NPPES file of Aug 9, 2026

Mary Kathryn Morrissey, PA-C

Physician Assistant · Oklahoma City, OK

Mary Kathryn Morrissey, PA-C is a physician assistant with a practice address in Oklahoma City, Oklahoma, and NPI 1144900911, issued on Jul 18, 2023. Check the license (Oklahoma 5019, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144900911
Name
Mary Kathryn Morrissey
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
5019 OK
Self-reported in NPPES; status is on the state search
Practice location
3433 NW 56TH St Ste 900, Oklahoma City, OK 73112
Phone
(405) 713-9935
Enumerated
Jul 18, 2023
Record last updated
Sep 7, 2023
Medicare enrollment
Enrolled (PECOS I20231117001568); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3433 NW 56TH St Ste 900

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Vicente Arcos, M.D.Colon & Rectal Surgery Physician1831480888
  2. Patrick Bell, M.D.Surgery Physician1164491791
  3. Dominykas Burneikis, M.D.Colon & Rectal Surgery Physician1982082913
  4. Talia Burneikis, M.D.Surgery Physician1679952568
  5. Devin Connell-Locklear, ACNPC-AGAcute Care Nurse Practitioner1215617105
  6. Evan Fene, MDOrthopaedic Surgery of the Spine Physician1831651322

Verify Mary Kathryn Morrissey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 5019
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average physician assistant in 2024

21 Medicare Part D claims for 16 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Mary Morrissey21
  2. Specialty average830

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: $25.27

1 payment: food and beverage; the largest payer was Axonics, Inc. 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.

  1. Mary Morrissey$25.27
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Integris Ambulatory Care CorporationOklahoma City, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Kathryn Morrissey among 1,870 physician assistant records in Oklahoma

Mary Kathryn Morrissey, PA-C is one of 1,870 physician assistant records with a practice address in Oklahoma. 79% 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 82% of them.

  • NPI issued2023 · 82% of these records are older, 12% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2023 · median 2017 among the 1,246 with a school on file
  • Record last updated2023 · 45% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

673 physician assistant records list a practice address in Oklahoma City

They are 673 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,870 physician assistant records in Oklahoma.

The 8 physician assistant records with the nearest ZIP codes

  1. Vickie Brown, PAOklahoma City, OK 731121811962251
  2. Gavin Christie, PAOklahoma City, OK 731121083685630
  3. Gregory Dinwiddie, PACOklahoma City, OK 731121578567848
  4. Amy Greco, P.A.Oklahoma City, OK 731121083687750
  5. Sheri Greene, PACOklahoma City, OK 731121043215593
  6. Roger Hellwege, PA-COklahoma City, OK 731121295738110
  7. Deborah Holder, P.A.-COklahoma City, OK 731121093785321
  8. Brett Horst, PAOklahoma City, OK 731121891764197

Common questions

What is Mary Kathryn Morrissey, PA-C's NPI number?

Mary Kathryn Morrissey, PA-C's National Provider Identifier (NPI) is 1144900911, issued on Jul 18, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Mary Kathryn Morrissey, PA-C located?

The NPPES record lists a practice address at 3433 NW 56TH St Ste 900, Oklahoma City, OK, 73112. Phone: (405) 713-9935. Providers update this record themselves, so call before visiting.

How can I verify Mary Kathryn Morrissey, PA-C's license?

NPPES lists Oklahoma license number 5019, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Kathryn Morrissey, PA-C prescribe under Medicare Part D?

In 2024, Mary Kathryn Morrissey, PA-C had 21 Medicare Part D claims for 16 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.