NPPES file of Aug 9, 2026

Diane Marie Brewer, CASAC

Addiction (Substance Use Disorder) Counselor · Riverhead, NY

Diane Marie Brewer, CASAC is an addiction (substance use disorder) counselor with a practice address in Riverhead, New York, and NPI 1730602673, issued on Jul 24, 2017. Check the license (New York 20093, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1730602673
Name
Diane Marie Brewer
Credential
CASAC
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
20093 NY
Self-reported in NPPES; status is on the state search
Practice location
212 W Main St, Riverhead, NY 11901
Phone
(631) 369-7800
Enumerated
Jul 24, 2017
Record last updated
Jul 24, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(631) 574-8216
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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8 nearest addiction (substance use disorder) counselor records → All 5,180 in New York → Look up another NPI →

Also registered at 212 W Main St

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

  1. Kathleen Appleby, RNRegistered Nurse1255801510
  2. Kevin Cantone, RNRegistered Nurse1972114262
  3. Gina D'Ulisse, CASACCase Manager/Care Coordinator1891118485
  4. Lynn DorisSocial Worker1437301793
  5. Jo-Ann EschmannGeneral Practice Registered Nurse1861075681
  6. Paula Evans, LMSWClinical Social Worker1801187497

Verify Diane Marie Brewer 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 20093    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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Diane Marie Brewer among 5,180 addiction (substance use disorder) counselor records in New York

Diane Marie Brewer, CASAC is one of 5,180 addiction (substance use disorder) counselor records with a practice address in New York. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 49% of them.

  • NPI issued2017 · 49% of these records are older, 46% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2017 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Counselor providers in New York

There are 5,180 addiction (substance use disorder) counselor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,180 in New York → Every provider in Riverhead → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Timothy Griffin, CASAC 2Riverhead, NY 119011942981790
  2. Ryan Henaghan, CASACRiverhead, NY 119011336732304
  3. Brianna KnightRiverhead, NY 119011265312912
  4. Cynthia MilaniRiverhead, NY 119011346663945
  5. Celeste Newby, CASAC-TRiverhead, NY 119011821218017
  6. Pennie Ortiz, CASACRiverhead, NY 119011609237189
  7. Christopher Ronan, CASACRiverhead, NY 119011609645852
  8. Salvatore Sexton, CASAC ADV COUNSELORRiverhead, NY 119011558978585

Common questions

What is Diane Marie Brewer, CASAC's NPI number?

Diane Marie Brewer, CASAC's National Provider Identifier (NPI) is 1730602673, issued on Jul 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Diane Marie Brewer, CASAC located?

The NPPES record lists a practice address at 212 W Main St, Riverhead, NY, 11901. Phone: (631) 369-7800. Providers update this record themselves, so call before visiting.

How can I verify Diane Marie Brewer, CASAC's license?

NPPES lists New York license number 20093, as entered by the provider. Search the New York 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. 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.