Ashley Mase
Registered Nurse · New Haven, CT
Ashley Mase is a registered nurse with a practice address in New Haven, Connecticut, and NPI 1093583130, issued on Dec 18, 2023. Check the license (Connecticut 143293, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Mase
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 143293 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 688-4242
- Enumerated
- Dec 18, 2023
- Record last updated
- Dec 18, 2023
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 751 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.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Ashley Mase in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 143293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average registered nurse in 2024
54 Medicare Part D claims for 17 beneficiaries, against an average of 678 among the 694 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Oxycodone Hcl11 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.
Ashley Mase among 751 registered nurse records in Connecticut
Ashley Mase is one of 751 registered nurse records with a practice address in Connecticut. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 60% of them.
- NPI issued2023 · 60% of these records are older, 33% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2023 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Registered Nurse providers in Connecticut
There are 751 registered nurse records in Connecticut.
All 751 in Connecticut → Every provider in New Haven → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Sophia BosqueNew Haven, CT 065101346163417
- Chloe CampoliNew Haven, CT 065101902480585
- Jessica ChuNew Haven, CT 065101306537329
- Megan CollinsNew Haven, CT 065101780358739
- Angela Crowley, PHD APRN BC PNPNew Haven, CT 065101285738575
- Ronalee Dennis-NelsonNew Haven, CT 065101073445011
- Brittany Fasanelli, RNNew Haven, CT 065101003677915
- Bailey MacnamaraNew Haven, CT 065101932051869
Common questions
What is Ashley Mase's NPI number?
Ashley Mase's National Provider Identifier (NPI) is 1093583130, issued on Dec 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Mase located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify Ashley Mase's license?
NPPES lists Connecticut license number 143293, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Mase prescribe under Medicare Part D?
In 2024, Ashley Mase had 54 Medicare Part D claims for 17 beneficiaries; the average among registered nurse prescribers was 678. 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.