Marie G. Johnston, R.N., L.A.D.C.
Addiction (Substance Use Disorder) Counselor · Waterbury, CT
Marie G. Johnston, R.N., L.A.D.C. is an addiction (substance use disorder) counselor with a practice address in Waterbury, Connecticut, and NPI 1235112137, issued on Nov 23, 2005. Check the license (Connecticut 000399, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marie G. Johnston
- Credential
- R.N., L.A.D.C.
- Primary taxonomy
- Addiction (Substance Use Disorder) Counselor 101YA0400X
- License numbers
- 000399 CT
E31451 CT
Self-reported in NPPES; status is on the state search - Practice location
- 88 Grandview Ave, Waterbury, CT 06708
- Phone
- (203) 573-7500
- Enumerated
- Nov 23, 2005
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest addiction (substance use disorder) counselor records → All 759 in Connecticut → Look up another NPI →
Also registered at 88 Grandview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Carroll, LPCMental Health Counselor1487624516
- Marianne Christiano, LCSWClinical Social Worker1952384893
- Thomas Czarkosky, LMFTMarriage & Family Therapist1174593297
- Ryan Doyle, D.O.Psychiatry Physician1285049742
- Laurie Duncan, A.P.R.N.Psychiatric/Mental Health Nurse Practitioner1912980145
- Tracy Follert, LCSWClinical Social Worker1245741701
Verify Marie G. Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 000399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $35.20
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 5 providers of this specialty with any payment received $145.69 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marie G. Johnston among 759 addiction (substance use disorder) counselor records in Connecticut
Marie G. Johnston, R.N., L.A.D.C. 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. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, over 99% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2026 · 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.
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
- Kristen Birmingham, LADCWaterbury, CT 067081699313593
- Mary Frigiani, R.N. CADCWaterbury, CT 067081790769081
- Carol Genova, RN CADCWaterbury, CT 067081124002977
- Harry Gerowe, MS,LADC,CCS,CCDPWaterbury, CT 067081265631923
- Robert GirardWaterbury, CT 067081619423977
- Cheryl Planten, LMFT,LADCWaterbury, CT 067081679558316
- Jason Schwarz, CAC, CADCWaterbury, CT 067081245567452
- Samuel Segal, LPC, LADCWaterbury, CT 067081881874881
Common questions
What is Marie G. Johnston, R.N., L.A.D.C.'s NPI number?
Marie G. Johnston, R.N., L.A.D.C.'s National Provider Identifier (NPI) is 1235112137, issued on Nov 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marie G. Johnston, R.N., L.A.D.C. located?
The NPPES record lists a practice address at 88 Grandview Ave, Waterbury, CT, 06708. Phone: (203) 573-7500. Providers update this record themselves, so call before visiting.
How can I verify Marie G. Johnston, R.N., L.A.D.C.'s license?
NPPES lists Connecticut license number 000399, as entered by the provider. 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. 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.