NPI registry status
Active
2026 NPPES data Orthopaedic Surgery Physician NPI 1104822790 MD
Verify on CMS → Mark Kowalski, MD
Orthopaedic Surgery Physician in Sahuarita, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 26,109 in Orthopaedic Surgery 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
780
Medicare Part D claims · 256 beneficiaries · Orthopaedic Surgery Physician avg: 344
What the federal data shows
Mark Kowalski, MD filed 780 Medicare Part D claims in 2024 as an Orthopaedic Surgery Physician in Sahuarita, Arizona.
- 780
- Part D claims, 2024
- ≥70th
- 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 Mark Kowalski, MD
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 1104822790), first enumerated 06/28/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 780 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1104822790 · Orthopaedic Surgery Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1104822790
- ENUM-LEGACY 2005
- TAX-MID 26K Orthopaedic Surgery
- RX-LIGHT 780
- BOOK-LIGHT 554 in Arizona
- PHOTO-ENUM John Pell · 2005
Mark Kowalski, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
780 ≥ 70th percentile 70% 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-eligible specialty (heuristic, not verified)
Mark Kowalski, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Kowalski, MD?
Quality data not reportedPrimary specialty
Orthopaedic Surgery Physician
Medicare Part D claims
780 127% vs specialty avg
Specialty distribution in Arizona
How Orthopaedic Surgery Physician compares to other specialties among Arizona 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 Orthopaedic Surgery 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 | 1104822790 |
|---|---|
| Specialty | Orthopaedic Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/28/2005 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
780
Total Claims
$9K
Total Drug Cost
256
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 804.133
- Total Day Supply
- 9,676
- Generic Drug Cost
- $7K
- Opioid Claims
- 431 (55.3% rate)
- Antibiotic Claims
- 23
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mark Kowalski, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Oxycodone Hcl
Oxycodone Hcl
146 claims
- Tramadol Hcl
Tramadol Hcl
130 claims
- Celecoxib
Celecoxib
95 claims
- Meloxicam
Meloxicam
93 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
91 claims
- Pregabalin
Pregabalin
73 claims
- Oxycodone-Acetamin… 57
Oxycodone-Acetaminophen
57 claims
- Methylprednisolone 15
Methylprednisolone
15 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 146 |
| Tramadol Hcl | 130 |
| Celecoxib | 95 |
| Meloxicam | 93 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 91 |
| Pregabalin | 73 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 57 |
| Methylprednisolone | 15 |
| Cephalexin | 11 |
| Cyclobenzaprine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Orthopaedic Surgery Physician Overview
How Mark Kowalski, MD fits within the Orthopaedic Surgery Physician landscape nationally.
26,109
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
344
Avg Claims per Provider
Mark Kowalski, MD's 780 claims are above the specialty average of 344.
Nationwide Orthopaedic Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kowalski, both outside Arizona so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Orthopaedic Surgery Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Kowalski.
One of 554 Orthopaedic Surgery Physician providers enrolled in Arizona, 5 are shown here.
Dr. Mohammed Abbas
MD
Tucson, AZ
Dr. Jon Abbott
M.D.
Tucson, AZ
Dr. Jeffrey Abildgaard
M.D.
Gilbert, AZ
Dr. Thomas Acott
MD
Gilbert, AZ
Dr. Damon Adamany
MD
Sun City West, AZ
Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Kowalski, MD's specialty? ▼
Mark Kowalski, MD specializes in Orthopaedic Surgery Physician and practices in Sahuarita, Arizona. Credentials: MD.
How much does Mark Kowalski, MD prescribe under Medicare Part D? ▼
In 2024, Mark Kowalski, MD wrote 780 Medicare Part D claims totaling $9K in drug costs for 256 beneficiaries.
Where is Mark Kowalski, MD located? ▼
Mark Kowalski, MD is located at 16260 S RANCHO SAHUARITA BLVD # 220, Sahuarita, AZ, 85629. Phone: (520) 352-1004.
What is Mark Kowalski, MD's NPI number? ▼
Mark Kowalski, MD's National Provider Identifier (NPI) is 1104822790, issued on 06/28/2005.
Does Mark Kowalski, MD prescribe opioids? ▼
Yes, Mark Kowalski, MD had 431 opioid claims in 2024 with an opioid prescribing rate of 55.3%.
How many Orthopaedic Surgery Physician providers are there in the US? ▼
There are 26,109 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 344 Medicare Part D claims per year.
What drugs does Mark Kowalski, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Kowalski, MD's most frequently prescribed drugs include Oxycodone Hcl, Tramadol Hcl, Celecoxib. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Kowalski, MD accept Medicare? ▼
Mark Kowalski, MD appears in CMS Medicare data with 780 Part D claims and 256 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Kowalski, MD's credentials? ▼
Mark Kowalski, MD's NPI is 1104822790 with credentials MD. 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.