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

Dr. Brett Kirk Mullin, MD

Individual provider Internal Medicine Physician · NPI 1275949083

Dr. Brett Kirk Mullin, MD is an Internal Medicine in Porterville, California. Qualified in 2014, 12 years ago. Practices with The Regents of the University of California-Irvine, a 104-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

465 W Putnam Ave
Porterville, CA 93257-3320
Phone: (559) 791-3880
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A146698 (CA)

Record details

NPI number1275949083
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2014
Last updated in NPPESAugust 4, 2017
Mailing address465 W Putnam Ave, Porterville, CA 93257-3320

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice The Regents Of The University Of California-Irvine — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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