NPPES file of Aug 9, 2026

Nathaniel Mazza

Clinical Social Worker · Charlestown, RI

Nathaniel Mazza is a clinical social worker with a practice address in Charlestown, Rhode Island, and NPI 1366060097, issued on Jul 9, 2020. Check the license with the Rhode Island board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366060097
Name
Nathaniel Mazza
Primary taxonomy
Clinical Social Worker 1041C0700X
Practice location
4705 Old Post RD Unit A, Charlestown, RI 02813
Phone
(401) 346-7705
Enumerated
Jul 9, 2020
Record last updated
Jul 9, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220608000520); 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 4705 Old Post RD Unit A

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

  1. Jennifer Baerlocher, LMFTMarriage & Family Therapist1235325259
  2. Melissa Ballou, RNRegistered Nurse1548902141
  3. Alison Basile, LCDPAddiction (Substance Use Disorder) Counselor1689459331
  4. Jaime Bernard, LCDPAddiction (Substance Use Disorder) Counselor1770754830
  5. Stella Breytman, MSWClinical Social Worker1467977918
  6. Alice Cesana, MA, LMHCMental Health Counselor1750365896

Verify Nathaniel Mazza in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Rhode Island board licenses this professionCheck 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 Rhode Island 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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Bills Medicare through one group practice

  1. North Road Psychiatry LLCSouth Kingstown, RI

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

Nathaniel Mazza among 2,438 clinical social worker records in Rhode Island

Nathaniel Mazza is one of 2,438 clinical social worker records with a practice address in Rhode Island. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 67% of them.

  • NPI issued2020 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 24% of these records are
  • Graduated2020 · median 2011 among the 574 with a school on file
  • Record last updated2020 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 clinical social worker records list a practice address in Charlestown

They are 24 of the 116 NPPES records with a practice address in Charlestown, and 2,438 clinical social worker records in Rhode Island.

The 8 clinical social worker records with the nearest ZIP codes

  1. Marilyn Asher, LICSW, LCDP, CASCharlestown, RI 028131043255680
  2. Teresa Castagna, LCSWCharlestown, RI 028131407800840
  3. Kristine Dominique, LICSWCharlestown, RI 028131386706521
  4. Craig Gaspard, LICSWCharlestown, RI 028131366641417
  5. Rebecca Gessow, LICSWCharlestown, RI 028131255493904
  6. Diane Houston, LICSWCharlestown, RI 028131699824748
  7. Karen Macdonald, LCSWCharlestown, RI 028131700948080
  8. Kimberly Newbury, LICSWCharlestown, RI 028131740237080

Common questions

What is Nathaniel Mazza's NPI number?

Nathaniel Mazza's National Provider Identifier (NPI) is 1366060097, issued on Jul 9, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Mazza located?

The NPPES record lists a practice address at 4705 Old Post RD Unit A, Charlestown, RI, 02813. Phone: (401) 346-7705. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Mazza's license?

Search the Rhode Island board that licenses this profession; the NPPES record confirms identity 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.