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DENISE E GROOTHUIS
NPI 1114419256
Dietitian, Registered in Stamford, CT

Active since June 05, 2018
141 FRANKLIN ST, STAMFORD, CT 06901(203) 969-0802 Get Directions Write a Review

NPPES record last updated: June 5, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Denise E Groothuis NPPES

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

DENISE E GROOTHUIS (NPI 1114419256) is an individual dietitian, registered in Stamford, Connecticut, licensed in New York (007407) and active in the NPI registry since June 2018.

NPPES Registry Identity

NPI1114419256
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameDENISE E GROOTHUIS
Location Address141 FRANKLIN STStamford, CT 06901-1014
Mailing Address52 Stonewall CirWest Harrison, NY 10604-1117 · (917) 439-1209
Phone(203) 969-0802
Sole ProprietorYes
Enumeration DateJune 5, 2018
✔ NPI 1114419256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in NY · 007407
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
141 FRANKLIN ST, Stamford, CT 06901
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, BridgeSpan Health Company, Regence BlueCross BlueShield of Oregon.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Denise E Groothuis is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Denise Groothuis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Community Health Center Inc
24 mi
Federally Qualified Health Center (FQHC)
41 NEW ST
Danbury, CT 06810
  • Reassigned Medicare billing, Connecticut enrollment
  • 390 clinicians in this Medicare group
NPI 1003332446 (203) 796-1661

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

Other Providers at the Same Location NPPES 20

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

DR. ROBERT J. HERMAN D.D.S
Dentist (General Practice)
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802
MS. GINELLE L CARSILLO LPC
Counselor (Professional)
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802
SUSAN BLANCHARD RDH, RN
Dental Hygienist
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802
HEATHER K MAZARAKOS LCSW
Counselor (Addiction (Substance Use Disorder))
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 602-4441
LAXMI GURUNG RDH
Dental Hygienist
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802
DR. TICHIANAA ARMAH MD
Psychiatry & Neurology (Psychiatry)
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802
BRADLEY J ALTMAN
Marriage & Family Therapist
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 352-1800
NATASHA PAULA FERGUSON M.D.
Family Medicine
141 FRANKLIN ST
STAMFORD, CT 06901
Western Connecticut Planning Region (203) 969-0802

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 Denise Groothuis's NPI number?

The NPI number for Denise Groothuis is 1114419256. It was assigned to this individual provider in the NPPES registry on June 5, 2018.

Where is Denise Groothuis located?

Denise Groothuis practices at 141 Franklin St, Stamford, CT 06901. The listed phone number is (203) 969-0802.

What is Denise Groothuis's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Denise Groothuis enrolled in Medicare?

Yes. Denise Groothuis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Denise Groothuis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Groothuis reassigns Medicare benefits to Community Health Center Inc (Danbury, CT). The 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 Denise Groothuis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Denise Groothuis accept?

Health plans from Blue Cross and Blue Shield of Montana, BridgeSpan Health Company and Regence BlueCross BlueShield of Oregon list Denise Groothuis 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 Denise Groothuis was last updated on June 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.