Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Collin Ross, PHD

Individual provider Physician Assistant · NPI 1629182050

Collin Ross, PHD is a Physician Assistant in San Ysidro, California. Qualified in 2001, 25 years ago. Practices with Centro De Salud De La Comunidad De San Ysidro, Inc, a 291-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4004 Beyer Blvd
San Ysidro, CA 92173-2007
Phone: (619) 662-4100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA16058 (CA)

Record details

NPI number1629182050
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 19, 2006
Last updated in NPPESMarch 7, 2023
Certification dateJanuary 3, 2020

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Centro De Salud De La Comunidad De San Ysidro,Inc. — 291 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 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 patients51
Services billed 78 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

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.

Colleagues at Centro De Salud De La Comunidad De San Ysidro, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 291 clinicians in the practice; 12 are shown here.

Other providers in San Ysidro