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Physician Profile

Ronald W. Holz, MD/PHD

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At a glance

About Dr. Holz

The NPI registry lists Ronald W. Holz, MD/PHD as a student in an organized health care education program, in Mill Valley, CA. NPI 1013868207 identifies this record in the national registry.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Student in an Organized Health Care Education Program (Primary)

Credentials & Licensing

NPINational Provider Identifier
1013868207Issued 2026

As reported to the NPI registry ↗

Common questions

What is Dr. Holz's specialty?

Dr. Holz is a medical trainee in Mill Valley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.

NPI registry

Where can I find Dr. Holz?

Dr. Holz is listed at 65 Longfellow Rd, Mill Valley, CA 94941. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Dr. Holz?

The number on file is (734) 904-5227. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Holz?

Dr. Holz's National Provider Identifier is 1013868207. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Is Dr. Holz's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Holz. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.