Dr John T Haggerty, DO - Medicare Emergency Medicine in Agana Heights, GU

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Dr John T Haggerty, DO is a medicare enrolled "Emergency Medicine" physician in Agana Heights, Guam. His current practice location is Bldg 50, Farenholt Ave, Agana Heights, Guam. You can reach out to his office (for appointments etc.) via phone at (671) 344-9340.

Dr John T Haggerty is licensed to practice in Washington (license number DO.OP.61664564) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1427395326.

Contact Information

Dr John T Haggerty, DO
Bldg 50, Farenholt Ave,
Agana Heights, GU 96910
(671) 344-9340
Not Available

Map and Direction




Physician's Profile

Full NameDr John T Haggerty
GenderMale
SpecialityEmergency Medicine
LocationBldg 50, Farenholt Ave, Agana Heights, Guam
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1427395326
  • Provider Enumeration Date: 01/11/2013
  • Last Update Date: 08/06/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7214301613
  • Enrollment ID: I20240104001957

Medical Identifiers

Medical identifiers for Dr John T Haggerty such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427395326NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine DO-0125 (Guam)Secondary
207P00000XEmergency Medicine 0102203889 (Virginia)Secondary
207P00000XEmergency Medicine DO.OP.61664564 (Washington)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John T Haggerty allows following entities to bill medicare on his behalf.
Entity NameGuam Healthcare Development Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326447939
PECOS PAC ID: 9234351776
Enrollment ID: O20150326000266

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr John T Haggerty is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John T Haggerty, DO
800 W 5th Ave,
Spokane, WA 99204-2803

Ph: () -		Dr John T Haggerty, DO
Bldg 50, Farenholt Ave,
Agana Heights, GU 96910

Ph: (671) 344-9340

Reviews and Comments


Emergency Medicine Doctors in Agana Heights, GU

Mallori Marie Wilson,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: U.s. Naval Hospital Guam, Agana Heights, GU 96910
Phone: 671-344-9340    
Grant Michael Wallenfelsz, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: Bldg #50 Farenholt Ave, Agana Heights, GU 96910
Phone: 671-344-9340    
Dr. Thomas C Baugh, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: U.s. Naval Hospital Guam, Farenholt Street, Building K-1, Agana Heights, GU 96919
Phone: 671-344-9232    
Dr. Alexander Janson Salazar, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: Farenholt Ave, Bldg 50, Agana Heights, GU 96910
Phone: 671-344-9232    
Dr. Christopher Boyd Chisholm, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Us Naval Hospital Guam, Farenholt Ave Bld K1, Agana Heights, GU 96919
Phone: 671-344-9619    
Daniel Rupert Neren, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: U.s. Naval Hospital Guam, Bldg 50, Farenholt Ave, Agana Heights, GU 96910
Phone: 671-344-9340    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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