Are you Dr. Jansen? This profile is yours to edit: update your address, phone, photo and services.

Edit this profile

Provider Profile

Cal J. Jansen, OD

Is this you? Edit this profile

At a glance

About Dr. Jansen

The NPI registry lists Cal J. Jansen, OD as a student in an organized health care education program, in Birmingham, AL. NPI 1821920695 identifies this record in the national registry.

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

Credentials & Licensing

NPINational Provider Identifier
1821920695Issued 2026

As reported to the NPI registry ↗

Common questions

What does Dr. Jansen specialize in?

Dr. Jansen is a medical trainee in Birmingham, AL. 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 is Dr. Jansen located?

Dr. Jansen is listed at 1716 University Blvd, Birmingham, AL 35233. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Jansen's phone number?

The number on file is (205) 934-3036. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Jansen?

Dr. Jansen's National Provider Identifier is 1821920695. 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. Jansen's profile verified?

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

Guide.md

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

A GigHz company · Founder: Pouyan Golshani, MD