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

Dr. Katherine Deetta Greenwalt, FNP-C

Individual provider Family Nurse Practitioner · NPI 1639763675

Dr. Katherine Deetta Greenwalt, FNP-C is a Nurse Practitioner in Pasadena, California. Qualified in 2023, 3 years ago. Practices with The Oncology Institute Ca, a Professional Corporation, a 114-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2021
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

1017 S Fair Oaks Ave
Pasadena, CA 91105-2621
Phone: (626) 403-6200
Fax: (626) 403-2580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95027605 (CA)

Record details

NPI number1639763675
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorYes
NPI enumeratedFebruary 20, 2021
Last updated in NPPESJuly 13, 2024
Certification dateJuly 13, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice The Oncology Institute Ca, A Professional Corporation — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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