Mary Katherine Morrison
Physician Assistant · New Haven, CT
Mary Katherine Morrison is a physician assistant with a practice address in New Haven, Connecticut, and NPI 1386263010, issued on Apr 13, 2020. Check the license (Connecticut 5178, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Katherine Morrison
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5178 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1 Long Wharf Dr Ste 302, New Haven, CT 06511
- Phone
- (203) 777-7500
- Enumerated
- Apr 13, 2020
- Record last updated
- Aug 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20210506002172); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 1 Long Wharf Dr Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Katherine Morrison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 5178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average physician assistant in 2024
847 Medicare Part D claims for 362 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Fluticasone Propionate88 claims
- Prednisone82 claims
- Azelastine Hcl70 claims
- Methylprednisolone53 claims
- Omeprazole49 claims
- Ipratropium Bromide46 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: $96.49
5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 64,719 providers of this specialty with any payment received $841.65 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
- Mhs Primary Care, Inc.New Haven, CT
- Southern New England Ear, Nose, Throat And Facial Plastic Surgery GrouNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Katherine Morrison among 2,047 physician assistant records in Connecticut
Mary Katherine Morrison 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 2020, is newer than 60% of them.
- NPI issued2020 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2018 · median 2018 among the 1,338 with a school on file
- Record last updated2022 · 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).
256 physician assistant records list a practice address in New Haven
They are 256 of the 9,793 NPPES records with a practice address in New Haven, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in New Haven → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Ronald Arsenault, PANew Haven, CT 065111629002563
- Jason Asselin, PA-CNew Haven, CT 065111811910128
- Lisa Cantey, PA-CNew Haven, CT 065111750376455
- Susan Fair, P.A.-C.New Haven, CT 065111104868256
- Peter Juergensen, PA CNew Haven, CT 065111982699799
- William Kohlhepp, P.A.New Haven, CT 065111184626681
- Paulette Lehrer, PANew Haven, CT 065111699705731
- Judith Madeux, APRNNew Haven, CT 065111316981137
Common questions
What is Mary Katherine Morrison's NPI number?
Mary Katherine Morrison's National Provider Identifier (NPI) is 1386263010, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Morrison located?
The NPPES record lists a practice address at 1 Long Wharf Dr Ste 302, New Haven, CT, 06511. Phone: (203) 777-7500. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Morrison's license?
NPPES lists Connecticut license number 5178, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Katherine Morrison prescribe under Medicare Part D?
In 2024, Mary Katherine Morrison had 847 Medicare Part D claims for 362 beneficiaries; the average among physician assistant prescribers was 830. 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.