NPPES file of Aug 9, 2026

Vinicius Knabben, M.D.

Emergency Medicine Physician · Winslow, AZ

Vinicius Knabben, M.D. is an emergency medicine physician with a practice address in Winslow, Arizona, and NPI 1558718619, issued on May 18, 2016. Check the license (Arizona 58256, 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
1558718619
Name
Vinicius Knabben
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
58256 AZ
Self-reported in NPPES; status is on the state search
Practice location
1501 N Williamson Ave, Winslow, AZ 86047
Phone
(928) 289-4691
Enumerated
May 18, 2016
Record last updated
Dec 11, 2025
Medicaid ID
529678 AZ
Medicare enrollment
Enrolled (PECOS I20190628000236); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2016
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 1501 N Williamson Ave

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

  1. Ralph Day, MDEmergency Medicine Physician1184648255
  2. Bryan Feinstein, MDEmergency Medicine Physician1417419771
  3. William Kvien, MDEmergency Medicine Physician1235148784
  4. Dale NortonFamily Nurse Practitioner1205553245
  5. Caterina Palumbo, MDEmergency Medicine Physician1033557400
  6. Thayer Phelan, MDEmergency Medicine Physician1821209354

Verify Vinicius Knabben in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 58256
    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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2% fewer Medicare Part D claims than the average emergency medicine physician in 2024

222 Medicare Part D claims for 166 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 28 claims were for opioids.

  1. Vinicius Knabben222
  2. Specialty average226

Most prescribed

  1. Prednisone19 claims
  2. Cephalexin18 claims
  3. Sulfamethoxazole-Trimethoprim16 claims
  4. Cyclobenzaprine Hcl15 claims
  5. Azithromycin13 claims
  6. Amoxicillin-Clavulanate Potass12 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. Innova Emergency Medical Associates PCWinslow, AZ

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

Vinicius Knabben among 1,494 emergency medicine physician records in Arizona

Vinicius Knabben, 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 2016, is newer than 67% of them.

  • NPI issued2016 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2016 · 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).

8 emergency medicine physician records list a practice address in Winslow

They are 8 of the 259 NPPES records with a practice address in Winslow, and 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Ralph Day, MDWinslow, AZ 860471184648255
  2. Bryan Feinstein, MDWinslow, AZ 860471417419771
  3. William Kvien, MDWinslow, AZ 860471235148784
  4. Caterina Palumbo, MDWinslow, AZ 860471033557400
  5. Thayer Phelan, MDWinslow, AZ 860471821209354
  6. Jordan Price, DOWinslow, AZ 860471780179259
  7. Jason Taylor, DOWinslow, AZ 860471003908195
  8. Dana Ger, M.D.Williams, AZ 860461780694802

Common questions

What is Vinicius Knabben, M.D.'s NPI number?

Vinicius Knabben, M.D.'s National Provider Identifier (NPI) is 1558718619, issued on May 18, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Vinicius Knabben, M.D. located?

The NPPES record lists a practice address at 1501 N Williamson Ave, Winslow, AZ, 86047. Phone: (928) 289-4691. Providers update this record themselves, so call before visiting.

How can I verify Vinicius Knabben, M.D.'s license?

NPPES lists Arizona license number 58256, 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 Vinicius Knabben, M.D. prescribe under Medicare Part D?

In 2024, Vinicius Knabben, M.D. had 222 Medicare Part D claims for 166 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.