ERIC M. CHEN MD
NPI 1558440222
Allergy & Immunology in Walnut Creek, CA

Active since November 03, 2006PECOS Enrolled
320 LENNON LN, WALNUT CREEK, CA 94598(925) 906-2000 Get Directions Write a Review

NPPES record last updated: December 6, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Eric M. Chen Md NPPES

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

ERIC M. CHEN MD (NPI 1558440222) is an individual allergy & immunology provider in Walnut Creek, California, licensed in California (A68015) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1558440222
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameERIC M. CHENCredential: MD
Location Address320 LENNON LNWalnut Creek, CA 94598-2419
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Sole ProprietorNo
Enumeration DateNovember 3, 2006
Last NPPES UpdateDecember 6, 2021
NPI 1558440222 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License Licensed in CA · A68015
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
320 LENNON LN, Walnut Creek, CA 94598

Other Identifiers 1

Medicaid00A680150CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Eric M. Chen 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.

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.

Speech-Language Pathologist
320 LENNON LN
WALNUT CREEK, CA 94598
Optometrist
320 LENNON LN
WALNUT CREEK, CA 94598
Physical Therapist (Hand)
320 LENNON LN
WALNUT CREEK, CA 94598
Ophthalmology
320 LENNON LN
WALNUT CREEK, CA 94598
Internal Medicine
320 LENNON LN
WALNUT CREEK, CA 94598
Optometrist
320 LENNON LN
WALNUT CREEK, CA 94598
Pharmacist
320 LENNON LN
WALNUT CREEK, CA 94598
Family Medicine
320 LENNON LN
WALNUT CREEK, CA 94598

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 Eric Chen's NPI number?

The NPI number for Eric Chen is 1558440222. It was assigned to this individual provider in the NPPES registry on November 3, 2006.

Where is Eric Chen located?

Eric Chen practices at 320 Lennon Ln, Walnut Creek, CA 94598. The listed phone number is (925) 906-2000.

What is Eric Chen's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Eric Chen enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Eric Chen was last updated on December 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.