NPPES file of Aug 9, 2026

Nicholas Callahan, MPH DMD MD

Oral & Maxillofacial Surgery (D.M.D.) · Chicago, IL

Nicholas Callahan, MPH DMD MD is an oral & maxillofacial surgery (d.m.d.) with a practice address in Chicago, Illinois, and NPI 1083920227, issued on Aug 25, 2010. Check the license (Illinois 036147058, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083920227
Name
Nicholas Callahan
Credential
MPH DMD MD
Primary taxonomy
Oral & Maxillofacial Surgery (D.M.D.) 204E00000X
License numbers
036147058 IL
019031599 IL
021002880 IL
021102880 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Paulina St, Chicago, IL 60612
Phone
(312) 413-2379
Enumerated
Aug 25, 2010
Record last updated
Feb 29, 2024
Fax
(312) 996-5987
Medicare enrollment
Enrolled (PECOS I20181015002575); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 801 S Paulina St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Abbott, DDSOral and Maxillofacial Surgery (Dentist)1891908737
  2. Nada AbdallahDentist1144847740
  3. Pheba Abraham, DMDOrthodontics and Dentofacial Orthopedics Dentistry1356964480
  4. Leila Ahmadian Khoshe MehrProsthodontics1619497021
  5. Azza Ahmed, BDS, MSC, PHDPediatric Dentistry1326672791
  6. Olatorera AinaDentist1578263885

Verify Nicholas Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 036147058
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 87.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score70.8
  2. Costout of 100 · 30%52.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $368.93

5 payments; by number, the most common kind was food and beverage; the largest payer was KLS-Martin L.P. The 800 providers of this specialty with any payment received $1,463.03 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicholas Callahan$368.93
  2. Specialty average$1,463.03

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. The Board OF Trustees OF The University OF IllinoisChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nicholas Callahan among 62 oral & maxillofacial surgery (d.m.d.) records in Illinois

Nicholas Callahan, MPH DMD MD is one of 62 oral & maxillofacial surgery (d.m.d.) records with a practice address in Illinois. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 61% of them.

  • NPI issued2010 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2013 · median 2008 among the 17 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204E00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral & Maxillofacial Surgery (D.M.D.) providers in Illinois

There are 62 oral & maxillofacial surgery (d.m.d.) records in Illinois.

The 8 oral & maxillofacial surgery (d.m.d.) records with the nearest ZIP codes

  1. Ali Al-Qudsi, DMDChicago, IL 606121518528165
  2. Max Emmerling, DDS, MDChicago, IL 606121679966972
  3. Michael Miloro, DMD, MDChicago, IL 606121437100856
  4. James Murphy, DDS, MDChicago, IL 606121508144585
  5. Mohammed Qaisi, DMD, MDChicago, IL 606121679783088
  6. David Reisberg, DDSChicago, IL 606121952485096
  7. Othman Rezki, DMDChicago, IL 606121255986576
  8. George Rumman, MD, DDSChicago, IL 606121992370480

Common questions

What is Nicholas Callahan, MPH DMD MD's NPI number?

Nicholas Callahan, MPH DMD MD's National Provider Identifier (NPI) is 1083920227, issued on Aug 25, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Callahan, MPH DMD MD located?

The NPPES record lists a practice address at 801 S Paulina St, Chicago, IL, 60612. Phone: (312) 413-2379. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Callahan, MPH DMD MD's license?

NPPES lists Illinois license number 036147058, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

What is Nicholas Callahan, MPH DMD MD's MIPS final score?

The 2023 MIPS final score is 87.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.