NPPES file of Aug 9, 2026

Peggy Suet Ching Szeto, CNP, LICSW

Psychiatric/Mental Health Nurse Practitioner · Boston, MA

Peggy Suet Ching Szeto, CNP, LICSW is a psychiatric/mental health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1568621316, issued on Jun 6, 2008. Check the license (Massachusetts RN2340403, 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
1568621316
Name
Peggy Suet Ching Szeto
Credential
CNP, LICSW
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
RN2340403 MA
116069 MA
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-1755
Enumerated
Jun 6, 2008
Record last updated
Aug 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(617) 636-4852
Medicare enrollment
Enrolled (PECOS I20220329000483); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 800 Washington St

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

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Peggy Suet Ching Szeto 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 RN2340403
    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

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32% more Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

1,199 Medicare Part D claims for 130 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Peggy Szeto1,199
  2. Specialty average906

Most prescribed

  1. Clonazepam153 claims
  2. Lorazepam106 claims
  3. Mirtazapine67 claims
  4. Risperidone65 claims
  5. Olanzapine61 claims
  6. Fluoxetine Hcl57 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: $136.14

1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peggy Szeto$136.14
  2. Specialty average$1,027.77

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

Bills Medicare through one group practice

  1. Eliot Community Human ServicesConcord, MA

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

Peggy Suet Ching Szeto among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts

Peggy Suet Ching Szeto, CNP, LICSW is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 9% of them.

  • NPI issued2008 · 9% of these records are older, 89% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2021 among the 1,309 with a school on file
  • Record last updated2021 · 23% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in Massachusetts

There are 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.

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

  1. Kristen Cahill, APRNBoston, MA 021111003027574
  2. Jennifer Ingham, PMHNPBoston, MA 021111336859552
  3. Tristan Isacksen, NPBoston, MA 021111376419283
  4. Kathryn Kelley, LMHC, PMHNP-BCBoston, MA 021111992186779
  5. Yaqi LuBoston, MA 021111851196331
  6. Melissa PaskowskiBoston, MA 021111720809445
  7. Marybeth Zambella, APRNBoston, MA 021111528397908
  8. Stephanie Etienne, PMHNP-BCBoston, MA 021101447950092

Common questions

What is Peggy Suet Ching Szeto, CNP, LICSW's NPI number?

Peggy Suet Ching Szeto, CNP, LICSW's National Provider Identifier (NPI) is 1568621316, issued on Jun 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Peggy Suet Ching Szeto, CNP, LICSW located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-1755. Providers update this record themselves, so call before visiting.

How can I verify Peggy Suet Ching Szeto, CNP, LICSW's license?

NPPES lists Massachusetts license number RN2340403, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Peggy Suet Ching Szeto, CNP, LICSW prescribe under Medicare Part D?

In 2024, Peggy Suet Ching Szeto, CNP, LICSW had 1,199 Medicare Part D claims for 130 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.