Katherine Antoniou, NP
Family Nurse Practitioner · Webster, MA
Katherine Antoniou, NP is a family nurse practitioner with a practice address in Webster, Massachusetts, and NPI 1306217617, issued on Oct 13, 2015. Check the license (Massachusetts RN280597, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Antoniou
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN280597 MA
Self-reported in NPPES; status is on the state search - Practice location
- 751 School St, Webster, MA 01570
- Phone
- (401) 441-1882
- Enumerated
- Oct 13, 2015
- Record last updated
- Sep 26, 2024
- Medicare enrollment
- Enrolled (PECOS I20170505001337); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Verify Katherine Antoniou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN280597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average family nurse practitioner in 2024
593 Medicare Part D claims for 100 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 91 claims were for opioids.
Most prescribed
- Lorazepam51 claims
- Tramadol Hcl39 claims
- Oxycodone Hcl26 claims
- Pregabalin23 claims
- Levemir22 claims
- Clonazepam20 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.
Industry payments in 2024: $88.75
1 payment: food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- CH Specialty Services MA PCSpringfield, MA
- Curana Health OF Massachusetts LLCSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Antoniou among 4,724 family nurse practitioner records in Massachusetts
Katherine Antoniou, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 34% of them.
- NPI issued2015 · 34% of these records are older, 61% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2015 · median 2019 among the 2,704 with a school on file
- Record last updated2024 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family nurse practitioner records list a practice address in Webster
They are 5 of the 190 NPPES records with a practice address in Webster, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in Webster → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Claudia Arcand, FNPWebster, MA 015701053797035
- Laurenmarie Cormier, FNP-BCWebster, MA 015701700446366
- Karina GregoireWebster, MA 015701659237360
- Nancy Noonan, MSN, APRN, FNP-BCWebster, MA 015701114653847
- Kim Da Silva, FNP, RNUxbridge, MA 015691093045650
- Christine Delisle, FNP-CUxbridge, MA 015691295559649
- Franklin Erzuah, NURSE PRACTITIONERUxbridge, MA 015691205262185
- Lisa Hefron, FNPUxbridge, MA 015691558127555
Common questions
What is Katherine Antoniou, NP's NPI number?
Katherine Antoniou, NP's National Provider Identifier (NPI) is 1306217617, issued on Oct 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Antoniou, NP located?
The NPPES record lists a practice address at 751 School St, Webster, MA, 01570. Phone: (401) 441-1882. Providers update this record themselves, so call before visiting.
How can I verify Katherine Antoniou, NP's license?
NPPES lists Massachusetts license number RN280597, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Antoniou, NP prescribe under Medicare Part D?
In 2024, Katherine Antoniou, NP had 593 Medicare Part D claims for 100 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
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.