Nicholas Callahan, MPH DMD MD

Maxillofacial Surgery (CMS) · Chicago, IL

Call (312) 413-2379 Directions

At a glance

801 S Paulina St, Chicago, IL 60612

Published activity: Melanoma (skin cancer) excision · Removal of tissue. View counts and coverage

NPPES record updated Aug 25, 2026. Public records can lag behind changes at a practice.

Before you call: a quick checklist

Are you accepting new patients?
Do you accept my specific insurance plan?
Do you provide the service I need at this address?
Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

801 S Paulina St
Chicago, IL 60612

Additional reported practice locations

451 Clarkson Ave
Dental Clinic
Brooklyn, NY 112032054
Phone: 7182454914

REPORTED BACKGROUND

Education & affiliations

Medical / professional school: State University Of New York Downstate Medical Center
Graduation year: 2013
CMS specialties: Maxillofacial Surgery

Practice groups

The Board Of Trustees Of The University Of Illinois

Reported hospital affiliations

University Of Illinois Hospital And Clinics Chicago, IL

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

Advertising spaceAdvertisements are separate from provider records.

PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

Procedure category	Published Medicare activity
Melanoma (skin cancer) excision	1-10
Removal of tissue	1-10

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

Explore similar providers →

PAYMENT TRANSPARENCY

Industry-reported general payments

$2,614.19General payments · 2025

8Reported transactions

4Reporting companies

Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.

See payment purposes and reporting companies

Reported purposes

Purpose	Amount
Honoraria	$2,000.00
Food and beverage	$614.19

Reporting companies

Company	Amount
KLS-MARTIN L.P.	$2,295.64
ACERA SURGICAL, INC.	$158.06
AXOGEN	$140.19
AROA BIOSURGERY INCORPORATED	$20.30

View official Open Payments profile ↗

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record

NPI1083920227

Call Directions

Registry details

Primary taxonomy: Maxillofacial Surgery (CMS)
Taxonomy code: 204E00000X
Enumeration date: Aug 25, 2010
Record updated: Aug 25, 2026

More registry details

Provider type: Individual · Type 1
Reported credentials: MPH DMD MD