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

Mr. Alex Mackay Calderwood, PA-C

Individual provider Physician Assistant · NPI 1538723937

Mr. Alex Mackay Calderwood, PA-C is a Physician Assistant in Tacoma, Washington. Qualified in 2019, 7 years ago. Practices with Franciscan Medical Group, a 1,417-clinician group and accepts Medicare assignment. Licensed in Connecticut and Washington.

Years since qualifying
7
Licensed in
CT, WA
In the registry since
2019
Specialties on file
3
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Practice location Address checks out

1717 S J St
Tacoma, WA 98405-4933
Phone: (844) 364-2778
Fax: (253) 428-8440
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA61135685 (WA)
Physician Assistant Taxonomy 363A00000X · Licence 23.004437 (CT)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 4437 (CT)

Record details

NPI number1538723937
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMay 1, 2019
Last updated in NPPESApril 19, 2021
Certification dateApril 19, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Franciscan Medical Group — 1417 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Tacoma