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MERILYN S VARGHESE THENGONE M.D.
NPI 1619357001
Internal Medicine - Cardiovascular Disease in New Haven, CT

Active since June 01, 2015PECOS Enrolled
20 YORK ST, NEW HAVEN, CT 06510(203) 688-4748(203) 688-4740 Get Directions Write a Review

NPPES record last updated: June 1, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 1, 2023, Nov 30, 2020, Jun 27, 2018 (3 updates tracked since 2018).

About Merilyn S Varghese Thengone M.d. NPPES

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

MERILYN S VARGHESE THENGONE M.D. (NPI 1619357001) is an individual cardiovascular disease provider in New Haven, Connecticut, licensed in Connecticut (61120) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1619357001
Entity TypeIndividualFemale
Primary Taxonomy207RC0000X
Provider Legal NameMERILYN S VARGHESE THENGONECredential: M.D.
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address20 York StNew Haven, CT 06510-3220 · (203) 688-4748 · Fax (203) 688-4740
Phone(203) 688-4748
Fax(203) 688-4740
Sole ProprietorYes
Enumeration DateJune 1, 2015
Last NPPES UpdateJune 1, 20233 updates tracked since enumeration
NPPES CertifiedMarch 21, 2023
✔ NPI 1619357001 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in CT · 61120
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal MedicineTaxonomy 207R00000X · License 61120 (CT)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
20 YORK ST, New Haven, CT 06510
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1950 Campbell Ave # 11Acsl1, VA Connecticut Healthcare SystemWest Haven, CT 06516-2770 · Phone (203) 688-8300
Location 2330 Brookline AveBoston, MA 02215-5400 · Phone (617) 667-7000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Merilyn S Varghese Thengone M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Merilyn Varghese Thengone reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Yale University
0.4 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06510 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

AUDREY P SENIOR APRN
Nurse Practitioner (Family)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5860
DR. YEISID F FIGUEREDO M.D.
Pediatrics (Neonatal-Perinatal Medicine)
20 YORK ST, DEPT OF NEONATOLOGY
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2320
YALE NEW HAVEN HOSPITAL
Durable Medical Equipment & Medical Supplies (Customized Equipment)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2046
TAYLOR KINGSTON
Dietitian, Registered
20 YORK ST, FOOD AND NUTRITION EPB806
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9185
DR. TRAVIS DANIEL BONTRAGER MD
Hospitalist
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1734
TERESA JOSEPH D.O.
Internal Medicine (Nephrology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 737-8894
MR. BRAD ST. MARTIN MD
Obstetrics & Gynecology
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
BERNADETTE BIMONTE-HACKETT LCSW
Social Worker (Clinical)
20 YORK ST, SOCIAL WORK EP10-635
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-5161

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 Merilyn Varghese Thengone's NPI number?

The NPI number for Merilyn Varghese Thengone is 1619357001. It was assigned to this individual provider in the NPPES registry on June 1, 2015.

Where is Merilyn Varghese Thengone located?

Merilyn Varghese Thengone practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4748.

What is Merilyn Varghese Thengone's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Merilyn Varghese Thengone enrolled in Medicare?

Yes. Merilyn Varghese Thengone is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Merilyn Varghese Thengone's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Merilyn Varghese Thengone reassigns Medicare benefits to Yale University (New Haven, 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 Merilyn Varghese Thengone's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Merilyn Varghese Thengone was last updated on June 1, 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.