NPPES file of Aug 9, 2026

Alexander Michael Witkowski, MD, PHD

Dermatology Physician · Portland, OR

Alexander Michael Witkowski, MD, PHD is a dermatology physician with a practice address in Portland, Oregon, and NPI 1588212989, issued on Aug 28, 2019. Check the license (Oregon MF195494, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588212989
Name
Alexander Michael Witkowski
Credential
MD, PHD
Primary taxonomy
Dermatology Physician 207N00000X
License number
MF195494 OR
Self-reported in NPPES; status is on the state search
Practice location
3303 SW Bond Ave Ste 16, Portland, OR 97239
Phone
(503) 418-3376
Enumerated
Aug 28, 2019
Record last updated
Aug 28, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3303 SW Bond Ave Ste 16

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

  1. Julie Dhossche, MDDermatology Physician1023403284
  2. Rajan Kulkarni, M.D.Dermatology Physician1902040777
  3. Joanna Ludzik, MD, PHDDermatology Physician1720636053

Verify Alexander Michael Witkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MF195494
    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 Oregon license search

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97% fewer Medicare Part D claims than the average dermatology physician in 2024

22 Medicare Part D claims for 14 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Alexander Witkowski22
  2. Specialty average797

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.

The MIPS final score for 2023 (Medicare payment program): 97.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Alexander Michael Witkowski among 209 dermatology physician records in Oregon

Alexander Michael Witkowski, MD, PHD is one of 209 dermatology physician records with a practice address in Oregon. 82% 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 89% of them.

  • NPI issued2019 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2019 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Oregon

There are 209 dermatology physician records in Oregon.

The 8 dermatology physician records with the nearest ZIP codes

  1. Samuel Bremmer, M.D.Portland, OR 972391053553321
  2. Nicole Fett, MDPortland, OR 972391184682437
  3. Tracy Funk, MDPortland, OR 972391053536268
  4. Teri Greiling, MD, PHDPortland, OR 972391609168913
  5. Jon Hanifin, MDPortland, OR 972391336157882
  6. Rajan Kulkarni, M.D.Portland, OR 972391902040777
  7. Sabra Leitenberger, M.D.Portland, OR 972391528250727
  8. Lynne Morrison, MDPortland, OR 972391174538664

Common questions

What is Alexander Michael Witkowski, MD, PHD's NPI number?

Alexander Michael Witkowski, MD, PHD's National Provider Identifier (NPI) is 1588212989, issued on Aug 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Michael Witkowski, MD, PHD located?

The NPPES record lists a practice address at 3303 SW Bond Ave Ste 16, Portland, OR, 97239. Phone: (503) 418-3376. Providers update this record themselves, so call before visiting.

How can I verify Alexander Michael Witkowski, MD, PHD's license?

NPPES lists Oregon license number MF195494, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander Michael Witkowski, MD, PHD prescribe under Medicare Part D?

In 2024, Alexander Michael Witkowski, MD, PHD had 22 Medicare Part D claims for 14 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Alexander Michael Witkowski, MD, PHD's MIPS final score?

The 2023 MIPS final score is 97.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.