HEIDI HENDERSON SIEBERT MFT
NPI 1740455435
Marriage & Family Therapist in Southport, CT

Q: What is Heidi Siebert's NPI number?

The NPI number for Heidi Siebert is 1740455435. It was assigned to this individual provider in the NPPES registry on April 24, 2008.

Q: What is Heidi Siebert's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: Is Heidi Siebert enrolled in Medicare?

No. Heidi Siebert has opted out of Medicare through August 17, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Heidi Siebert was last updated on April 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 24, 2008Opted out of Medicare · through Aug 17, 2026

49 JOHN STREET, NEW LEARNING THERAPY CENTER, SOUTHPORT, CT 06890(203) 307-3030(203) 255-7486 Get Directions Write a Review

NPPES record last updated: April 24, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Heidi Henderson Siebert Mft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HEIDI HENDERSON SIEBERT MFT (NPI 1740455435) is an individual marriage & family therapist in Southport, Connecticut, licensed in Connecticut (001250) and active in the NPI registry since April 2008. She has opted out of Medicare through August 17, 2026.

NPPES Registry Identity

NPI1740455435

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameHEIDI HENDERSON SIEBERTCredential: MFT

Location Address49 JOHN STREET, NEW LEARNING THERAPY CENTERSouthport, CT 06890-1436

Mailing Address37 Senior PlFairfield, CT 06825-1344 · (203) 334-6905 · Fax (203) 255-7486

Phone(203) 307-3030

Fax(203) 255-7486

Sole ProprietorYes

Enumeration DateApril 24, 2008

✔ NPI 1740455435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CT · 001250

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

49 JOHN STREET, Southport, CT 06890

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Heidi Henderson Siebert Mft has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 17, 2024 through August 17, 2026.

Opt-Out Effective DateAugust 17, 2024

Opt-Out In Effect ThroughAugust 17, 2026Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. SHARON RENEE MCCORMICK LMFT

Marriage & Family Therapist

49 JOHN STREET, NEW LEARNING THERAPY CENTER
SOUTHPORT, CT 06890

Greater Bridgeport Planning Region (203) 307-3030

HELEN W. KELLY M.S.

Marriage & Family Therapist

49 JOHN STREET, NEW LEARNING THERAPY CENTER
SOUTHPORT, CT 06890

Greater Bridgeport Planning Region (203) 307-3030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Heidi Siebert's NPI number?

The NPI number for Heidi Siebert is 1740455435. It was assigned to this individual provider in the NPPES registry on April 24, 2008.

Where is Heidi Siebert located?

Heidi Siebert practices at 49 John Street New Learning Therapy Center, Southport, CT 06890. The listed phone number is (203) 307-3030.

What is Heidi Siebert's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Heidi Siebert enrolled in Medicare?

No. Heidi Siebert has opted out of Medicare through August 17, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Heidi Siebert was last updated on April 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.