2026 NPPES data Dermatology Physician NPI 1588212989 MD, PHD
Verify on CMS →

ALEXANDER WITKOWSKI, MD, PHD

Dermatology Physician in PORTLAND, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
335
Medicare Part D claims · 144 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.83/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

ALEXANDER WITKOWSKI, MD, PHD reported a CMS MIPS final score of 97.83/100 — above the 83.1 national average — and filed 335 Medicare Part D claims in 2023.

97.83/100
MIPS score · +15 vs avg
335
Part D claims, 2023
95%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ALEXANDER WITKOWSKI, MD, PHD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ALEXANDER WITKOWSKI, MD, PHD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ALEXANDER WITKOWSKI, MD, PHD?

High performer (top quartile)

NPI registry status

Active

Issued 08/28/2019

NPI 1588212989

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

335 54% vs specialty avg

2023 prescription claims

Specialty avg: 729

MIPS final score

97.83/100 14.730000000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Oregon

How Dermatology Physician compares to other specialties among Oregon providers

Oregon providers

Dermatology Physician share within Oregon

1. Dermatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dermatology Physician share within Oregon

Medicare quality performance — MIPS

ALEXANDER WITKOWSKI, MD, PHD's 2023 MIPS final score plotted against the Dermatology Physician national average

High performer (top quartile)
MIPS Final Score
97.83/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Dermatology Physician) — 97.83/100 vs national avg 83.1

0%100%National avg83%97.8%
MIPS final score (Dermatology Physician) — 97.83/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ALEXANDER WITKOWSKI, MD, PHD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD, PHD credentials at 3303 SW BOND AVE STE 16, PORTLAND, OR, 97239, with a listed phone of (503) 418-3376. NPI 1588212989 was issued on 08/28/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WITKOWSKI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 335 prescription claims written by this provider, covering 144 Medicare beneficiaries and totaling roughly $115K in drug spend, split 5% brand-name and 95% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.83/100 for the 2023 performance year (Quality 80.9759), compared with the national average of 83.1.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3303 SW BOND AVE STE 16
PORTLAND, OR 97239

Provider Details

NPI 1588212989
Specialty Dermatology Physician
Credentials MD, PHD
Gender Male
NPI Issued 08/28/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Brand vs generic prescribing mix · Generic-heavy

ALEXANDER WITKOWSKI, MD, PHD — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 335 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

335
Total Claims
$115K
Total Drug Cost
144
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
405
Total Day Supply
9,674
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$105K
Generic Drug Cost
$9K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.27
Gender Split
28% female / 72% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ALEXANDER WITKOWSKI, MD, PHD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Triamcinolone Acetonide
68
Ketoconazole
57
Clobetasol Propionate
30
Methotrexate
Methotrexate Sodium
23
Fluconazole
16
Fluorouracil
15
Metronidazole
14
Tacrolimus
12
Doxycycline Hyclate
11
Econazole Nitrate
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Dermatology Physician Overview

How ALEXANDER WITKOWSKI, MD, PHD fits within the Dermatology Physician landscape nationally.

14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider

ALEXANDER WITKOWSKI, MD, PHD's 335 claims are below the specialty average of 729.

Nearby Dermatology Physician Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as WITKOWSKI.

Compare Dermatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALEXANDER WITKOWSKI, MD, PHD's specialty?
ALEXANDER WITKOWSKI, MD, PHD specializes in Dermatology Physician and practices in PORTLAND, Oregon. Credentials: MD, PHD.
How much does ALEXANDER WITKOWSKI, MD, PHD prescribe under Medicare Part D?
In 2023, ALEXANDER WITKOWSKI, MD, PHD wrote 335 Medicare Part D claims totaling $115K in drug costs for 144 beneficiaries.
What is ALEXANDER WITKOWSKI, MD, PHD's Medicare quality score?
ALEXANDER WITKOWSKI, MD, PHD has a CMS MIPS Final Score of 97.83/100 (Quality: 80.9759). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ALEXANDER WITKOWSKI, MD, PHD located?
ALEXANDER WITKOWSKI, MD, PHD is located at 3303 SW BOND AVE STE 16, PORTLAND, OR, 97239. Phone: (503) 418-3376.
What is ALEXANDER WITKOWSKI, MD, PHD's NPI number?
ALEXANDER WITKOWSKI, MD, PHD's National Provider Identifier (NPI) is 1588212989, issued on 08/28/2019.
Does ALEXANDER WITKOWSKI, MD, PHD prescribe more brand-name or generic drugs?
ALEXANDER WITKOWSKI, MD, PHD's prescribing is 5% brand-name and 95% generic drugs by claim count, with $105K in brand drug costs.
How many Dermatology Physician providers are there in the US?
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does ALEXANDER WITKOWSKI, MD, PHD prescribe most often?
Based on 2023 Medicare Part D data, ALEXANDER WITKOWSKI, MD, PHD's most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEXANDER WITKOWSKI, MD, PHD accept Medicare?
ALEXANDER WITKOWSKI, MD, PHD appears in CMS Medicare data with 335 Part D claims and 144 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEXANDER WITKOWSKI, MD, PHD's credentials?
ALEXANDER WITKOWSKI, MD, PHD's NPI is 1588212989 with credentials MD, PHD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology