Quick answers
- Which hospitals does Daniel R. Lemay work at?
- Medicare's official clinician data lists Daniel R. Lemay at 4 hospitals: Orange County Global Medical Center, Saint Francis Medical Center, St Mary Medical Center and UCI Health-Lakewood. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel R. Lemay see patients?
- Medicare's clinician data lists 1 practice location in Downey, CA. Call before your visit to confirm the address.
- What is Daniel R. Lemay's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Daniel R. Lemay accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel R. Lemay 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 Daniel R. Lemay?
- (562) 862-1134, as listed in official Medicare / NPI Registry data.
- What is Daniel R. Lemay's NPI number?
- 1356347959. 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 R. Lemay works
Medicare's Facility Affiliation Data lists Daniel R. Lemay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Orange County Global Medical CenterSanta Ana, CA · Acute Care Hospital · CCN 050746
- Saint Francis Medical CenterLynwood, CA · Acute Care Hospital · CCN 050104
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050191
- UCI Health-LakewoodLakewood, CA · Acute Care Hospital · CCN 050581
Practice locations
Addresses where Daniel R. Lemay is enrolled with Medicare (CMS data updated 2026-10-02).
- 8043 2nd St, Suite 105Downey, CA 90241 (562) 862‑1134
Group practices
Medicare enrollment lists Daniel R. Lemay as a member of this group (CMS data updated 2026-10-02).
- Daniel R. Lemay MD PHD Inc2 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356347959 |
| 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