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

Garth Howland Harley Jr., MD

Individual provider Diagnostic Radiology Physician · NPI 1194715078

Garth Howland Harley Jr., MD practises Diagnostic Radiology in Tracy, California. Graduated from Georgetown University School of Medicine in 1988, 38 years ago. Practices with Dignity Health Medical Foundation, a 1,204-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
Trained at
Georgetown University School of Medicine
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1530 Bessie Ave Ste 108
Tracy, CA 95376-3080 Not confirmed with CMS for 18 years — call before visiting
Phone: (209) 342-2300
Fax: (209) 524-4240
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G68992 (CA)

Record details

NPI number1194715078
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2005
Last updated in NPPESJanuary 28, 2008

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesGENERAL PRACTICE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Dignity Health Medical Foundation — 1204 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients678
Services billed 995 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Dignity Health Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1204 clinicians in the practice; 12 are shown here.

Other providers in Tracy