Doctor profile · Federal record

Dr. Nathan Whitfield, M.D., PH.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Flagstaff, AZ

  • NPI 1023308665
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1200 N Beaver St
Flagstaff, AZ 860013118
(928) 214-3930
Mailing address
1600 W University Ave Ste 215
Flagstaff, AZ 860013115

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
September 2, 2015
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Arizona #49409

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023308665. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
417
Distinct HCPCS
6
Medicare allowed
$54,594
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 200 198 $171
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 82 77 $8
99284 Emergency department visit with moderate level of medical decision making 59 59 $117
99291 Critical care, first 30-74 minutes 36 35 $207
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 27 27 $168
99283 Emergency department visit with low level of medical decision making 13 13 $70

In context: peer comparison

Among 12 peers in this city , average services per provider: 74. This provider delivers 5.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
52
Patients
52
Total drug cost
$379
Drug Type Claims Patients Total cost
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 18 18 $62
Cephalexin Generic 17 17 $160
Ondansetron Odt (Ondansetron) Brand 17 17 $158

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathan Whitfield's medical specialty?
Dr. Nathan Whitfield practices Emergency Medicine Physician in Flagstaff, AZ.
Where does Dr. Nathan Whitfield practice?
Dr. Nathan Whitfield practices at 1200 N Beaver St, Flagstaff, AZ 860013118. Office phone: 9282143930.
What is Dr. Nathan Whitfield's NPI?
Dr. Nathan Whitfield's National Provider Identifier (NPI) is 1023308665, issued by NPPES.
Does Dr. Nathan Whitfield accept Medicare assignment?
Yes. Dr. Nathan Whitfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Whitfield commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.