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

Individual provider Dermatology Physician · NPI 1558142604

Tristan Retzlaff, PA-C is a Physician Assistant in Billings, Montana. Qualified in 2023, 3 years ago. Practices with Billings Clinic, a 805-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
3
Licensed in
MT
In the registry since
2023
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

801 N 29th St
Billings, MT 59101-0905
Phone: (971) 678-7766
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence MED-PAC-LIC-130649 (MT)
Dermatology Physician Taxonomy 207N00000X · Licence MED-PAC-LIC-130649 (MT)

Record details

NPI number1558142604
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedOctober 12, 2023
Last updated in NPPESNovember 15, 2023
Certification dateNovember 15, 2023

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Billings Clinic — 805 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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