Catherine Kowal, MD
NPI 1013909332 · Rheumatology Physician · Naples, FL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Kowal, MD is a Rheumatology Physician provider in Naples, FL (NPI 1013909332).
Provider details
- NPI number
- 1013909332
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- ME62925 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,298 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 941 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 744 | $134 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 657 | $74 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 438 | $134 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 225 | $186 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 427 | 132 |
| Prednisone | 399 | 122 |
| Methotrexate Sodiumbrand: Methotrexate | 389 | 106 |
| Celecoxib | 189 | 55 |
| Gabapentin | 118 | 33 |
| Folic Acid | 99 | 31 |
| Meloxicam | 77 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,109 across 188 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-23
- Last updated
- 2022-04-28
- Certified
- 2022-04-28
Frequently asked questions
- What is Catherine Kowal's NPI number?
- Catherine Kowal's National Provider Identifier (NPI) is 1013909332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Kowal's specialty?
- Catherine Kowal is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Kowal located?
- Catherine Kowal's practice location on file with NPPES is 1855 Veterans Park Dr, Naples, FL 34109-0446.
- What is Catherine Kowal's phone number?
- The practice phone number listed in the NPPES registry for Catherine Kowal is (239) 596-5220.
- Does Catherine Kowal accept Medicare?
- Catherine Kowal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Kowal's NPI active?
- Yes — Catherine Kowal's NPI (1013909332) is active in the NPPES registry as of the last update on 2022-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.