Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HEALTH CARE ADVOCATES INTERNATIONAL, INC.
NPI 1003353442
Internal Medicine in Stratford, CT

Active since January 24, 2017CLIA 07D2341677 · Waiver
2595 MAIN ST, STRATFORD, CT 06615(203) 345-0404(203) 908-4110 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 27, 2026, Oct 6, 2025, Feb 20, 2025 and 2 more (5 updates tracked since 2017).

About Health Care Advocates International, Inc. NPPES

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

HEALTH CARE ADVOCATES INTERNATIONAL, INC. (NPI 1003353442), doing business as Gary Blick Md, is a healthcare organization registered as an internal medicine in Stratford, Connecticut and active in the NPI registry since January 2017. The organization holds a CLIA Waiver certificate valid through April 6, 2028 and lists Elysia Marie Cerreta-dial, Ao, as its authorized official.

NPPES Registry Identity

NPI1003353442
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHEALTH CARE ADVOCATES INTERNATIONAL, INC.
Location Address2595 MAIN STStratford, CT 06615-5855
Mailing Address2595 Main StStratford, CT 06615-5855 · (203) 345-0404 · Fax (203) 908-4110
Fax(203) 908-4110
Organization SubpartNo
Authorized OfficialElysia Marie Cerreta-dialAo · (203) 345-0404
Enumeration DateJanuary 24, 2017
Last NPPES UpdateOctober 19, 20265 updates tracked since enumeration
NPPES CertifiedOctober 19, 2026
✔ NPI 1003353442 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 027524
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 027524 (CT)
2595 MAIN ST, Stratford, CT 06615

Other Names 2

Doing Business AsGary Blick Md
Former Legal Business NameHealth Care Advocates International, Llc

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Health Care Advocates International, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Health Care Advocates International, Inc., which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Nurse Practitioner
NPI 1639694441
2595 MAIN ST
Stratford, CT 06615
(203) 345-0404
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1356116057
2595 MAIN ST
Stratford, CT 06615
(203) 345-0404
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 07D2341677

Health Care Advocates International, Inc · Stratford, CT
Active · expires Apr 6, 2028
CLIA Number07D2341677
Laboratory TypePhysician Office
Certificate Effective DateApril 7, 2026
Certificate Expiration DateApril 6, 2028
Laboratory DirectorElysia M. Cerreta-Dial
Laboratory Phone(203) 345-0404
Laboratory LocationHealth Care Advocates International, Inc2595 Main St, Stratford, CT 06615
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Health Care Advocates International, Inc.'s NPI number?

The NPI number for Health Care Advocates International, Inc. is 1003353442. It was assigned to this organization in the NPPES registry on January 24, 2017. The provider is doing business as Gary Blick MD. The provider was formerly known as Health Care Advocates International, LLC.

Where is Health Care Advocates International, Inc. located?

Health Care Advocates International, Inc. is located at 2595 Main St, Stratford, CT 06615. The listed phone number is (203) 345-0404.

What is Health Care Advocates International, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Health Care Advocates International, Inc. enrolled in Medicare?

Yes. Health Care Advocates International, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Health Care Advocates International, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Nurse Practitioner, reassign their Medicare billing to Health Care Advocates International, Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Health Care Advocates International, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 07D2341677) is associated with this NPI, valid through April 6, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Health Care Advocates International, Inc. accept?

Health plans from Anthem Blue Cross and Blue Shield list Health Care Advocates International, Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Health Care Advocates International, Inc. was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.