Matthew Knowlton, ARNP
Acute Care Nurse Practitioner · Clearwater, FL
Matthew Knowlton, ARNP is an acute care nurse practitioner with a practice address in Clearwater, Florida, and NPI 1619476645, issued on Feb 5, 2018. Check the license (Florida ARNP9309125, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Matthew Knowlton
- Credential
- ARNP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- ARNP9309125 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1011 Jeffords St Bldg C, Clearwater, FL 33756
- Phone
- (727) 446-5993
- Enumerated
- Feb 5, 2018
- Record last updated
- Feb 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20180403002114); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 1,794 in Florida → Look up another NPI →
Also registered at 1011 Jeffords St Bldg C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Benson, PA-CSurgical Physician Assistant1558412825
- Mitchell Herrema, D.O.Adult Reconstructive Orthopaedic Surgery Physician1811126048
- Richard Howell, MDSports Medicine (Orthopaedic Surgery) Physician1609139336
- Christina Page, ATC, OT-COrthopedic Assistant1326563628
- Zachary Serbu, PA-CPhysician Assistant1538633805
Verify Matthew Knowlton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ARNP9309125Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average acute care nurse practitioner in 2024
700 Medicare Part D claims for 103 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 630 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen253 claims
- Morphine Sulfate Er116 claims
- Tramadol Hcl70 claims
- Oxycodone Hcl65 claims
- Xtampza Er53 claims
- Oxycodone-Acetaminophen38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 95.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Radial Health Southeast LLCPensacola, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Knowlton among 1,794 acute care nurse practitioner records in Florida
Matthew Knowlton, ARNP is one of 1,794 acute care nurse practitioner records with a practice address in Florida. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 30% of them.
- NPI issued2018 · 30% of these records are older, 66% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2017 · median 2021 among the 1,068 with a school on file
- Record last updated2022 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Florida
There are 1,794 acute care nurse practitioner records in Florida.
All 1,794 in Florida → Every provider in Clearwater → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Adam BatesClearwater, FL 337561861379091
- Sandra Collins, APRNClearwater, FL 337561528823564
- Tracey Earl, ARNPClearwater, FL 337561508358219
- Krista Kelly, APRNClearwater, FL 337561336895606
- Mary Kerr, APRNClearwater, FL 337561396045258
- Patricia MacalusoClearwater, FL 337561811751837
- Emma Martina, APRNClearwater, FL 337561841173747
- James McNutt, ACNP-BCClearwater, FL 337561790088623
Common questions
What is Matthew Knowlton, ARNP's NPI number?
Matthew Knowlton, ARNP's National Provider Identifier (NPI) is 1619476645, issued on Feb 5, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Knowlton, ARNP located?
The NPPES record lists a practice address at 1011 Jeffords St Bldg C, Clearwater, FL, 33756. Phone: (727) 446-5993. Providers update this record themselves, so call before visiting.
How can I verify Matthew Knowlton, ARNP's license?
NPPES lists Florida license number ARNP9309125, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Matthew Knowlton, ARNP prescribe under Medicare Part D?
In 2024, Matthew Knowlton, ARNP had 700 Medicare Part D claims for 103 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.
What is Matthew Knowlton, ARNP's MIPS final score?
The 2023 MIPS final score is 95.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.