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

DR. RICHARD R. MAREK D.D.S.
NPI 1851380927
Dentist - General Practice in Chicago, IL

Q: What is Richard Marek's NPI number?

The NPI number for Richard Marek is 1851380927. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Q: What is Richard Marek's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Richard Marek 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 31 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.

Active since October 20, 2005PECOS Enrolled

5929 N MILWAUKEE AVE, CHICAGO, IL 60646(773) 631-6887(773) 631-1898 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Richard R. Marek D.d.s. NPPES

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

DR. RICHARD R. MAREK D.D.S. (NPI 1851380927) is an individual general practice provider in Chicago, Illinois, licensed in Illinois (1917470) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851380927

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. RICHARD R. MAREKCredential: D.D.S.

Location Address5929 N MILWAUKEE AVEChicago, IL 60646-5419

Mailing Address5929 N Milwaukee AveChicago, IL 60646-5419 · (773) 631-6887 · Fax (773) 631-1898

Phone(773) 631-6887

Fax(773) 631-1898

Sole ProprietorNo

Enumeration DateOctober 20, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1851380927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in IL · 1917470

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.

5929 N MILWAUKEE AVE, Chicago, IL 60646

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Other Identifiers 1

Medicaid101834IL

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 ›

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. Richard R. Marek D.d.s. 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 60646 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

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

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

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

DR. SAL JOSEPH CIRRINCIONE DC

Chiropractor

5929 N MILWAUKEE AVE
CHICAGO, IL 60646

Cook County (773) 775-6635

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 Richard Marek's NPI number?

The NPI number for Richard Marek is 1851380927. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Where is Richard Marek located?

Richard Marek practices at 5929 N Milwaukee Ave, Chicago, IL 60646. The listed phone number is (773) 631-6887.

What is Richard Marek's specialty?

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

Is Richard Marek enrolled in Medicare?

Yes. Richard Marek is registered in the Medicare PECOS enrollment system.

What insurance does Richard Marek 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 Richard Marek 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 Richard Marek 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 31 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.