NPPES file of Aug 9, 2026

Robert Windisch, MD

Internal Medicine Physician · Phoenix, AZ

Robert Windisch, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1447819214, issued on Jun 6, 2019. Check the license (Arizona 66809, 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
1447819214
Name
Robert Windisch
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
66809 AZ
Self-reported in NPPES; status is on the state search
Practice location
250 E Dunlap Ave, Phoenix, AZ 85020
Phone
(602) 445-0751
Enumerated
Jun 6, 2019
Record last updated
Jul 15, 2022
Fax
(602) 424-8128
Medicare enrollment
Enrolled (PECOS I20220726003554); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2019
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 250 E Dunlap Ave

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

  1. Celina Acevedo-Adams, AGACNP-BCAcute Care Nurse Practitioner1235700949
  2. Judith Aikawa, MDInternal Medicine Physician1548296056
  3. Ronald Aikawa, MDInternal Medicine Physician1225067564
  4. Hossam Alhabach, M.D.Neurology Physician1578527701
  5. Logan ArchambaultInternal Medicine Physician1235759937
  6. Kevin Asady, MDInternal Medicine Physician1033868740

Verify Robert Windisch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 66809
    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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90% fewer Medicare Part D claims than the average internal medicine physician in 2024

322 Medicare Part D claims for 122 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 34 claims were for opioids.

  1. Robert Windisch322
  2. Specialty average3,176

Most prescribed

  1. Ondansetron Odt36 claims
  2. Oxycodone Hcl27 claims
  3. Atorvastatin Calcium13 claims
  4. Amlodipine Besylate12 claims
  5. Naloxone Hcl11 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.

Industry payments in 2024: $238.62

3 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Windisch$238.62
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Affiliated Hospitalists PLCPhoenix, AZ

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

Robert Windisch among 2,853 internal medicine physician records in Arizona

Robert Windisch, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 79% of them.

  • NPI issued2019 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2019 · median 2003 among the 1,643 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

695 internal medicine physician records list a practice address in Phoenix

They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mario Avila, MDPhoenix, AZ 850201740273911
  2. Dianna Bastian, M.D.Phoenix, AZ 850201700869476
  3. John Hortareas, DOPhoenix, AZ 850201376536193
  4. Amy Lee, MDPhoenix, AZ 850201699760751
  5. Alfredo Lim, M.D.Phoenix, AZ 850201225002371
  6. Steven Parker, M.D.Phoenix, AZ 850201841287794
  7. Christopher Perez, M.D.Phoenix, AZ 850201437144318
  8. Kevan Pickrel, MDPhoenix, AZ 850201568455384

Common questions

What is Robert Windisch, MD's NPI number?

Robert Windisch, MD's National Provider Identifier (NPI) is 1447819214, issued on Jun 6, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Robert Windisch, MD located?

The NPPES record lists a practice address at 250 E Dunlap Ave, Phoenix, AZ, 85020. Phone: (602) 445-0751. Providers update this record themselves, so call before visiting.

How can I verify Robert Windisch, MD's license?

NPPES lists Arizona license number 66809, 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 Robert Windisch, MD prescribe under Medicare Part D?

In 2024, Robert Windisch, MD had 322 Medicare Part D claims for 122 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.