Spencer Reid Anderson, M.D.
Emergency Medicine Physician · Flagstaff, AZ
Spencer Reid Anderson, M.D. is an emergency medicine physician with a practice address in Flagstaff, Arizona, and NPI 1720252158, issued on Apr 16, 2008. Check the license (Arizona 44283, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Spencer Reid Anderson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 44283 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1200 N Beaver St, Flagstaff, AZ 86001
- Phone
- (928) 774-1693
- Enumerated
- Apr 16, 2008
- Record last updated
- Mar 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20260227002765); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2008
- 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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Verify Spencer Reid Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 44283Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average emergency medicine physician in 2024
166 Medicare Part D claims for 103 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin20 claims
- Mupirocin18 claims
- Ondansetron Odt17 claims
- Ibuprofen15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 70.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospitals and group practices
- Fedko Emergency Physicians New Mexico, LLCGrants, NM
- Tuba City Regional Health Care CorporationTuba City, AZ · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Spencer Reid Anderson among 1,494 emergency medicine physician records in Arizona
Spencer Reid Anderson, M.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 2008, is newer than 44% of them.
- NPI issued2008 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2008 · median 2014 among the 828 with a school on file
- Record last updated2012 · 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 Spencer Reid Anderson, M.D.'s NPI number?
Spencer Reid Anderson, M.D.'s National Provider Identifier (NPI) is 1720252158, issued on Apr 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Reid Anderson, M.D. located?
The NPPES record lists a practice address at 1200 N Beaver St, Flagstaff, AZ, 86001. Phone: (928) 774-1693. Providers update this record themselves, so call before visiting.
How can I verify Spencer Reid Anderson, M.D.'s license?
NPPES lists Arizona license number 44283, 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 Spencer Reid Anderson, M.D. prescribe under Medicare Part D?
In 2024, Spencer Reid Anderson, M.D. had 166 Medicare Part D claims for 103 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Spencer Reid Anderson, M.D.'s MIPS final score?
The 2023 MIPS final score is 70.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.