Timothy Gerard O Callaghan, DO
Family Medicine Physician · Ludington, MI
Timothy Gerard O Callaghan, DO is a family medicine physician with a practice address in Ludington, Michigan, and NPI 1982604617, issued on Jul 22, 2005. Check the license (Michigan 009392, as entered in NPPES) on the Michigan Board of Medicine (LARA); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Timothy Gerard O Callaghan
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 009392 MI
Self-reported in NPPES; status is on the state search - Practice location
- 922 Lawndale St, Ludington, MI 49431
- Phone
- (231) 845-7380
- Enumerated
- Jul 22, 2005
- Record last updated
- Sep 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (231) 843-8499
- Entity
- Type 1 · individual
Also registered at 922 Lawndale St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Madison Chapman, FNP-CFamily Nurse Practitioner1255062261
- Ashleigh Graham, PAPhysician Assistant1033630082
- Matthew Holden, M.D.Family Medicine Physician1578913265
- Jennifer Miller, D.O.Family Medicine Physician1790789568
- Ryan Rodd, MDFamily Medicine Physician1689164501
- Andrea Sylvester, NPNurse Practitioner1942608005
Verify Timothy Gerard O Callaghan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 009392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13 family medicine physician records list a practice address in Ludington
They are 13 of the 481 NPPES records with a practice address in Ludington, and 6,013 family medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13 in Ludington → All 6,013 in Michigan → Every provider in Ludington →
Other family medicine physician records in Michigan
- Asma AbbasHamtramck, MI1982946463
- Saadia Abbas, MDChesterfield, MI1619136868
- Faezeh AbbasiMonroe, MI1144065921
- Layla Abbasi, MDWayne, MI1346177607
- Marisa Abbo, DORochester Hills, MI1184605388
- Cathleen Abbott, M.D.East Lansing, MI1275630501
- Leah Abbott, MDGwinn, MI1760987341
- Nina Abboud, DORochester Hills, MI1639750557
- Ryan Abboud, DOBingham Farms, MI1104353077
- Christina Abd, MDSterling Heights, MI1770371965
Common questions
What is Timothy Gerard O Callaghan, DO's NPI number?
Timothy Gerard O Callaghan, DO's National Provider Identifier (NPI) is 1982604617, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Gerard O Callaghan, DO located?
The NPPES record lists a practice address at 922 Lawndale St, Ludington, MI, 49431. Phone: (231) 845-7380. Providers update this record themselves, so call before visiting.
How can I verify Timothy Gerard O Callaghan, DO's license?
NPPES lists Michigan license number 009392, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.