Quick answers
- Which hospitals does Thaddeus J. Obarr work at?
- Medicare's official clinician data lists Thaddeus J. Obarr at 1 hospital: UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thaddeus J. Obarr see patients?
- Medicare's clinician data lists 4 practice locations, including Foothill Ranch, CA, Long Beach, CA and Newport Beach, CA. Call before your visit to confirm the address.
- What is Thaddeus J. Obarr's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Thaddeus J. Obarr accept Medicare assignment?
- Yes. Medicare's clinician data says Thaddeus J. Obarr 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.
- What is the phone number for Thaddeus J. Obarr?
- (818) 937-9969, as listed in official Medicare / NPI Registry data.
- What is Thaddeus J. Obarr's NPI number?
- 1609168814. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thaddeus J. Obarr works
Medicare's Facility Affiliation Data lists Thaddeus J. Obarr at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Thaddeus J. Obarr is enrolled with Medicare (CMS data updated 2026-10-02).
- 27462 Portola Pkwy, Suite 100Foothill Ranch, CA 92610 (818) 937‑9969
- 2880 Atlantic Ave, Suite 160Long Beach, CA 90806 (562) 453‑3814
- 351 Hospital Rd, Suite 110Newport Beach, CA 92663 (818) 937‑9969
- 3751 Katella AveLos Alamitos, CA 90720 (562) 598‑1311
Group practices
Medicare enrollment lists Thaddeus J. Obarr as a member of these groups (CMS data updated 2026-10-02).
- Orange Coast Anesthesia Inc87 clinicians in the group
- Premiercare Anesthesia Fountain Valley Inc10 clinicians in the group
- Clarity Anesthesia Medical Group2 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609168814 |
| 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