NPPES file of Aug 9, 2026

Marie Louise Olson, MD

Emergency Medicine Physician · Tucson, AZ

Marie Louise Olson, MD is an emergency medicine physician with a practice address in Tucson, Arizona, and NPI 1386726313, issued on Oct 19, 2006. Check the license (Arizona 23709, as entered in NPPES) on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1386726313
Name
Marie Louise Olson
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
23709 AZ
Self-reported in NPPES; status is on the state search
Practice location
1501 N Campbell Ave, Tucson, AZ 85724
Phone
(520) 626-6614
Enumerated
Oct 19, 2006
Record last updated
Apr 18, 2025
Fax
(520) 626-2883
Medicaid ID
338477-04 AZ
Medicare enrollment
Enrolled (PECOS I20251118003996); may accept Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1994
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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8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →

Also registered at 1501 N Campbell Ave

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

  1. Alexa Aaronson, MDPediatrics Physician1427793652
  2. Mohammed Abbas, MDOrthopaedic Surgery Physician1003437872
  3. Josephine Acuna, M.DEmergency Medicine Physician1710325287
  4. Rodney Adam, MDInfectious Disease Physician1548249485
  5. Matthew Adams, D.O.Infectious Disease Physician1578941720
  6. Elana Addis, M.DObstetrics & Gynecology Physician1730150582

Verify Marie Louise Olson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 23709    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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Marie Louise Olson among 1,494 emergency medicine physician records in Arizona

Marie Louise Olson, MD 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 not. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 62% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1994 · median 2014 among the 828 with a school on file
  • Record last updated2025 · 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).

422 emergency medicine physician records list a practice address in Tucson

They are 422 of the 18,788 NPPES records with a practice address in Tucson, and 1,494 emergency medicine physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,494 in Arizona → Every provider in Tucson → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Daniel Beskind, MDTucson, AZ 857241699747337
  2. Lisa Chan, MDTucson, AZ 857241104899251
  3. Albert Fiorello, MDTucson, AZ 857241962475897
  4. John Guisto, MDTucson, AZ 857241003881798
  5. Kenneth Iserson, MDTucson, AZ 857241609841238
  6. Samuel Keim, MDTucson, AZ 857241134194616
  7. Harvey Meislin, MDTucson, AZ 857241043301674
  8. John Sakles, MDTucson, AZ 857241558431924

Common questions

What is Marie Louise Olson, MD's NPI number?

Marie Louise Olson, MD's National Provider Identifier (NPI) is 1386726313, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marie Louise Olson, MD located?

The NPPES record lists a practice address at 1501 N Campbell Ave, Tucson, AZ, 85724. Phone: (520) 626-6614. Providers update this record themselves, so call before visiting.

How can I verify Marie Louise Olson, MD's license?

NPPES lists Arizona license number 23709, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.