Quick answers
- Which hospitals does David Koller work at?
- Medicare's official clinician data lists David Koller at 3 hospitals: Providence Little Co of Mary Med Ctr San Pedro, Providence Little Company of Mary Med Ctr Torrance and Torrance Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David Koller see patients?
- Medicare's clinician data lists 1 practice location in Torrance, CA. Call before your visit to confirm the address.
- What is David Koller's specialty?
- Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
- Does David Koller accept Medicare assignment?
- Yes. Medicare's clinician data says David Koller 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 David Koller offer telehealth?
- Medicare's clinician data says David Koller offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for David Koller?
- (310) 373-6864, as listed in official Medicare / NPI Registry data.
- What is David Koller's NPI number?
- 1417367517. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David Koller works
Medicare's Facility Affiliation Data lists David Koller at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Little Co of Mary Med Ctr San PedroSan Pedro, CA · Acute Care Hospital · CCN 050078
- Providence Little Company of Mary Med Ctr TorranceTorrance, CA · Acute Care Hospital · CCN 050353
- Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · CCN 050351
Practice locations
Addresses where David Koller is enrolled with Medicare (CMS data updated 2026-10-02).
- 23451 Madison St, Suite 300Torrance, CA 90505 (310) 373‑6864
Group practices
Medicare enrollment lists David Koller as a member of this group (CMS data updated 2026-10-02).
- Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
Specialties
Find other Colorectal Surgery (Proctology) doctors in California →
Other colorectal surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1417367517 |
| 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