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

Clarissa M. Johnston, MD

Individual provider Hospitalist Physician · NPI 1649342445

Clarissa M. Johnston, MD is a Hospice/Palliative Care in Austin, Texas. Graduated from University of California, San Francisco School of Medicine in 1995, 31 years ago. Practices with Seton Family of Doctors, a 785-clinician group and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
31
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA, TX
In the registry since
2006
Specialties on file
3
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

601 E 15th St
Austin, TX 78701-1930
Phone: (512) 324-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospice and Palliative Medicine (Internal Medicine) Physician (primary) Taxonomy 207RH0002X · Licence Q1181 (TX)
Hospitalist Physician Taxonomy 208M00000X · Licence A62097 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence Q1181 (TX)

Record details

NPI number1649342445
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 15, 2006
Last updated in NPPESOctober 8, 2015

Medicare enrollment

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

Medicare specialtyHOSPICE/PALLIATIVE CARE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Seton Family Of Doctors — 785 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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