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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. RALPH KENNETH ERDMANN D.D.S.
NPI 1821037466
Dentist - General Practice in Berwyn, IL

Active since June 06, 2006
6725 STANLEY AVE, SUITE 1, BERWYN, IL 60402(708) 795-0190(708) 788-5359 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Ralph Kenneth Erdmann D.d.s. NPPES

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

DR. RALPH KENNETH ERDMANN D.D.S. (NPI 1821037466) is an individual general practice provider in Berwyn, Illinois and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1821037466
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. RALPH KENNETH ERDMANNCredential: D.D.S.
Location Address6725 STANLEY AVE, SUITE 1Berwyn, IL 60402-3156
Mailing Address6725 Stanley Ave, Suite 1Berwyn, IL 60402-3156 · (708) 795-0190 · Fax (708) 788-5359
Phone(708) 795-0190
Fax(708) 788-5359
Sole ProprietorNo
Enumeration DateJune 6, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821037466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
6725 STANLEY AVE, Berwyn, IL 60402
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Other Providers at the Same Location NPPES 3

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

DR. THOMAS J RYSZ DDS
Dentist (General Practice)
6725 STANLEY AVE, SUITE 2
BERWYN, IL 60402
Cook County (708) 484-0255
RALPH K. ERDMANN, D.D.S., P.C.
Clinic/Center (Dental)
6725 STANLEY AVE, SUITE 1
BERWYN, IL 60402
Cook County (708) 795-0190
PRECISION DENTAL, LTD.
Dentist (General Practice)
6725 STANLEY AVE
BERWYN, IL 60402
Cook County (708) 484-0255

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 Ralph Erdmann's NPI number?

The NPI number for Ralph Erdmann is 1821037466. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Ralph Erdmann located?

Ralph Erdmann practices at 6725 Stanley Ave Suite 1, Berwyn, IL 60402. The listed phone number is (708) 795-0190.

What is Ralph Erdmann's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does Ralph Erdmann accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Ralph Erdmann 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 Ralph Erdmann was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 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.