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

Dr. Mark L Shiu, DO

Individual provider Family Medicine Physician · NPI 1629004478

Dr. Mark L Shiu, DO is a Family Practice in Rancho Cucamonga, California. Qualified in 2003, 23 years ago. Practices with Gateway Medicor - Rancho Cucamonga Inc, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
23
Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

7974 Haven Ave Ste 250
Rancho Cucamonga, CA 91730-3052
Phone: (800) 734-1733
Fax: (800) 734-1733
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A9372 (CA)

Record details

NPI number1629004478
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 23, 2006
Last updated in NPPESJuly 25, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Gateway Medicor - Rancho Cucamonga Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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