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DARIEN SIGNATURE HEALTH, INC.
NPI 1851827000
Internal Medicine in Darien, CT

Active since May 10, 2017CLIA 07D2129511 · Waiver
53 OLD KINGS HWY N, SUITE 205, DARIEN, CT 06820(203) 918-0481 Get Directions Write a Review

NPPES record last updated: May 10, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Darien Signature Health, Inc. NPPES

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

DARIEN SIGNATURE HEALTH, INC. (NPI 1851827000) is a healthcare organization registered as an internal medicine in Darien, Connecticut and active in the NPI registry since May 2017. The organization holds a CLIA Waiver certificate valid through April 19, 2027 and lists Amanda Collins-baine, President, as its authorized official.

NPPES Registry Identity

NPI1851827000
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDARIEN SIGNATURE HEALTH, INC.
Location Address53 OLD KINGS HWY N, SUITE 205Darien, CT 06820-4735
Mailing Address53 Old Kings Highway North, Suite 205Darien, CT 08820 · (203) 918-0481
Phone(203) 918-0481
Organization SubpartNo
Authorized OfficialAmanda Collins-bainePresident · (203) 918-0481
Enumeration DateMay 10, 2017
✔ NPI 1851827000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 039661
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.
53 OLD KINGS HWY N, Darien, CT 06820
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Darien Signature Health, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Darien Signature Health, Inc., which bills Medicare for the services they deliver. Of these, 3 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Amanda Collins-Baine, M.D.
Internal Medicine
NPI 1154340040
53 OLD KINGS HWY N STE 205
Darien, CT 06820
(203) 286-5604
✔ PECOS✔ Accepts Medicare0.6 mi
Shira Vadel, MD
Internal Medicine
NPI 1336235597
51 SCHUYLER AVE
Stamford, CT 06902
(203) 327-1187
✔ PECOS✔ Accepts Medicare4.2 mi
Jenifer Drummond, M.D.
Internal Medicine
NPI 1548425085
30 SHELBURNE RD STAMFORD HOSPITAL
Stamford, CT 06902
(203) 276-7298
✔ PECOS✔ Accepts Medicare4.4 mi

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 07D2129511

Darien Signature Health, Inc · Darien, CT
Active · expires Apr 19, 2027
CLIA Number07D2129511
Laboratory TypePhysician Office
Certificate Effective DateApril 20, 2025
Certificate Expiration DateApril 19, 2027
Laboratory DirectorAmanda Collins-Baine
Laboratory Phone(203) 918-0481
Laboratory LocationDarien Signature Health, Inc53 Old Kings Highway North Suite 205, Darien, CT 06820
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 Darien Signature Health, Inc.'s NPI number?

The NPI number for Darien Signature Health, Inc. is 1851827000. It was assigned to this organization in the NPPES registry on May 10, 2017.

Where is Darien Signature Health, Inc. located?

Darien Signature Health, Inc. is located at 53 Old Kings Hwy N Suite 205, Darien, CT 06820. The listed phone number is (203) 918-0481.

What is Darien Signature Health, Inc.'s specialty?

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

Is Darien Signature Health, Inc. enrolled in Medicare?

Yes. Darien Signature Health, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Darien Signature Health, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Internal Medicine, reassign their Medicare billing to Darien Signature Health, 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, 3 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Darien Signature Health, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 07D2129511) is associated with this NPI, valid through April 19, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Darien Signature Health, Inc. was last updated on May 10, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.