Quick answers
- Which hospitals does Mark R. Homicz work at?
- Medicare's official clinician data lists Mark R. Homicz at 5 hospitals: Adventist Health Ukiah Valley, California Pacific Medical Center-Davies Campus Hospital, Marinhealth Medical Center, Providence Santa Rosa Memorial Hospital and Sutter Santa Rosa Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark R. Homicz see patients?
- Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
- What is Mark R. Homicz's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Mark R. Homicz accept Medicare assignment?
- Medicare's clinician data says Mark R. Homicz may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Mark R. Homicz offer telehealth?
- Medicare's clinician data says Mark R. Homicz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark R. Homicz?
- (415) 476-1000, as listed in official Medicare / NPI Registry data.
- What is Mark R. Homicz's NPI number?
- 1336198449. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark R. Homicz works
Medicare's Facility Affiliation Data lists Mark R. Homicz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Ukiah ValleyUkiah, CA · Acute Care Hospital · CCN 050301
- California Pacific Medical Center-Davies Campus HospitalSan Francisco, CA · Acute Care Hospital · CCN 050008
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050291
Practice locations
Addresses where Mark R. Homicz is enrolled with Medicare (CMS data updated 2026-10-02).
- 505 Parnassus AveSan Francisco, CA 94143 (415) 476‑1000
Group practices
Medicare enrollment lists Mark R. Homicz as a member of this group (CMS data updated 2026-10-02).
- Regents Univ of California UCSF283 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Yale University School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336198449 |
| 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