Provider Profile
Katrina L. Grosswiler, APRN
Unclaimed ProfileAbout Katrina Grosswiler
Katrina L. Grosswiler, APRN is a nurse practitioner based in Fleming Island, FL. Medicare claims data shows Katrina provided 626 services to 302 patients. The services billed most often include injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and x-ray of wrist, minimum of 3 views.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (904) 634-0640
- Email not available
Practice Locations
4565 US HIGHWAY 17 STE 200
Fleming Island, FL 32003
2300 Park Ave Ste 206
Orange Park, FL 32073
216 Southpark Cir E Ste 216
St Augustine, FL 32086
2 Shircliff Way Ste 605
Jacksonville, FL 32204
4268 Oldfield Crossing Dr Ste 201
Jacksonville, FL 32223
3055 County Road 210 W Ste 110
St Johns, FL 32259
10475 Centurion Pkwy N Ste 220
Jacksonville, FL 32256
2627 Riverside Ave Ste 300
Jacksonville, FL 32204
232 Ponte Vedra Park Dr
Ponte Vedra Beach, FL 32082
1690 US Highway 1 S Ste F
St Augustine, FL 32084
15255 Max Legget Pkwy Ste 5300
Jacksonville, FL 32218
Procedures Most Often Billed to Medicare
626 services · 302 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from small joint using ultrasound guidance | Procedure | 20604 |
23 | Too few peers to compare |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
22 | As often as other peers in Nurse Practitioner |
| Aspiration and/or injection of fluid from medium joint | Procedure | 20605 |
20 | As often as other peers in Nurse Practitioner |
| Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device | Procedure | 25609 |
12 | Too few peers to compare |
| X-ray of wrist, minimum of 3 views | Imaging | 73110 |
62 | More often than most peers in Nurse Practitioner |
| X-ray of hand, minimum of 3 views | Imaging | 73130 |
27 | More often than most peers in Nurse Practitioner |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
277 | More often than most peers in Nurse Practitioner |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
49 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
62 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
52 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other nurse practitioners in Fleming Island 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2023 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from small joint using ultrasound guidance 8
Providers in FL who bill this service to Medicare most often.
Common questions
What does Katrina L. Grosswiler specialize in?
Katrina L. Grosswiler is a nurse practitioner in Fleming Island, FL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Katrina L. Grosswiler located?
Katrina L. Grosswiler is listed at 4565 US Highway 17 Ste 200, Fleming Island, FL 32003. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Katrina L. Grosswiler's phone number?
The number on file is (904) 634-0640. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Katrina L. Grosswiler?
Katrina L. Grosswiler's National Provider Identifier is 1861269193. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Katrina L. Grosswiler train?
Katrina L. Grosswiler attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Katrina L. Grosswiler have?
Katrina L. Grosswiler has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
What does Katrina L. Grosswiler do most often?
According to Medicare billing data, Katrina L. Grosswiler performs procedures including aspiration and/or injection of fluid from small joint using ultrasound guidance, aspiration and/or injection of fluid from small joint and aspiration and/or injection of fluid from medium joint; reads or performs imaging such as x-ray of wrist, minimum of 3 views and x-ray of hand, minimum of 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Katrina L. Grosswiler's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Katrina L. Grosswiler. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.