Kathryn Daniels Mason, NP
Family Nurse Practitioner · New Haven, CT
Kathryn Daniels Mason, NP is a family nurse practitioner with a practice address in New Haven, Connecticut, and NPI 1316388192, issued on Jul 9, 2013. Check the license (Connecticut 7522, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Daniels Mason
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 7522 CT
RN2303184 MA
657363 NY
F338496 NY
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 200-2328
- Enumerated
- Jul 9, 2013
- Record last updated
- Feb 23, 2022
- Medicare enrollment
- Enrolled (PECOS I20180712000418); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,669 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn Daniels Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 7522Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average family nurse practitioner in 2024
319 Medicare Part D claims for 106 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Anastrozole152 claims
- Letrozole47 claims
- Lidocaine-Prilocaine15 claims
- Ketoconazole11 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): 73.6 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
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Daniels Mason among 2,669 family nurse practitioner records in Connecticut
Kathryn Daniels Mason, NP is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 25% of them.
- NPI issued2013 · 25% of these records are older, 71% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2014 · median 2018 among the 1,664 with a school on file
- Record last updated2022 · 43% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
239 family nurse practitioner records list a practice address in New Haven
They are 239 of the 9,793 NPPES records with a practice address in New Haven, and 2,669 family nurse practitioner records in Connecticut.
All 2,669 in Connecticut → Every provider in New Haven → Family Nurse Practitioner nationwide →
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- Patricia Garrett, APRNNew Haven, CT 065101114909850
- Patricia Giannelli, APRNNew Haven, CT 065101689614638
- Rachel Kinzler, APRNNew Haven, CT 065101952542334
Common questions
What is Kathryn Daniels Mason, NP's NPI number?
Kathryn Daniels Mason, NP's National Provider Identifier (NPI) is 1316388192, issued on Jul 9, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Daniels Mason, NP located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 200-2328. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Daniels Mason, NP's license?
NPPES lists Connecticut license number 7522, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Daniels Mason, NP prescribe under Medicare Part D?
In 2024, Kathryn Daniels Mason, NP had 319 Medicare Part D claims for 106 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Kathryn Daniels Mason, NP's MIPS final score?
The 2023 MIPS final score is 73.6 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.