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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CAROLINE ELIZABETH LOYCE DUFFY MD
NPI 1376248435
Family Medicine in Tamuning, GU

Active since March 30, 2023
548 S MARINE CORPS DR, TAMUNING, GU 96913(671) 646-5825 Get Directions Write a Review

NPPES record last updated: October 5, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 5, 2026, Oct 4, 2026, Jul 9, 2025 and 1 more (4 updates tracked since 2023).

About Caroline Elizabeth Loyce Duffy Md NPPES

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

CAROLINE ELIZABETH LOYCE DUFFY MD (NPI 1376248435) is an individual family medicine provider in Tamuning, Guam, licensed in California (A200784) and active in the NPI registry since March 2023.

NPPES Registry Identity

NPI1376248435
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameCAROLINE ELIZABETH LOYCE DUFFYCredential: MD
Location Address548 S MARINE CORPS DRTamuning, GU 96913-3539
Mailing Address548 S Marine Corps DrTamuning, GU 96913-3539 · (671) 646-5825
Phone(671) 646-5825
Sole ProprietorNo
Enumeration DateMarch 30, 2023
Last NPPES UpdateOctober 5, 20264 updates tracked since enumeration
NPPES CertifiedOctober 5, 2026
✔ NPI 1376248435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A200784
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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.

MRS. NORHEA CANDO RN
Registered Nurse (Home Health)
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
JONEI DELGADO MS, RDN
Dietitian, Registered
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 687-0636
MRS. CELESTE ULANDAY PUNZALAN-ALMIRA RN
Registered Nurse (Home Health)
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
ERICKSON GASCON PT
Physical Therapist
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
LORRAINE MICHELLE TORRES GOZUM PHYSICAL THERAPIST
Physical Therapist
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
MR. JOEL MENDOZA DIZON O.D.
Optometrist
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
MS. TEMPLE GRACE SARZABA DECENA LPN
Licensed Practical Nurse
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5825
MR. THOMAS JEROME CARUSO R.PH.
Pharmacist
548 S MARINE CORPS DR
TAMUNING, GU 96913
Guam (671) 646-5824

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 Caroline Duffy's NPI number?

The NPI number for Caroline Duffy is 1376248435. It was assigned to this individual provider in the NPPES registry on March 30, 2023.

Where is Caroline Duffy located?

Caroline Duffy practices at 548 S Marine Corps Dr, Tamuning, GU 96913. The listed phone number is (671) 646-5825.

What is Caroline Duffy's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Caroline Duffy was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.