Dr. Nicholas Callahan is an Orthodontist practicing in Chicago, Illinois. Active license number of Dr. Nicholas Callahan is
036147058 for Orthodontics in Illinois. His current practice location is
801 S Paulina St, Chicago. Patients can reach him at
312-413-2379 or can fax him at
312-996-5987. Dr. Nicholas Callahan is
MPH DMD MD in Orthodontics and his NPI number (Unique professional ID assigned by NPPES) is 1083920227.
Dr. Nicholas Callahan major responsibilities include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.
Orthodontists are also called dentofacial orthopedics who deals with that area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex.
Complete Profile:
Dr. Nicholas Callahan speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Orthodontics |
| Credentials: | MPH DMD MD |
| Gender: | Male |
| Practice Address: | 801 S Paulina St, Chicago, Illinois, 60612 |
| Phone: | 312-413-2379 |
| Fax: | 312-996-5987 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1083920227 |
| NPI Enumeration Date: | 25 Aug, 2010 |
| NPI Last Update On: | 25 Aug, 2026 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Nicholas Callahan are as mentioned below.
| License Number | Specialization | State | Status | |
| 036147058 | Orthodontics | Illinois | Primary | |
| 021102880 | Dentist | Illinois | Secondary | |
| 019031599 | Oral & Maxillofacial Surgery | Illinois | Secondary | |
| 021002880 | Orthodontics | Illinois | Secondary | |
| 036147058 | Dentist | Illinois | Secondary | |
| 036147058 | Orthodontics | Illinois | Secondary | |
| 021002880 | Oral & Maxillofacial Surgery | Illinois | Secondary | |
| 019031599 | Dentist | Illinois | Secondary | |
| 019031599 | Orthodontics | Illinois | Secondary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 801 S Paulina St, Chicago, Illinois |
| Zip: | 60612-7210 |
| Phone Number: | 312-413-2379 |
| Fax Number: | 312-996-5987 |
Patients can reach Dr. Nicholas Callahan at
801 S Paulina St, Chicago, Illinois or can
call to book an appointment on 312-413-2379.
Comments/ Reviews:
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.