Quick answers
- Which hospitals does Daniel P. Oconnor work at?
- Medicare's official clinician data lists Daniel P. Oconnor at 2 hospitals: Mercy Health - Tiffin Hospital and Mercy St Vincent Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel P. Oconnor see patients?
- Medicare's clinician data lists 8 practice locations, including Defiance, OH, Toledo, OH and Oregon, OH. Call before your visit to confirm the address.
- What is Daniel P. Oconnor's specialty?
- Medicare lists Pulmonary Disease as the primary specialty.
- Does Daniel P. Oconnor accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel P. Oconnor accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Daniel P. Oconnor offer telehealth?
- Medicare's clinician data says Daniel P. Oconnor offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Daniel P. Oconnor?
- (419) 784-1414, as listed in official Medicare / NPI Registry data.
- What is Daniel P. Oconnor's NPI number?
- 1063070969. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel P. Oconnor works
Medicare's Facility Affiliation Data lists Daniel P. Oconnor at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Health - Tiffin HospitalTiffin, OH · Acute Care Hospital · CCN 360089
- Mercy St Vincent Medical CenterToledo, OH · Acute Care Hospital · CCN 360112
Practice locations
Addresses where Daniel P. Oconnor is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1400 E 2nd StDefiance, OH 43512 (419) 784‑1414
- 2213 Cherry StToledo, OH 43608
- 2222 Cherry St, Suite 1400Toledo, OH 43608
- 2600 Navarre AveOregon, OH 43616
- 27 St Lawrence DrTiffin, OH 44883 (419) 455‑8500
Group practices
Medicare enrollment lists Daniel P. Oconnor as a member of these groups (CMS data updated 2026-10-02).
- Mercy Health Physicians North Specialty Care LLC355 clinicians in the group
- Mercy Medical Partners Northern Region Specialty Care LLC86 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in Defiance
Clinicians with the same Medicare primary specialty in Defiance, OH — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063070969 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians