NPPES file of Aug 9, 2026

David A. Mercado

Addiction (Substance Use Disorder) Counselor · Waterbury, CT

David A. Mercado is an addiction (substance use disorder) counselor with a practice address in Waterbury, Connecticut, and NPI 1326229857, issued on Nov 27, 2007. Check the license with the Connecticut 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
1326229857
Name
David A. Mercado
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
Practice location
56 Church St, Waterbury, CT 06702
Phone
(203) 755-1196
Enumerated
Nov 27, 2007
Record last updated
Nov 27, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
Download card Updates feed

8 nearest addiction (substance use disorder) counselor records → All 759 in Connecticut → Look up another NPI →

Also registered at 56 Church St

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

  1. Amanda AlvardoMental Health Counselor1154421311
  2. Margarita AlvarezSocial Worker1104967397
  3. Donald Bartlett, LPC, LADC, MHCMental Health Counselor1164446100
  4. Nadine BehmkeMarriage & Family Therapist1699866095
  5. Helen Bonano, BSWMental Health Counselor1114068681
  6. Karen BrousseauMental Health Counselor1528299591

Verify David A. Mercado in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut 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 Connecticut 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

David A. Mercado among 759 addiction (substance use disorder) counselor records in Connecticut

David A. Mercado is one of 759 addiction (substance use disorder) counselor records with a practice address in Connecticut. 6% 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 2007, is newer than 9% of them.

  • NPI issued2007 · 9% of these records are older, 79% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2007 · 62% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 addiction (substance use disorder) counselor records list a practice address in Waterbury

They are 53 of the 3,148 NPPES records with a practice address in Waterbury, and 759 addiction (substance use disorder) counselor records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 759 in Connecticut → Every provider in Waterbury → Addiction (Substance Use Disorder) Counselor nationwide →

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

  1. Mario Barbpza, CACWaterbury, CT 067021821119207
  2. William Colson, LADCWaterbury, CT 067021154466795
  3. Timothy CunninghamWaterbury, CT 067021922252352
  4. Vincent Delaney, CCDO,CCDPWaterbury, CT 067021467788844
  5. Doug Gruber, LADCWaterbury, CT 067021992076780
  6. Edgar Jimenez, CADCWaterbury, CT 067021205019569
  7. Jannet Jones, LADCWaterbury, CT 067021770813669
  8. Danielle Mastriano, MSW,BA,LMSW,LADCWaterbury, CT 067021346590601

Common questions

What is David A. Mercado's NPI number?

David A. Mercado's National Provider Identifier (NPI) is 1326229857, issued on Nov 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is David A. Mercado located?

The NPPES record lists a practice address at 56 Church St, Waterbury, CT, 06702. Phone: (203) 755-1196. Providers update this record themselves, so call before visiting.

How can I verify David A. Mercado's license?

Search the Connecticut 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.