Sarah Marie Upson, MD
Critical Care Medicine (Internal Medicine) Physician · Tucson, AZ
Sarah Marie Upson, MD is a critical care medicine (internal medicine) physician with a practice address in Tucson, Arizona, and NPI 1639675127, issued on Apr 3, 2018. Check the license (Arizona 63329, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sarah Marie Upson
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 63329 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5301 E Grant RD, Tucson, AZ 85712
- Phone
- (520) 324-5461
- Enumerated
- Apr 3, 2018
- Record last updated
- Jul 15, 2024
- Fax
- (520) 324-1406
- Medicare enrollment
- Enrolled (PECOS I20240722003528); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 180 in Arizona → Look up another NPI →
Also registered at 5301 E Grant RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Seyedeh Atiyeh Afjei, MDStudent in an Organized Health Care Education/Training Program1477356160
- Chiamaka Agu, PHARMDStudent in an Organized Health Care Education/Training Program1215723820
- Edgar Aguayo, MDStudent in an Organized Health Care Education/Training Program1174325245
- Rand Al-Ani, MDStudent in an Organized Health Care Education/Training Program1528908928
Verify Sarah Marie Upson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 63329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Tmc Medical NetworkTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Marie Upson among 180 critical care medicine (internal medicine) physician records in Arizona
Sarah Marie Upson, MD is one of 180 critical care medicine (internal medicine) physician records with a practice address in Arizona. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 4% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2018 · median 2007 among the 155 with a school on file
- Record last updated2024 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Arizona
There are 180 critical care medicine (internal medicine) physician records in Arizona.
All 180 in Arizona → Every provider in Tucson → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Erick Perez Sifontes, MDTucson, AZ 857121144725904
- Kelly Wickstrom, D.O.Tucson, AZ 857121083092589
- Richard Ciezki, M.D.Tucson, AZ 857111669834537
- Wesley Cook, MDTucson, AZ 857111780894667
- Dean Prater, MDTucson, AZ 857111942382692
- Husnain WaseemTucson, AZ 857111750834032
- Antara Mallampalli, MDTucson, AZ 857101992885396
- Brian Shon, MDTucson, AZ 857101508858739
Common questions
What is Sarah Marie Upson, MD's NPI number?
Sarah Marie Upson, MD's National Provider Identifier (NPI) is 1639675127, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Marie Upson, MD located?
The NPPES record lists a practice address at 5301 E Grant RD, Tucson, AZ, 85712. Phone: (520) 324-5461. Providers update this record themselves, so call before visiting.
How can I verify Sarah Marie Upson, MD's license?
NPPES lists Arizona license number 63329, 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. 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.