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GUAM MEMORIAL HOSPITAL
NPI 1366519027
General Acute Care Hospital in Oka Tamuning, GU

Active since November 29, 2006CLIA Certified · 2 labs
2/5
Hospital Overall Rating
850 GOVERNOR CARLOS CAMACHO ROAD, OKA TAMUNING, GU 96913(671) 647-2937(671) 649-0145 Get Directions Write a Review

NPPES record last updated: October 20, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Guam Memorial Hospital NPPES

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

GUAM MEMORIAL HOSPITAL (NPI 1366519027) is a healthcare organization registered as a general acute care hospital in Oka Tamuning, Guam and active in the NPI registry since November 2006. The organization holds 2 active CLIA laboratory certificates and lists Lillian Q Perez Posadas, Hospital Administrator, Ceo, as its authorized official.

NPPES Registry Identity

NPI1366519027
Entity TypeOrganization
Primary Taxonomy282N00000X
Legal Business NameGUAM MEMORIAL HOSPITAL
Location Address850 GOVERNOR CARLOS CAMACHO ROADOka Tamuning, GU 96913-3128
Mailing Address850 Governor Carlos Camacho RoadOka Tamuning, GU 96913-3128 · (671) 647-2934 · Fax (671) 649-0145
Phone(671) 647-2937
Fax(671) 649-0145
Organization SubpartNo
Authorized OfficialLillian Q Perez PosadasHospital Administrator, Ceo · (671) 647-2104
Enumeration DateNovember 29, 2006
Last NPPES UpdateOctober 20, 2020
NPPES CertifiedOctober 20, 2020
✔ NPI 1366519027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral Acute Care HospitalHospitals
Taxonomy Code282N00000X
License✔ Licensed in GU · 650001
Definition
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity.

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Guam Memorial Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

317

Medicare enrollment records show 317 clinicians reassign Medicare billing to Guam Memorial Hospital, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 31

Internal Medicine77
Diagnostic Radiology73
Emergency Medicine39
Pediatric Medicine20
Family Practice13
Obstetrics/Gynecology11
General Surgery10
Cardiovascular Disease (Cardiology)9
23 other specialties65

Nearest to this location (20)

See all 317
Ibrahim Aburiziq, M.D
Pathology
NPI 1134359771
1415 TULANE AVE
New Orleans, LA 70112
(504) 988-5263
✔ PECOS✔ Accepts Medicare
Joleen Aguon, M.D.
Pulmonary Disease
NPI 1730483223
458 S MARINE CORPS DR UNIT WH-3
Tamuning, GU 96913
(671) 686-5864
✔ PECOS✔ Accepts Medicare
Akua Agyeman, MD PHD
Internal Medicine
NPI 1831377688
1319 PUNAHOU ST
Honolulu, HI 96826
(808) 321-3384
✔ PECOS✔ Accepts Medicare
Fatmah Albaaj, MD
Family Practice
NPI 1023373081
433 W HIGH ST
Bryan, OH 43506
(419) 636-1131
✔ PECOS✔ Accepts Medicare
Samir Ambrale, MD
Hematology/Oncology
NPI 1780990382
548 MARINE CORPS DR
Tamuning, GU 96913
(671) 646-5825
✔ PECOS✔ Accepts Medicare
Deidre Anastas, MD
Cardiovascular Disease (Cardiology)
NPI 1265827596
601 ELMWOOD AVE
Rochester, NY 14642
(585) 275-2820
✔ PECOS✔ Accepts Medicare
Palaniappan Annamalai, MD
Interventional Radiology
NPI 1972529584
1150 NW 14TH ST STE 702
Miami, FL 33136
(305) 243-6732
✔ PECOS✔ Accepts Medicare
John Anton, MD
Diagnostic Radiology
NPI 1508860438
1538 KANAWHA BLVD E
Charleston, WV 25311
(304) 344-3457
✔ PECOS
Timothy Arakawa, MD, PHD
Endocrinology
NPI 1841421229
3615 NW SAMARITAN DR STE G2
Corvallis, OR 97330
(541) 768-7900
✔ PECOS✔ Accepts Medicare
Martin Arrisueno, M.D.
Emergency Medicine
NPI 1427124114
336 FORT PICKENS RD APT W109
Pensacola Beach, FL 32561
(202) 257-4721
✔ PECOS✔ Accepts Medicare
Russel Aubin, D.O.
Anesthesiology
NPI 1255690517
850 CAROLS CAMACHO RD GMHA - ANESTHESIA DEPARTMENT
Tamuning, GU 96913
(671) 647-2554
✔ PECOS✔ Accepts Medicare
Badreldin Bedri, MD
Pediatric Medicine
NPI 1558599407
1500 COOPER ST
Fort Worth, TX 76104
(682) 885-4260
✔ PECOS✔ Accepts Medicare
Kirsten Blomberg, CNM
Certified Nurse Midwife (CNM)
NPI 1396243366
340 BOULEVARD NE STE 103
Atlanta, GA 30312
(404) 622-9810
✔ PECOS
Teresa Borja, DPM
Podiatry
NPI 1558338509
122 TUN JOSE TOVES WAY
Tamuning, GU 96913
(671) 649-3338
✔ PECOS✔ Accepts Medicare
Gillian Brennan
Pediatric Neonatology
NPI 1174782437
5841 S MARYLAND AVE
Chicago, IL 60637
(888) 824-0200
✔ PECOS
Elaine Brown, M.D.
Obstetrics/Gynecology
NPI 1427095645
2601 DIMMITT RD
Plainview, TX 79072
(806) 296-5531
✔ PECOS✔ Accepts Medicare
Jared Carlson, M.D.
General Surgery
NPI 1073775284
3925 SHERIDAN DR
Amherst, NY 14226
(716) 250-9999
✔ PECOS✔ Accepts Medicare
Moshe Cohn, MD
Pediatric Critical Care
NPI 1033406400
175 CEDAR LN STE 5
Teaneck, NJ 07666
(201) 509-2932
✔ PECOS
Ramona Domen, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1871585547
NAVAL HOSPITAL GUAM ANESTHESIA DEPT
Fpo, AP 96538
(671) 344-9304
✔ Accepts Medicare
Frank Farrell, M.D.
Gastroenterology
NPI 1891770905
2186 GEARY BLVD SUITE 320
San Francisco, CA 94115
(415) 749-6900
✔ PECOS✔ Accepts Medicare
See all 317 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 65D0929515

Guam Memorial Hospital Authority · Tamuning, GU
Active · expires Jun 15, 2027
CLIA Number65D0929515
Laboratory TypeHospital
Certificate Effective DateJune 16, 2025
Certificate Expiration DateJune 15, 2027
Laboratory DirectorDr. Caleb King
Laboratory Phone(671) 647-2282
Laboratory LocationGuam Memorial Hospital Authority850 Gov Carlos Camacho Road, Tamuning, GU 96913
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Accreditation 65D0675318

Guam Memorial Hospital Authority Clinical Laboratory · Tamuning, GU
Active · expires Mar 11, 2027
CLIA Number65D0675318
Laboratory TypeHospital
Certificate Effective DateMarch 12, 2025
Certificate Expiration DateMarch 11, 2027
Laboratory DirectorDr. Caleb King
Laboratory Phone(671) 647-2476
Laboratory LocationGuam Memorial Hospital Authority Clinical Laboratory850 Gov Carlos G Camacho Rd, Tamuning, GU 96913
CLIA data matches this NPI record on: Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Hospital Quality Ratings CMS Care Compare

Quality and patient-experience ratings for Guam Memorial Hospital Authority (CMS certification number 650001), from CMS Care Compare.

Guam Memorial Hospital Authority

Acute Care Hospitals · Tamuning, GU
2/5 CMS Overall Rating
OwnershipGovernment - Local
CMS Certification Number650001
Location85O Gov Carlos G Camacho RoadTamuning, GU 96913 · Guam County · (671) 647-2552
Emergency services

Complications & Deaths 5

Death rate for heart attack patients
13.8% No different than national
Death rate for COPD patients
9.9% No different than national
Death rate for heart failure patients
12.1% No different than national
Death rate for pneumonia patients
21.3% No different than national
Death rate for stroke patients
16.5% No different than national

Unplanned Hospital Visits 12

Hospital return days for heart attack patients
56 more days than average per 100 discharges
Hospital return days for heart failure patients
126 more days than average per 100 discharges
Hospital return days for pneumonia patients
61 more days than average per 100 discharges
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)
48 No different than national
Rate of inpatient admissions for patients receiving outpatient chemotherapy
Cases too small to report
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy
Cases too small to report

Timely & Effective Care 6

Percentage of healthcare personnel who are up to date with COVID-19 vaccinations
98.4%
Healthcare workers given influenza vaccination
55%
Average (median) time patients spent in the emergency department before leaving from the visit A lower number of minutes is better
154 minutes
Appropriate care for severe sepsis and septic shock
17%
Severe Sepsis 3-Hour Bundle
83%
Severe Sepsis 6-Hour Bundle
21%

Maternal Health 1

Elective Delivery
545%

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 Guam Memorial Hospital's NPI number?

The NPI number for Guam Memorial Hospital is 1366519027. It was assigned to this organization in the NPPES registry on November 29, 2006.

Where is Guam Memorial Hospital located?

Guam Memorial Hospital is located at 850 Governor Carlos Camacho Road, Oka Tamuning, GU 96913. The listed phone number is (671) 647-2937.

What is Guam Memorial Hospital's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.

Is Guam Memorial Hospital enrolled in Medicare?

Yes. Guam Memorial Hospital is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Guam Memorial Hospital?

According to the CMS Revalidation Reassignment List (October 2026 release), 317 clinicians in 31 Medicare specialties reassign their Medicare billing to Guam Memorial Hospital. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (77), Diagnostic Radiology (73) and Emergency Medicine (39). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Guam Memorial Hospital hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

Is Guam Memorial Hospital a Medicare-certified hospital?

Yes. Guam Memorial Hospital Authority is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does Guam Memorial Hospital have?

CMS rates Guam Memorial Hospital Authority 2 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.

When was this NPI record last updated?

The NPPES record for Guam Memorial Hospital was last updated on October 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.