Kate B. Mastronunzio, PA-C
Physician Assistant · Stafford Springs, CT
Kate B. Mastronunzio, PA-C is a physician assistant with a practice address in Stafford Springs, Connecticut, and NPI 1730375403, issued on Sep 17, 2007. Check the license (Connecticut 001967, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kate B. Mastronunzio
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 001967 CT
Self-reported in NPPES; status is on the state search - Practice location
- 201 Chestnut Hill RD, Stafford Springs, CT 06076
- Phone
- (860) 684-8185
- Enumerated
- Sep 17, 2007
- Record last updated
- Nov 12, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (860) 684-8285
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 201 Chestnut Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joel Bogner, M.D.Emergency Medicine Physician1255315149
- Shawn Brady, PA-CMedical Physician Assistant1639482573
- Paul Cooke, M.D.Anesthesiology Physician1114925591
Verify Kate B. Mastronunzio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 001967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average physician assistant in 2024
439 Medicare Part D claims for 288 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 22 claims were for opioids.
Most prescribed
- Ondansetron Odt48 claims
- Prednisone40 claims
- Cefuroxime25 claims
- Methocarbamol25 claims
- Doxycycline Hyclate23 claims
- Albuterol Sulfate Hfa19 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): 93.2 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).
Kate B. Mastronunzio among 2,047 physician assistant records in Connecticut
Kate B. Mastronunzio, PA-C is one of 2,047 physician assistant records with a practice address in Connecticut. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 77% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2009 · 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 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 physician assistant records list a practice address in Stafford Springs
They are 5 of the 81 NPPES records with a practice address in Stafford Springs, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in Stafford Springs → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Brian Fry, PAStafford Springs, CT 060761982681425
- Ryan Gelinas, PAStafford Springs, CT 060761871234724
- Laura KielbStafford Springs, CT 060761720315047
- Ryan Makuck, PA-CStafford Springs, CT 060761982858999
- Aditi AgrawalSouth Windsor, CT 060741558012336
- Arfan Ali, PA-CSouth Windsor, CT 060741356292510
- Lori Bryon, PA CSouth Windsor, CT 060741033296223
- Barbara Emery, APRNSouth Windsor, CT 060741154527299
Common questions
What is Kate B. Mastronunzio, PA-C's NPI number?
Kate B. Mastronunzio, PA-C's National Provider Identifier (NPI) is 1730375403, issued on Sep 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kate B. Mastronunzio, PA-C located?
The NPPES record lists a practice address at 201 Chestnut Hill RD, Stafford Springs, CT, 06076. Phone: (860) 684-8185. Providers update this record themselves, so call before visiting.
How can I verify Kate B. Mastronunzio, PA-C's license?
NPPES lists Connecticut license number 001967, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Kate B. Mastronunzio, PA-C prescribe under Medicare Part D?
In 2024, Kate B. Mastronunzio, PA-C had 439 Medicare Part D claims for 288 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Kate B. Mastronunzio, PA-C's MIPS final score?
The 2023 MIPS final score is 93.2 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.