Nathan Lawrence Whitfield, M.D., PH.D.
Emergency Medicine Physician · Flagstaff, AZ
Nathan Lawrence Whitfield, M.D., PH.D. is an emergency medicine physician with a practice address in Flagstaff, Arizona, and NPI 1023308665, issued on Apr 17, 2011. Check the license (Arizona 49409, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nathan Lawrence Whitfield
- Credential
- M.D., PH.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 49409 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1200 N Beaver St, Flagstaff, AZ 86001
- Phone
- (928) 214-3930
- Enumerated
- Apr 17, 2011
- Record last updated
- Sep 2, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140801001707); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 1200 N Beaver St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amit Agrawal, M.D.Neonatal-Perinatal Medicine Physician1306032701
- Muhammad Ali, MDCritical Care Medicine (Internal Medicine) Physician1801264353
- Kim AllenSpeech-Language Pathologist1356580484
- Bianca Anderson, MS, RDRegistered Dietitian1548609431
Verify Nathan Lawrence Whitfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 49409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average emergency medicine physician in 2024
181 Medicare Part D claims for 125 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 12 claims were for opioids.
Most prescribed
- Cephalexin29 claims
- Ondansetron Odt14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Flagstaff Emergency PhysiciansFlagstaff, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Lawrence Whitfield among 1,494 emergency medicine physician records in Arizona
Nathan Lawrence Whitfield, M.D., PH.D. is one of 1,494 emergency medicine physician records with a practice address in Arizona. 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 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2011 · median 2014 among the 828 with a school on file
- Record last updated2015 · 55% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 emergency medicine physician records list a practice address in Flagstaff
They are 49 of the 2,419 NPPES records with a practice address in Flagstaff, and 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Flagstaff → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Carrie Burns, M.D.Flagstaff, AZ 860011891875746
- Charles Coffman, M.D.Flagstaff, AZ 860011972584779
- Kevin Conn, M.D.Flagstaff, AZ 860011104995638
- Jennifer Conn, M.D.Flagstaff, AZ 860011811067804
- Jeffrey Daniel, M.DFlagstaff, AZ 860011538118385
- Michael Earl, M.D.Flagstaff, AZ 860011720161250
- James Hayes, M.D.Flagstaff, AZ 860011285703215
- Sarah Hsia, M.D.Flagstaff, AZ 860011477609469
Common questions
What is Nathan Lawrence Whitfield, M.D., PH.D.'s NPI number?
Nathan Lawrence Whitfield, M.D., PH.D.'s National Provider Identifier (NPI) is 1023308665, issued on Apr 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Lawrence Whitfield, M.D., PH.D. located?
The NPPES record lists a practice address at 1200 N Beaver St, Flagstaff, AZ, 86001. Phone: (928) 214-3930. Providers update this record themselves, so call before visiting.
How can I verify Nathan Lawrence Whitfield, M.D., PH.D.'s license?
NPPES lists Arizona license number 49409, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathan Lawrence Whitfield, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Nathan Lawrence Whitfield, M.D., PH.D. had 181 Medicare Part D claims for 125 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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.