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

Dr. Lilly Frawley Hammack, DO, RDN

Individual provider Registered Dietitian · NPI 1972932523

Dr. Lilly Frawley Hammack, DO, RDN is an Internal Medicine in Gilroy, California. Graduated from University of North Texas Hsc, College of Osteopathic Med in 2021, 5 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
5
Trained at
University of North Texas Hsc, College of Osteopathic Med
Licensed in
CA, TX
In the registry since
2013
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

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Practice location Address checks out

7520 Arroyo Cir
Gilroy, CA 95020-7303
Phone: (408) 848-4600
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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 21928 (CA)
Registered Dietitian Taxonomy 133V00000X · Licence DT81915 (TX)

Record details

NPI number1972932523
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO , RDN
Sole proprietorNo
NPI enumeratedNovember 4, 2013
Last updated in NPPESAugust 4, 2025
Certification dateAugust 4, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NORTH TEXAS HSC, COLLEGE OF OSTEOPATHIC MED
Graduated 2021 (5 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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