Individual provider

Tamara Grant, LCSW

Clinical Social Worker

Tamara Grant, LCSW is a provider specialising in Clinical Social Worker in Hamden, CT, registered under NPI 1831863307. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 40 PUTNAM AVE # 6243, Hamden, CT 06517. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

40 PUTNAM AVE # 6243, Hamden, CT 06517 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
0904014404 VA Clinical Social Worker primary
011484 CT Clinical Social Worker
17501 SC Clinical Social Worker
SW23614 FL Clinical Social Worker
44SC06175500 NJ Clinical Social Worker

Licences are recorded in 5 states: VA, CT, SC, FL, NJ. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

Licensed in 5 states

This provider holds licences in 5 states: Connecticut, Florida, New Jersey, South Carolina and Virginia. The practice address on file is in Hamden, CT, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

CT Connecticut practice address
Licence
011484
Specialty
Clinical Social Worker
Verify with the CT board →
FL Florida
Licence
SW23614
Specialty
Clinical Social Worker
Verify with the FL board →
NJ New Jersey
Licence
44SC06175500
Specialty
Clinical Social Worker
Verify with the NJ board →
SC South Carolina
Licence
17501
Specialty
Clinical Social Worker
Verify with the SC board →
VA Virginia
Licence
0904014404
Specialty
Clinical Social Worker
Verify with the VA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Clinical covers

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
Behavioral Health & Social Service Providers Social Worker Clinical

All registered taxonomy codes

This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
1041C0700X Clinical Social Worker Clinical 0904014404 VA primary
1041C0700X Clinical Social Worker Clinical 011484 CT
1041C0700X Clinical Social Worker Clinical 17501 SC
1041C0700X Clinical Social Worker Clinical SW23614 FL
1041C0700X Clinical Social Worker Clinical 44SC06175500 NJ

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1831863307 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 6, 2021
Last updatedMar 11, 2026
StatusActive
Sole proprietorYes
CredentialLCSW
Practice address 40 PUTNAM AVE # 6243
Hamden, CT 06517
(203) 606-8415
Other identifiers 004039244 · Medicaid (CT)
This record was updated on Mar 11, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1831863307 passes the NPI check digit test The final digit 7 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 8 3 1 8 6 3 3 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 6 1 7 6 6 3 0

Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1831863307?
NPI 1831863307 is the National Provider Identifier assigned to Tamara Grant, LCSW in Hamden, CT. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Clinical cover?
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of…
How do I contact Tamara Grant, LCSW?
The phone number on file with NPPES is (203) 606-8415, last updated Mar 11, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1831863307 a valid number?
Yes. 1831863307 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.