DILLON Y CHEN MD, PHD
NPI 1841633914
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in New Haven, CT

Q: What is Dillon Chen's NPI number?

The NPI number for Dillon Chen is 1841633914. It was assigned to this individual provider in the NPPES registry on April 9, 2013.

Q: What is Dillon Chen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.

Q: When was this NPI record last updated?

The NPPES record for Dillon Chen was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.

Active since April 09, 2013PECOS Enrolled

330 CEDAR ST, NEW HAVEN, CT 06510(203) 785-5708 Get Directions Write a Review

NPPES record last updated: June 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dillon Y Chen Md, Phd NPPES

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

DILLON Y CHEN MD, PHD (NPI 1841633914) is an individual neurology with special qualifications in child neurology provider in New Haven, Connecticut, licensed in Connecticut (80208) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841633914

Entity TypeIndividualMale

Primary Taxonomy2084N0402X

Provider Legal NameDILLON Y CHENCredential: MD, PHD

Location Address330 CEDAR STNew Haven, CT 06510-3218

Mailing Address330 Cedar StNew Haven, CT 06510-3218 · (203) 785-5708

Phone(203) 785-5708

Sole ProprietorNo

Enumeration DateApril 9, 2013

Last NPPES UpdateJune 24, 2025

NPPES CertifiedJune 24, 2025

✔ NPI 1841633914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Neurology with Special Qualifications in Child NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0402X

Licenses✔ Licensed in CT · 80208✔ Licensed in CA · A133170

Definition

A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.

330 CEDAR ST, New Haven, CT 06510

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dillon Y Chen Md, Phd 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 Reassignments

Medicare enrollment records show Dillon Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University

0.3 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

Greenwich Hospital

41 mi

General Acute Care Hospital

5 PERRYRIDGE RD
Greenwich, CT 06830

Reassigned Medicare billing, Connecticut enrollment
268 clinicians in this Medicare group

NPI 1609846088 (203) 863-3000

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

$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.

DR. PRAMOD BONDE MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

330 CEDAR ST, BOADMAN 204
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-6122

KAVYA SRINIVASAN

Student in an Organized Health Care Education/Training Program

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-3898

DR. JEROME DWUAN TAYLOR MD

Surgery

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (929) 210-6160

LAURA DAVIS

Surgery

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-5000

SARAH ULLRICH M.D.

Student in an Organized Health Care Education/Training Program

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-7890

DR. MAURO HANAOKA MD

Radiology (Diagnostic Radiology)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-2385

TRACY A STURROCK APRN

Nurse Practitioner (Family)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 875-3098

DR. ALEXANDER KORAL MD

Pediatrics (Pediatric Gastroenterology)

330 CEDAR ST, LMP 4093
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-4649

MRS. HEATHER MARIE ZELL APRN, CPNP

Nurse Practitioner (Pediatrics)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 737-2754

MATTHEW ALAN HORNICK MD

Surgery (Pediatric Surgery)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (215) 785-2701

DR. DANIEL G SOLOMON M.D.

Surgery (Pediatric Surgery)

330 CEDAR ST, FMB 131
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-7643

MS. DANIELA HOCHREITER M.D.

Pediatrics

330 CEDAR ST, DPT PEDS, FACULTY AFFAIRS, LMP 4100
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 737-3763

MITSUTOMO YAMADA MD

Student in an Organized Health Care Education/Training Program

330 CEDAR ST, YNHH - EB204
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-7627

KATHLEEN JO ELAYDA CORBIN

Pediatrics (Pediatric Rheumatology)

330 CEDAR ST, DCB 14
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 688-2475

UMER MANSOOR DARR MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

330 CEDAR ST, BB204
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-6253

MS. KRISTIN DEANNE OLIVEIRA M.D.

Surgery (Surgical Critical Care)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 737-5684

DR. ROBERT KEE HANG MD

Radiology (Diagnostic Radiology)

330 CEDAR ST, TOMPKINS EAST 2
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-5253

NAYIF M ALNAIF M.B.B.S.

Plastic Surgery

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-2571

DR. LAUREN PISCHEL M.D.

Internal Medicine (Infectious Disease)

330 CEDAR ST
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-7411

DR. JONATHAN ANDREW CARDELLA M.D., FRCS (C)

Surgery (Vascular Surgery)

330 CEDAR ST, VASCULAR SURGERY
NEW HAVEN, CT 06510

South Central Connecticut Planning Region (203) 785-2561

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 Dillon Chen's NPI number?

The NPI number for Dillon Chen is 1841633914. It was assigned to this individual provider in the NPPES registry on April 9, 2013.

Where is Dillon Chen located?

Dillon Chen practices at 330 Cedar St, New Haven, CT 06510. The listed phone number is (203) 785-5708.

What is Dillon Chen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.

Is Dillon Chen enrolled in Medicare?

Yes. Dillon Chen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Dillon Chen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dillon Chen reassigns Medicare benefits to 2 organizations: Yale University (New Haven, CT) and Greenwich Hospital (Greenwich, CT). Each 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 Dillon Chen'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 Dillon Chen was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.