Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Kowalczyk

Individual provider Gastroenterology Physician · NPI 1376106344

Mark Kowalczyk is an Internal Medicine in San Diego, California. Graduated from University of Washington School of Medicine in 2019, 7 years ago. Practices with Regents of the University of California, a 2,061-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
7
Trained at
University of Washington School of Medicine
Licensed in
CA
In the registry since
2019
Specialties on file
3
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Practice location Address checks out

200 W Arbor Dr
San Diego, CA 92103-9000
Phone: (800) 926-8273
Fax: (888) 539-8781
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 9300 Campus Point Dr, La Jolla, CA 92037-1300 — (800) 926-8273
  • 9350 Campus Point Dr, La Jolla, CA 92037-1300 — (800) 926-8273
  • 6655 Alvarado Rd, San Diego, CA 92120-5208 — (800) 926-8273

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A180227 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence A180227 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1376106344
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 16, 2019
Last updated in NPPESMay 19, 2025
Certification dateMay 19, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Regents Of The University Of California — 2061 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in San Diego