Quick answers
- Which hospitals does Mark Kowalczyk work at?
- Medicare's official clinician data lists Mark Kowalczyk at 1 hospital: UC San Diego Health Hillcrest - Hillcrest Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Kowalczyk see patients?
- Medicare's clinician data lists 3 practice locations, including San Diego, CA and La Jolla, CA. Call before your visit to confirm the address.
- What is Mark Kowalczyk's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Gastroenterology.
- Does Mark Kowalczyk accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Kowalczyk 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 Mark Kowalczyk offer telehealth?
- Medicare's clinician data says Mark Kowalczyk offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark Kowalczyk?
- (858) 657-7000, as listed in official Medicare / NPI Registry data.
- What is Mark Kowalczyk's NPI number?
- 1376106344. 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 Kowalczyk works
Medicare's Facility Affiliation Data lists Mark Kowalczyk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UC San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA · Acute Care Hospital · CCN 050025
Practice locations
Addresses where Mark Kowalczyk is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 W Arbor DrSan Diego, CA 92103
- 9300 Campus Point DrLa Jolla, CA 92037 (858) 657‑7000
- 9350 Campus Point DrLa Jolla, CA 92037 (858) 657‑7000
Group practices
Medicare enrollment lists Mark Kowalczyk as a member of this group (CMS data updated 2026-10-02).
- Regents of the University of California2,089 clinicians in the group
Specialties
- Internal Medicineprimary
- Gastroenterologyalso
Other internal medicine doctors in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1376106344 |
| 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