Quick answers
- Does Elmer W. Harder accept Medicare assignment?
- Yes. Medicare's clinician data says Elmer W. Harder accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Elmer W. Harder's NPI number?
- 1215014428. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Elmer W. Harder is enrolled with Medicare (CMS data updated October 2, 2026).
- 765 Medical Ctr CtChula Vista, CA 91911 (619) 267‑8313
- 967 Lane Ave, Suite 102Chula Vista, CA 91914 (619) 267‑8313
Group practices
Medicare enrollment lists Elmer W. Harder as a member of this group (CMS data updated October 2, 2026).
- South Bay Obgyn5 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Other clinicians in South Bay Obgyn
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215014428 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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