NPPES file of Aug 9, 2026

Grace Mroz, NPP

Psychiatric/Mental Health Nurse Practitioner · Patchogue, NY

Grace Mroz, NPP is a psychiatric/mental health nurse practitioner with a practice address in Patchogue, New York, and NPI 1871676353, issued on Oct 20, 2006. Check the license (New York 400668, as entered in NPPES) with the New York 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
1871676353
Name
Grace Mroz
Credential
NPP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
400668 NY
Self-reported in NPPES; status is on the state search
Practice location
450 Waverly Ave, Patchogue, NY 11772
Phone
(631) 730-7503
Enumerated
Oct 20, 2006
Record last updated
Feb 21, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(631) 307-9422
Medicaid ID
00659412 NY
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 450 Waverly Ave

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

  1. Robert Bobrow, M.D.Family Medicine Physician1548204613
  2. Cathy Coleman, M.D.Pediatrics Physician1962444869
  3. Annette Cross, LMSWSocial Worker1285930347
  4. Christopher Daiuto, LMSWClinical Social Worker1437277803
  5. Roosje De Grauw-Mare, MDPediatrics Physician1861718751
  6. Amy Dittler, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1366761009

Verify Grace Mroz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 400668    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 York license search

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81% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

174 Medicare Part D claims for 47 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Grace Mroz174
  2. Specialty average906

Most prescribed

  1. Escitalopram Oxalate32 claims
  2. Lamotrigine17 claims
  3. Sertraline Hcl16 claims
  4. Venlafaxine Hcl Er13 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.

14 psychiatric/mental health nurse practitioner records list a practice address in Patchogue

They are 14 of the 987 NPPES records with a practice address in Patchogue, and 4,129 psychiatric/mental health nurse practitioner records in New York.

All 14 in Patchogue → All 4,129 in New York → Every provider in Patchogue →

Other psychiatric/mental health nurse practitioner records in New York

  1. Lori Aavik, DNPNew York, NY1770398802
  2. Jeanne Abatemarco, N.P.P., M.S., R,NNew York, NY1043754989
  3. Geraldine Abbatiello, PHD, GNP, PMHNPChappaqua, NY1235314352
  4. Romane Abbensetts, PMHNPCommack, NY1437616240
  5. Arias Abbruzzi Davis, DNP-BCNew York, NY1073294377
  6. Nadine Abdellatif, DNP, PMHNPOrchard Park, NY1225613615
  7. Nikesha AbdoolBrooklyn, NY1508358011
  8. Kemi Abdul, PSYCHIATRIC NPBrooklyn, NY1437318755
  9. Bernadette Abeel, NURSE PRACTITIONERAlbany, NY1710657986
  10. Robert Abel, NURSE PRACTITIONERNew York, NY1215184445

Common questions

What is Grace Mroz, NPP's NPI number?

Grace Mroz, NPP's National Provider Identifier (NPI) is 1871676353, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Grace Mroz, NPP located?

The NPPES record lists a practice address at 450 Waverly Ave, Patchogue, NY, 11772. Phone: (631) 730-7503. Providers update this record themselves, so call before visiting.

How can I verify Grace Mroz, NPP's license?

NPPES lists New York license number 400668, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Grace Mroz, NPP prescribe under Medicare Part D?

In 2024, Grace Mroz, NPP had 174 Medicare Part D claims for 47 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.

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.