 1770058273, issued on Oct 10, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Susan Kostrzewski, APRN located?

The NPPES record lists a practice address at 105 Pleasant St, Concord, NH, 03301. Phone: (603) 271-7936. Providers update this record themselves, so call before visiting.

How can I verify Susan Kostrzewski, APRN's license?

NPPES lists New Hampshire license number 068472-23, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Susan Kostrzewski, APRN prescribe under Medicare Part D?

In 2024, Susan Kostrzewski, APRN had 151 Medicare Part D claims for 12 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.