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DR. LILLY FRAWLEY HAMMACK DO, RDN
NPI 1972932523
Internal Medicine in Gilroy, CA

Active since November 04, 2013PECOS EnrolledAccepts Medicare Assignment
7520 ARROYO CIR, GILROY, CA 95020(408) 848-4600 Get Directions Write a Review

NPPES record last updated: August 4, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 4, 2025, Oct 12, 2023, Mar 29, 2021 (3 updates tracked since 2021).

About Dr. Lilly Frawley Hammack Do, Rdn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LILLY FRAWLEY HAMMACK DO, RDN (NPI 1972932523) is an individual internal medicine provider in Gilroy, California, licensed in California (21928) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS and is a graduate of University Of North Texas Hsc, College Of Osteopathic Med (2021).

NPPES Registry Identity

NPI1972932523
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. LILLY FRAWLEY HAMMACKCredential: DO, RDN
Location Address7520 ARROYO CIRGilroy, CA 95020-7303
Mailing Address18045 Hillwood LnMorgan Hill, CA 95037-3526 · (623) 866-3574
Phone(408) 848-4600
Sole ProprietorNo
Medical School CMSUniversity Of North Texas Hsc, College Of Osteopathic MedGraduated 2021
Enumeration DateNovember 4, 2013
Last NPPES UpdateAugust 4, 20253 updates tracked since enumeration
NPPES CertifiedAugust 4, 2025
✔ NPI 1972932523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 21928
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedDietitian, RegisteredTaxonomy 133V00000X · License DT81915 (TX)
7520 ARROYO CIR, Gilroy, CA 95020
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lilly Frawley Hammack Do, Rdn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103054200
PECOS Enrollment IDI20240101000152
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. ANTONIO CARRASCO NUNEZ ANTONIO NUNEZ LCSW
Social Worker (Clinical)
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-7016
STEPHEN T. SESODY DO
Dermatology
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-4600
EILEEN WUN POON O.D.
Optometrist
7520 ARROYO CIR, STATION 2
GILROY, CA 95020
Santa Clara County (408) 848-7040
DR. MEGAN KAYE ABDOLRASHIDI PSYD
Psychologist (Clinical)
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-7018
STEVE R. HERNANDEZ MD
Pediatrics
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-4600
MS. AMY DALENE KAMP MPT
Physical Therapist
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-4636
ALLEN G. PANG MD
Family Medicine
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-4600
MONICA DWUMAH MENSAH MD
Pediatrics
7520 ARROYO CIR
GILROY, CA 95020
Santa Clara County (408) 848-4600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lilly Hammack's NPI number?

The NPI number for Lilly Hammack is 1972932523. It was assigned to this individual provider in the NPPES registry on November 4, 2013.

Where is Lilly Hammack located?

Lilly Hammack practices at 7520 Arroyo Cir, Gilroy, CA 95020. The listed phone number is (408) 848-4600.

What is Lilly Hammack's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Lilly Hammack enrolled in Medicare?

Yes. Lilly Hammack is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Lilly Hammack was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.