NPPES file of Aug 9, 2026

Brian Christopher Callaghan, MD

Neurology Physician · Ann Arbor, MI

Brian Christopher Callaghan, MD is a neurology physician with a practice address in Ann Arbor, Michigan, and NPI 1619032901, issued on Dec 27, 2006. Check the license (Michigan 4301091601, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1619032901
Name
Brian Christopher Callaghan
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
4301091601 MI
MT183845 PA
Self-reported in NPPES; status is on the state search
Practice location
1500 East Medical Center Dr, Ann Arbor, MI 48109
Phone
(734) 936-9035
Enumerated
Dec 27, 2006
Record last updated
Jul 21, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090720000319); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2004
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 1500 East Medical Center Dr

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

  1. Samia Abdelnabi, CNMAdvanced Practice Midwife1639404320
  2. Mahshid Abir, MDEmergency Medicine Physician1790988632
  3. Barbara Adams, MDPediatric Rheumatology Physician1962412577
  4. David Adams, MBBSAnesthesiology Physician1346484417
  5. Gaury Adhikary, MDAnesthesiology Physician1629094297
  6. Jeremy Adler, MDPediatric Gastroenterology Physician1033243191

Verify Brian Christopher Callaghan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301091601
    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
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average neurology physician in 2024

42 Medicare Part D claims for 19 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Brian Callaghan42
  2. Specialty average1,370

Most prescribed

  1. Gabapentin18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Regents OF The University OF MichiganAnn Arbor, MI

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

Brian Christopher Callaghan among 739 neurology physician records in Michigan

Brian Christopher Callaghan, MD is one of 739 neurology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 60% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2004 · median 2005 among the 501 with a school on file
  • Record last updated2009 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Michigan

There are 739 neurology physician records in Michigan.

The 8 neurology physician records with the nearest ZIP codes

  1. Sami Barmada, MD, PHDAnn Arbor, MI 481091144247891
  2. Kelvin Chou, MDAnn Arbor, MI 481091376539791
  3. Praveen Dayalu, MDAnn Arbor, MI 481091508879206
  4. John Fink, MDAnn Arbor, MI 481091346339231
  5. Kirk Frey, MDAnn Arbor, MI 481091841382892
  6. Judith Heidebrink, MDAnn Arbor, MI 481091851480727
  7. Kerry Hulsing, MDAnn Arbor, MI 481091326051020
  8. David Irani, MDAnn Arbor, MI 481091558317404

Common questions

What is Brian Christopher Callaghan, MD's NPI number?

Brian Christopher Callaghan, MD's National Provider Identifier (NPI) is 1619032901, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Christopher Callaghan, MD located?

The NPPES record lists a practice address at 1500 East Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-9035. Providers update this record themselves, so call before visiting.

How can I verify Brian Christopher Callaghan, MD's license?

NPPES lists Michigan license number 4301091601, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian Christopher Callaghan, MD prescribe under Medicare Part D?

In 2024, Brian Christopher Callaghan, MD had 42 Medicare Part D claims for 19 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

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.