John T. Haggerty, D.O.
Emergency Medicine Physician · Agana Heights, GU
John T. Haggerty, D.O. is an emergency medicine physician with a practice address in Agana Heights, Guam, and NPI 1427395326, issued on Jan 11, 2013. Check the license (Guam DO-0125, as entered in NPPES) with the Guam board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John T. Haggerty
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- DO-0125 GU
DO.OP.61664564 WA
0102203889 VA
Self-reported in NPPES; status is on the state search - Practice location
- Bldg 50, Farenholt Ave, Agana Heights, GU 96910
- Phone
- (671) 344-9340
- Enumerated
- Jan 11, 2013
- Record last updated
- Aug 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20250618002607); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 29 in Guam → Look up another NPI →
Also registered at Bldg 50, Farenholt Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica ArrottEmergency Medicine Physician1902365737
- Nicholas Brandes, PAPhysician Assistant1144660929
- Brittney Gardner, AUDAudiologist1982271011
- Eric Lopez, PHYSICIAN ASSISTANTPhysician Assistant1730348087
Verify John T. Haggerty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Guam board licenses this profession
Search for license DO-0125Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $84.60
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Spokane Emergency Care Physicians PLLCSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John T. Haggerty among 29 emergency medicine physician records in Guam
John T. Haggerty, D.O. is one of 29 emergency medicine physician records with a practice address in Guam. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 52% of them.
- NPI issued2013 · 52% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2011 among the 21 with a school on file
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 emergency medicine physician records list a practice address in Agana Heights
They are 13 of the 146 NPPES records with a practice address in Agana Heights, and 29 emergency medicine physician records in Guam.
All 29 in Guam → Every provider in Agana Heights → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Maria Jose Araujo, MDAgana Heights, GU 969101902499288
- Jessica ArrottAgana Heights, GU 969101902365737
- Ruth Compton, DOTutuhan, GU 969101831484047
- Taylor Desrosiers, MD, MBAAgana Heights, GU 969101205176773
- John Hunt, M.D.Agana Heights, GU 969101487004099
- Michael Laroy, DOAgana Heights, GU 969101598295214
- Daniel Neren, MDAgana Heights, GU 969101568025013
- Alexander Salazar, M.D.Agana Heights, GU 969101265845507
Common questions
What is John T. Haggerty, D.O.'s NPI number?
John T. Haggerty, D.O.'s National Provider Identifier (NPI) is 1427395326, issued on Jan 11, 2013. An NPI identifies a provider in billing; it is not a license.
Where is John T. Haggerty, D.O. located?
The NPPES record lists a practice address at Bldg 50, Farenholt Ave, Agana Heights, GU, 96910. Phone: (671) 344-9340. Providers update this record themselves, so call before visiting.
How can I verify John T. Haggerty, D.O.'s license?
NPPES lists Guam license number DO-0125, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.