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GREENWICH PURE MEDICAL, LLC
NPI 1871837971
Internal Medicine in Greenwich, CT

Active since November 15, 2012CLIA 07D2033285 · Waiver
15 VALLEY DR, GREENWICH, CT 06831(203) 869-2800(203) 869-2803 Get Directions Write a Review

NPPES record last updated: June 7, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Greenwich Pure Medical, Llc NPPES

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

GREENWICH PURE MEDICAL, LLC (NPI 1871837971) is a healthcare organization registered as an internal medicine in Greenwich, Connecticut and active in the NPI registry since November 2012. The organization holds a CLIA Waiver certificate valid through November 28, 2027 and lists Sarah Mildred Gamble, Owner, as its authorized official.

NPPES Registry Identity

NPI1871837971
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGREENWICH PURE MEDICAL, LLC
Location Address15 VALLEY DRGreenwich, CT 06831-5205
Mailing Address15 Valley DrGreenwich, CT 06831-5205 · (203) 869-2800 · Fax (203) 869-2803
Phone(203) 869-2800
Fax(203) 869-2803
Organization SubpartNo
Authorized OfficialSarah Mildred GambleOwner · (203) 278-2800
Enumeration DateNovember 15, 2012
Last NPPES UpdateJune 7, 2023
NPPES CertifiedJune 7, 2023
✔ NPI 1871837971 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 · 045358
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.
15 VALLEY DR, Greenwich, CT 06831
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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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)

Greenwich Pure Medical, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Greenwich Pure Medical, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sarah Gamble, DO
Internal Medicine
NPI 1265649073
15 VALLEY DR
Greenwich, CT 06831
(203) 869-2800
✔ PECOS✔ Accepts MedicareSame 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 07D2033285

Greenwich Pure Medical, LLC · Greenwich, CT
Active · expires Nov 28, 2027
CLIA Number07D2033285
Laboratory TypePhysician Office
Certificate Effective DateNovember 29, 2025
Certificate Expiration DateNovember 28, 2027
Laboratory DirectorSarah M. Gamble
Laboratory Phone(203) 869-2800
Laboratory LocationGreenwich Pure Medical, LLC15 Valley Rd, Greenwich, CT 06831
CLIA data matches this NPI record on: 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 Greenwich Pure Medical, LLC's NPI number?

The NPI number for Greenwich Pure Medical, LLC is 1871837971. It was assigned to this organization in the NPPES registry on November 15, 2012.

Where is Greenwich Pure Medical, LLC located?

Greenwich Pure Medical, LLC is located at 15 Valley Dr, Greenwich, CT 06831. The listed phone number is (203) 869-2800.

What is Greenwich Pure Medical, LLC's specialty?

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

Is Greenwich Pure Medical, LLC enrolled in Medicare?

Yes. Greenwich Pure Medical, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Greenwich Pure Medical, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Greenwich Pure Medical, LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Greenwich Pure Medical, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 07D2033285) is associated with this NPI, valid through November 28, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Greenwich Pure Medical, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Greenwich Pure Medical, LLC 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 Greenwich Pure Medical, LLC was last updated on June 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.