NPPES file of Aug 9, 2026

Rosemary Siobhan Browne, M.D.

Geriatric Medicine (Internal Medicine) Physician · Tucson, AZ

Rosemary Siobhan Browne, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Tucson, Arizona, and NPI 1508808502, issued on Jun 12, 2006. Check the license (Arizona 21381, 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
1508808502
Name
Rosemary Siobhan Browne
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
21381 AZ
Self-reported in NPPES; status is on the state search
Practice location
4821 N Stone Ave, Tucson, AZ 85704
Phone
(520) 314-3300
Enumerated
Jun 12, 2006
Record last updated
Jun 7, 2023
Medicaid ID
140202 AZ
Medicare enrollment
Enrolled (PECOS I20070529000229); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1986
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 4821 N Stone Ave

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

  1. Michael Angell, PHARMDPharmacist1497528376
  2. Demetrius Barnes, DPMFoot & Ankle Surgery Podiatrist1619383510
  3. Robert Beren, M.D.Family Medicine Physician1295810653
  4. Kenneth Blocher, D.P.M.Foot Surgery Podiatrist1992745327
  5. Satyapriya Chaudhary, M.DInternal Medicine Physician1861729303
  6. Laura De La Torre, MDFamily Medicine Physician1043230097

Verify Rosemary Siobhan Browne in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 21381    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

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68% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,353 Medicare Part D claims for 108 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Rosemary Browne1,353
  2. Specialty average4,246

Most prescribed

  1. Levothyroxine Sodium72 claims
  2. Trazodone Hcl62 claims
  3. Sertraline Hcl61 claims
  4. Amlodipine Besylate59 claims
  5. Atorvastatin Calcium59 claims
  6. Losartan Potassium40 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

  1. Carelon Medical Partners OF Arizona PCTucson, AZ

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

Geriatric Medicine (Internal Medicine) Physician providers in Arizona

There are 65 geriatric medicine (internal medicine) physician records in Arizona.

All 65 in Arizona → Every provider in Tucson →

Other geriatric medicine (internal medicine) physician records in Arizona

  1. Anwar Abdel-Rahman, M.D.Scottsdale, AZ1689679771
  2. Gamal Aboul-Nasr, MDMesa, AZ1104850288
  3. Anurag Adhikari, M.D.Phoenix, AZ1861137952
  4. Talissa Adkison, M.DPhoenix, AZ1114040862
  5. Raehan Ahmed, DOPhoenix, AZ1821787177
  6. Holly Ahner, MDTucson, AZ1073621801
  7. Maressa Alejandro Reyes, MDTucson, AZ1750328969
  8. Jeanette Anderson, MDGlendale, AZ1104878875
  9. Kareem Bannis, M.D.Mesa, AZ1134569494
  10. Maria Bellantoni, MDPhoenix, AZ1689162307

Common questions

What is Rosemary Siobhan Browne, M.D.'s NPI number?

Rosemary Siobhan Browne, M.D.'s National Provider Identifier (NPI) is 1508808502, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rosemary Siobhan Browne, M.D. located?

The NPPES record lists a practice address at 4821 N Stone Ave, Tucson, AZ, 85704. Phone: (520) 314-3300. Providers update this record themselves, so call before visiting.

How can I verify Rosemary Siobhan Browne, M.D.'s license?

NPPES lists Arizona license number 21381, 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 Rosemary Siobhan Browne, M.D. prescribe under Medicare Part D?

In 2024, Rosemary Siobhan Browne, M.D. had 1,353 Medicare Part D claims for 108 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

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.