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

DR. MADELIN FENIANOS MD
NPI 1760019749
Internal Medicine - Pulmonary Disease in New Haven, CT

Active since March 27, 2020PECOS Enrolled
20 YORK ST, NEW HAVEN, CT 06510(203) 688-4242 Get Directions Write a Review

NPPES record last updated: October 29, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 29, 2026, Mar 27, 2020 (2 updates tracked since 2020).

About Dr. Madelin Fenianos Md NPPES

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

DR. MADELIN FENIANOS MD (NPI 1760019749) is an individual pulmonary disease provider in New Haven, Connecticut, licensed in Connecticut (86458) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760019749
Entity TypeIndividualFemale
Primary Taxonomy207RP1001X
Provider Legal NameDR. MADELIN FENIANOSCredential: MD
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address20 York StNew Haven, CT 06510-3220
Phone(203) 688-4242
Sole ProprietorNo
Enumeration DateMarch 27, 2020
Last NPPES UpdateOctober 29, 20262 updates tracked since enumeration
NPPES CertifiedOctober 29, 2026
✔ NPI 1760019749 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CT · 86458
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
20 YORK ST, New Haven, CT 06510
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Madelin Fenianos Md 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.

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
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
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 Madelin Fenianos's NPI number?

The NPI number for Madelin Fenianos is 1760019749. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Madelin Fenianos located?

Madelin Fenianos practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Madelin Fenianos's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Madelin Fenianos enrolled in Medicare?

Yes. Madelin Fenianos is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Madelin Fenianos was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.