NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1043325632 M.D.
Verify on CMS → Walter Korytowsky, M.D.
Dermatology Physician in Jackson, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,011 in Dermatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
477
Medicare Part D claims · 219 beneficiaries · Dermatology Physician avg: 799
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Walter Korytowsky, M.D. filed 477 Medicare Part D claims in 2024 as a Dermatology Physician in Jackson, Michigan, prescribing 91% generic.
- 477
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥61st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Walter Korytowsky, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1043325632), first enumerated 08/21/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 477 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not Walter Korytowsky, M.D.'s individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1043325632 · Dermatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1043325632
- ENUM-LEGACY 2006
- TAX-MID 15K Dermatology Physician
- RX-LIGHT 477
- BOOK-THIN 451 in Michigan
- PHOTO-ENUM Katherine White, MD · 2006
Walter Korytowsky, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
477 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Walter Korytowsky, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Walter Korytowsky, M.D.?
Quality data not reportedPrimary specialty
Dermatology Physician
Medicare Part D claims
477 40% vs specialty avg
Specialty distribution in Michigan
How Dermatology Physician compares to other specialties among Michigan providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatology Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1043325632 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/21/2006 |
Hospital and facility affiliations
Facilities where Walter Korytowsky, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Dermatology And Skin Surgery Center
Battle Creek, MI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Walter Korytowsky, M.D.. To verify Walter Korytowsky, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Walter Korytowsky, M.D. - brand share 9.0%
Dermatology Physician average
9% brand-name claims vs 91% generic, on 477 2024 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 2024.
477
Total Claims
$430K
Total Drug Cost
219
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 537.233
- Total Day Supply
- 13,939
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $421K
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 83
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 17, 65-74: 91, 75-84: 80, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Walter Korytowsky, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clobetasol Propion…
Clobetasol Propionate
91 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
86 claims
- Doxycycline Hyclate
Doxycycline Hyclate
54 claims
- Fluorouracil 31
Fluorouracil
31 claims
- Ketoconazole 27
Ketoconazole
27 claims
- Hydrocortisone 25
Hydrocortisone
25 claims
- Dupixent Syringe 24
Dupixent Syringe
24 claims
- Cephalexin 15
Cephalexin
15 claims
| Drug | Claims |
|---|---|
| Clobetasol Propionate | 91 |
| Triamcinolone Acetonide | 86 |
| Doxycycline Hyclate | 54 |
| Fluorouracil | 31 |
| Ketoconazole | 27 |
| Hydrocortisone | 25 |
| Dupixent Syringe Dupilumab | 24 |
| Cephalexin | 15 |
| Metronidazole | 15 |
| Mometasone Furoate | 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 Walter Korytowsky, M.D. fits within the Dermatology Physician landscape nationally.
15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider
Walter Korytowsky, M.D.'s 477 claims are below the specialty average of 799.
Nationwide Dermatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Korytowsky, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dermatology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Korytowsky.
One of 451 Dermatology Physician providers enrolled in Michigan, 5 are shown here.
Dr. Sami Abbasi
DO
Woodhaven, MI
Dr. Martin Abbrecht
MD
Birmingham, MI
Dr. Abraham Abdulhak
MD
Dearborn, MI
Dr. Stephanie Abul
MD
Chesterfield, MI
Dr. Taylor Adlam
MD
Dearborn, MI
Compare Dermatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Walter Korytowsky, M.D.'s specialty? ▼
Walter Korytowsky, M.D. specializes in Dermatology Physician and practices in Jackson, Michigan. Credentials: M.D..
How much does Walter Korytowsky, M.D. prescribe under Medicare Part D? ▼
In 2024, Walter Korytowsky, M.D. wrote 477 Medicare Part D claims totaling $430K in drug costs for 219 beneficiaries.
Where is Walter Korytowsky, M.D. located? ▼
Walter Korytowsky, M.D. is located at 3333 SPRING ARBOR RD, Jackson, MI, 49203. Phone: (517) 783-6435.
What is Walter Korytowsky, M.D.'s NPI number? ▼
Walter Korytowsky, M.D.'s National Provider Identifier (NPI) is 1043325632, issued on 08/21/2006.
Does Walter Korytowsky, M.D. prescribe more brand-name or generic drugs? ▼
Walter Korytowsky, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $421K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
What drugs does Walter Korytowsky, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Walter Korytowsky, M.D.'s most frequently prescribed drugs include Clobetasol Propionate, Triamcinolone Acetonide, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Walter Korytowsky, M.D. accept Medicare? ▼
Walter Korytowsky, M.D. appears in CMS Medicare data with 477 Part D claims and 219 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Walter Korytowsky, M.D.'s credentials? ▼
Walter Korytowsky, M.D.'s NPI is 1043325632 with credentials M.D.. 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
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.