Mary F. O'Connor, ARNP
Family Nurse Practitioner · Zearing, IA
Mary F. O'Connor, ARNP is a family nurse practitioner with a practice address in Zearing, Iowa, and NPI 1255303756, issued on Feb 7, 2006. Check the license (Iowa A097778, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary F. O'Connor
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- A097778 IA
Self-reported in NPPES; status is on the state search - Practice location
- 112 W Main St, Zearing, IA 50278
- Phone
- (641) 487-7800
- Enumerated
- Feb 7, 2006
- Record last updated
- Jun 26, 2023
- Fax
- (641) 487-7803
- Medicare enrollment
- Enrolled (PECOS I20080923000593); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,971 in Iowa → Look up another NPI →
Also registered at 112 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Wilson, ARNPNurse Practitioner1154951556
Verify Mary F. O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A097778Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.3 times the Medicare Part D claims of the average family nurse practitioner in 2024
10,862 Medicare Part D claims for 353 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 552 claims were for opioids.
Most prescribed
- Levothyroxine Sodium487 claims
- Gabapentin321 claims
- Furosemide270 claims
- Pantoprazole Sodium265 claims
- Lisinopril252 claims
- Atorvastatin Calcium246 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 MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $81.97
4 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 99,489 providers of this specialty with any payment received $650.95 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 one group practice
- Ellsworth Municipal HospitalAckley, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary F. O'Connor among 1,971 family nurse practitioner records in Iowa
Mary F. O'Connor, ARNP is one of 1,971 family nurse practitioner records with a practice address in Iowa. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 91% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1997 · median 2018 among the 1,398 with a school on file
- Record last updated2023 · 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Nurse Practitioner providers in Iowa
There are 1,971 family nurse practitioner records in Iowa.
The 8 family nurse practitioner records with the nearest ZIP codes
- Stacie Mallon, FNP-CWoodward, IA 502761720614456
- Laura Hagen, ARNPWinterset, IA 502731912542614
- Rhijeagn Mae Babatido, ARNP, FNP-C, FNP-BCWest Des Moines, IA 502661417760422
- Molly Barnes, ARNPWest Des Moines, IA 502661083342828
- Anna Becker, FNP-CWest Des Moines, IA 502661588508584
- Denise Chappelear, FNP-CWest Des Moines, IA 502661235837410
- Stephanie Christian, DNPWest Des Moines, IA 502661487354064
- Courtney DinsdaleWest Des Moines, IA 502661952166795
Common questions
What is Mary F. O'Connor, ARNP's NPI number?
Mary F. O'Connor, ARNP's National Provider Identifier (NPI) is 1255303756, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary F. O'Connor, ARNP located?
The NPPES record lists a practice address at 112 W Main St, Zearing, IA, 50278. Phone: (641) 487-7800. Providers update this record themselves, so call before visiting.
How can I verify Mary F. O'Connor, ARNP's license?
NPPES lists Iowa license number A097778, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Mary F. O'Connor, ARNP prescribe under Medicare Part D?
In 2024, Mary F. O'Connor, ARNP had 10,862 Medicare Part D claims for 353 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Mary F. O'Connor, ARNP's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.