NPPES file of Aug 9, 2026

Tamara Marie Armstrong, M.D.

Emergency Medicine Physician · Phoenix, AZ

Tamara Marie Armstrong, M.D. is an emergency medicine physician with a practice address in Phoenix, Arizona, and NPI 1205369535, issued on Apr 4, 2017. Check the license (Arizona 57644, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205369535
Name
Tamara Marie Armstrong
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
57644 AZ
Self-reported in NPPES; status is on the state search
Practice location
2601 E Roosevelt St, Phoenix, AZ 85008
Phone
(602) 344-5011
Enumerated
Apr 4, 2017
Record last updated
Oct 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211018002715); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2601 E Roosevelt St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amjed Abdel Al, MDStudent in an Organized Health Care Education/Training Program1043151400
  2. Shelley Abdel-Sayed, M.D.Anesthesiology Physician1609079490
  3. Baha Abdelrahim, DOStudent in an Organized Health Care Education/Training Program1205531795
  4. Yasir Abdulqader, MDHospitalist Physician1184955395
  5. Iman Aboalam, PHARMDPharmacist1477422384
  6. Norberto Adame, MDEmergency Medicine Physician1144276213

Verify Tamara Marie Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 57644
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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64% fewer Medicare Part D claims than the average emergency medicine physician in 2024

82 Medicare Part D claims for 39 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Tamara Armstrong82
  2. Specialty average226

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

  1. Emergency Group OF Arizona Professional CorporationPhoenix, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tamara Marie Armstrong among 1,494 emergency medicine physician records in Arizona

Tamara Marie Armstrong, 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 2017, is newer than 70% of them.

  • NPI issued2017 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2017 · median 2014 among the 828 with a school on file
  • Record last updated2021 · 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).

394 emergency medicine physician records list a practice address in Phoenix

They are 394 of the 31,399 NPPES records with a practice address in Phoenix, and 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Norberto Adame, MDPhoenix, AZ 850081144276213
  2. Patricia Bayless, MDPhoenix, AZ 850081447206230
  3. Paul Blackburn, DOPhoenix, AZ 850081679527089
  4. Patrick Connell, MDPhoenix, AZ 850081932212834
  5. Michael Epter, DOPhoenix, AZ 850081992845887
  6. Bruce Horwood, MDPhoenix, AZ 850081801842406
  7. Kenneth Jackimczyk, MDPhoenix, AZ 850081598704058
  8. Eric Katz, MDPhoenix, AZ 850081619994175

Common questions

What is Tamara Marie Armstrong, M.D.'s NPI number?

Tamara Marie Armstrong, M.D.'s National Provider Identifier (NPI) is 1205369535, issued on Apr 4, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Tamara Marie Armstrong, M.D. located?

The NPPES record lists a practice address at 2601 E Roosevelt St, Phoenix, AZ, 85008. Phone: (602) 344-5011. Providers update this record themselves, so call before visiting.

How can I verify Tamara Marie Armstrong, M.D.'s license?

NPPES lists Arizona license number 57644, 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 Tamara Marie Armstrong, M.D. prescribe under Medicare Part D?

In 2024, Tamara Marie Armstrong, M.D. had 82 Medicare Part D claims for 39 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.