Katrina Grosswiler, APRN
NPI 1861269193 · Nurse Practitioner · Fleming Island, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Grosswiler, APRN is a Nurse Practitioner provider in Fleming Island, FL (NPI 1861269193).
Provider details
- NPI number
- 1861269193
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- APRN11030046 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
2 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
11 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
300 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) |
|---|---|---|
| X-Ray of Wrist, Minimum of 3 Views73110 | 62 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $75 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 52 | $46 |
| X-Ray of Hand, Minimum of 3 Views73130 | 27 | $30 |
| Aspiration And/Or Injection of Fluid From Small Joint Using Ultrasound Guidance20604 | 23 | $81 |
| Aspiration And/Or Injection of Fluid From Small Joint20600 | 22 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 110 | 93 |
| Tramadol Hcl | 18 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (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
Additional practice locations (10)
- 2627 Riverside Ave Ste 300Jacksonville, FL 32204-4717Phone: (904) 634-0640Fax: (904) 634-0203
- 10475 Centurion Pkwy N Ste 220Jacksonville, FL 32256-5004Phone: (904) 634-0640Fax: (904) 634-0203
- 2 Shircliff Way Ste 605Jacksonville, FL 32204-4762Phone: (904) 634-0640
- 15255 Max Legget Pkwy Ste 5300Jacksonville, FL 32218-7274Phone: (904) 634-0640Fax: (904) 634-0640
- 4268 Oldfield Crossing Dr Ste 201Jacksonville, FL 32223-8800Phone: (904) 634-0640
- 2300 Park Ave Ste 206Orange Park, FL 32073-5573Phone: (904) 634-0640Fax: (904) 634-0203
- 232 Ponte Vedra Park DrPonte Vedra Beach, FL 32082-6600Phone: (904) 634-0640Fax: (904) 634-0203
- 1690 US Highway 1 S Ste FSt Augustine, FL 32084-6024Phone: (904) 634-0640
Registry dates
- Enumerated
- 2023-12-06
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Katrina Grosswiler's NPI number?
- Katrina Grosswiler's National Provider Identifier (NPI) is 1861269193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Grosswiler's specialty?
- Katrina Grosswiler is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katrina Grosswiler located?
- Katrina Grosswiler's practice location on file with NPPES is 4565 US Highway 17 Ste 200, Fleming Island, FL 32003-4823.
- What is Katrina Grosswiler's phone number?
- The practice phone number listed in the NPPES registry for Katrina Grosswiler is (904) 634-0640.
- Does Katrina Grosswiler accept Medicare?
- Katrina Grosswiler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Grosswiler's NPI active?
- Yes — Katrina Grosswiler's NPI (1861269193) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.