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Deborah Fixell , BCBA, LBA

Behavior Analyst β€’ Old Greenwich, CT

Active NPI 1730441148 Individual Practitioner Female Practitioner
Practice location in NPPES

1445 E Putnam Ave
Old Greenwich, CT 068701379

Call 9175097412 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1445 E Putnam Ave

Old Greenwich, CT 068701379

Telephone 9175097412
Organization at the Same NPPES Address or Phone
Elite Health Services Facility NPI 1336475664

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

NPI first issued

2012

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Old Greenwich and Connecticut

6 active clinicians are listed under Behavior Analyst with a practice address in Old Greenwich, CT (1,359 in Connecticut).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-06-17
Behavior Analyst Primary Specialty

NUCC Taxonomy Code: 103K00000X

License # reported to NPPES NY 000512-1

A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

Social Worker

NUCC Taxonomy Code: 104100000X

License # reported to NPPES CT 1036

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

Specialist

NUCC Taxonomy Code: 174400000X

License # reported to NPPES NY 456820257

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Connecticut Department of Public Health Verification.
Look Up on State Board Site

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

13 Historical Events
πŸ“
Updated Practice Location June 17, 2026

Registered at 1445 E PUTNAM AVE, OLD GREENWICH, CT 068701379 (Tel: 9175097412)

πŸ“
Updated Business Mailing Address June 17, 2026

Registered at 1445 E PUTNAM AVE, OLD GREENWICH, CT 068701379 (Tel: 9175097412)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 17, 2026

Social Worker (license number reported to NPPES: CT 1036)

πŸ“
Updated Practice Location July 29, 2020

Registered at 163 TOWN HILL RD, WARREN, CT 067541809 (Tel: 9175097412)

πŸ“
Updated Business Mailing Address July 29, 2020

Registered at 163 TOWN HILL RD, WARREN, CT 067541809 (Tel: 9175097412)

πŸ‘€
Provider Name / Credentials Updated July 29, 2020

Recorded as DEBORAH FIXELL, BCBA, LBA

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 29, 2020

Behavior Analyst (license number reported to NPPES: NY 000512-1)

βœ…
NPI Profile Active June 12, 2012

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) June 12, 2012

Registered at 292 MADISON AVE, 2ND FLOOR, NEW YORK, NY 100176307 (Tel: 6462918391)

πŸ“
Business Mailing Address (Initial Record) June 12, 2012

Registered at 260 E 78TH ST, APT 11, NEW YORK, NY 100752037 (Tel: 9175097412)

πŸ‘€
Provider Name / Credentials (Initial Record) June 12, 2012

Recorded as DEBORAH LEWIS, LMSW

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 12, 2012

Specialist (license number reported to NPPES: NY 456820257)

🟒
Initial NPI Registration & Enumeration June 12, 2012

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1730441148
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 12, 2012
Last Update: June 17, 2026
Sole Proprietor: Yes

Mailing Address

1445 E Putnam Ave

Old Greenwich, CT 068701379

Phone: 9175097412

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.