Doctor profile · Federal record

Dr. Kathryn Guffrey, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Dededo, GU

  • NPI 1144512252
  • Accepts Medicare
  • 15 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
113 Route 3, Grmc, Emergency Department
Dededo, GU 96912
(671) 645-5500
Mailing address
Po Box 3830, Grmc, Credentialing
Hagatna, GU 969323830

Credentials & registration

NPPES · NUCC
NPI registered
May 2011 — 15 yrs on file
Profile last updated
September 23, 2016
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
North Carolina #2014-01513 · Guam #M-1990

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144512252. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
654
Distinct HCPCS
6
Medicare allowed
$84,148
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 291 288 $185
99284 Emergency department visit with moderate level of medical decision making 140 138 $127
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 120 116 $8
99283 Emergency department visit with low level of medical decision making 64 64 $76
99291 Critical care, first 30-74 minutes 28 28 $222
99282 Emergency department visit with straightforward medical decision making 11 11 $44

In context: peer comparison

Among 2 peers in this city , average services per provider: 112. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
88
Patients
88
Total drug cost
$417
Drug Type Claims Patients Total cost
Ondansetron Hcl Generic 30 30 $160
Cephalexin Generic 28 28 $163
Oxycodone Hcl Generic 18 18 $45
Prednisone Generic 12 12 $50

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathryn Guffrey's medical specialty?
Dr. Kathryn Guffrey practices Emergency Medicine Physician in Dededo, GU.
Where does Dr. Kathryn Guffrey practice?
Dr. Kathryn Guffrey practices at 113 Route 3, Dededo, GU 96912. Office phone: 6716455500.
What is Dr. Kathryn Guffrey's NPI?
Dr. Kathryn Guffrey's National Provider Identifier (NPI) is 1144512252, issued by NPPES.
Does Dr. Kathryn Guffrey accept Medicare assignment?
Yes. Dr. Kathryn Guffrey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathryn Guffrey commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.