Timothy O Callaghan, DO
NPI 1982604617 · Family Medicine Physician · Ludington, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy O Callaghan, DO is a Family Medicine Physician provider in Ludington, MI (NPI 1982604617).
Provider details
- NPI number
- 1982604617
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 009392 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-22
- Last updated
- 2014-09-05
Frequently asked questions
- What is Timothy O Callaghan's NPI number?
- Timothy O Callaghan's National Provider Identifier (NPI) is 1982604617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy O Callaghan's specialty?
- Timothy O Callaghan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy O Callaghan located?
- Timothy O Callaghan's practice location on file with NPPES is 922 Lawndale St, Ludington, MI 49431-1928.
- What is Timothy O Callaghan's phone number?
- The practice phone number listed in the NPPES registry for Timothy O Callaghan is (231) 845-7380.
- Does Timothy O Callaghan accept Medicare?
- Timothy O Callaghan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy O Callaghan's NPI active?
- Yes — Timothy O Callaghan's NPI (1982604617) is active in the NPPES registry as of the last update on 2014-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.