NPPES file of Aug 9, 2026

Katherine O'Connor, MSN, FNP-C

Nurse Practitioner · Grand Prairie, TX

Katherine O'Connor, MSN, FNP-C is a nurse practitioner with a practice address in Grand Prairie, Texas, and NPI 1689238339, issued on Apr 29, 2019. Check the license (Texas AP138922, as entered in NPPES) with the Texas 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
1689238339
Name
Katherine O'Connor
Credential
MSN, FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP138922 TX
Self-reported in NPPES; status is on the state search
Practice location
820 S Carrier Pkwy, Grand Prairie, TX 75051
Phone
(972) 262-1425
Enumerated
Apr 29, 2019
Record last updated
Apr 19, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(972) 262-4973
Medicare enrollment
Enrolled (PECOS I20190815000955); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 820 S Carrier Pkwy

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

  1. Sabrina Cangas, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1588446082
  2. Evelyn Corley, APRN FNP-BCFamily Nurse Practitioner1699177758
  3. Juan Gavalda, M.D.Family Medicine Physician1992062160
  4. Idania Hidalgo, M.D.Family Medicine Physician1154701142
  5. Olga Jones, MDInternal Medicine Physician1265657571
  6. Mariana Otero Suarez, MDFamily Medicine Physician1174225445

Verify Katherine O'Connor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license AP138922
    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 Texas license search

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2.1 times the Medicare Part D claims of the average nurse practitioner in 2024

2,288 Medicare Part D claims for 221 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Katherine O'Connor2,288
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium151 claims
  2. Levothyroxine Sodium132 claims
  3. Lisinopril120 claims
  4. Rosuvastatin Calcium115 claims
  5. Amlodipine Besylate112 claims
  6. Losartan Potassium98 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: $662.81

45 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine O'Connor$662.81
  2. Specialty average$791.64

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. MedhealthDallas, TX

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

Katherine O'Connor among 4,825 nurse practitioner records in Texas

Katherine O'Connor, MSN, FNP-C is one of 4,825 nurse practitioner records with a practice address in Texas. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 55% of them.

  • NPI issued2019 · 55% of these records are older, 38% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2018 · median 2018 among the 2,618 with a school on file
  • Record last updated2021 · 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 363L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Texas

There are 4,825 nurse practitioner records in Texas.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sairoz MobhGrand Prairie, TX 750511063131324
  2. Ernestina Amankwah, NPGrand Prairie, TX 750521770097321
  3. Juliana Atem, ACNP AGGrand Prairie, TX 750521841688595
  4. Veda Breaux, NPGrand Prairie, TX 750501154924033
  5. Rosemary Chacon, FNPGrand Prairie, TX 750501659004562
  6. Yvonne GarciaGrand Prairie, TX 750501083296776
  7. Kaffie McDowell, RNC-WHNPGrand Prairie, TX 750521134376692
  8. Denise Peck, ARNPGrand Prairie, TX 750521265500573

Common questions

What is Katherine O'Connor, MSN, FNP-C's NPI number?

Katherine O'Connor, MSN, FNP-C's National Provider Identifier (NPI) is 1689238339, issued on Apr 29, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherine O'Connor, MSN, FNP-C located?

The NPPES record lists a practice address at 820 S Carrier Pkwy, Grand Prairie, TX, 75051. Phone: (972) 262-1425. Providers update this record themselves, so call before visiting.

How can I verify Katherine O'Connor, MSN, FNP-C's license?

NPPES lists Texas license number AP138922, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine O'Connor, MSN, FNP-C prescribe under Medicare Part D?

In 2024, Katherine O'Connor, MSN, FNP-C had 2,288 Medicare Part D claims for 221 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.