NPPES file of Aug 9, 2026

Maryellen Theresa O'Hara, CRNP

Adult Health Nurse Practitioner · Radnor, PA

Maryellen Theresa O'Hara, CRNP is an adult health nurse practitioner with a practice address in Radnor, Pennsylvania, and NPI 1366693707, issued on Oct 3, 2008. Check the license (Pennsylvania VP006835C, as entered in NPPES) with the Pennsylvania 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
1366693707
Name
Maryellen Theresa O'Hara
Credential
CRNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
VP006835C PA
Self-reported in NPPES; status is on the state search
Practice location
250 King OF Prussia RD, Radnor, PA 19087
Phone
(610) 902-5625
Enumerated
Oct 3, 2008
Record last updated
Oct 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20230817004160); 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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8 nearest adult health nurse practitioner records → All 1,368 in Pennsylvania → Look up another NPI →

Also registered at 250 King OF Prussia RD

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

  1. Pamela Anger, AU.D. CCC-AAudiologist1861588535
  2. Emelia Bachman, MDReproductive Endocrinology Physician1932375078
  3. Steven Borislow, MDDiagnostic Radiology Physician1497782395
  4. Ashley Brogan, M.D.Cardiovascular Disease Physician1295094985
  5. Kristina Casadei, MDInternal Medicine Physician1669606026
  6. Nicole Czyzewski, DPTPhysical Therapist1043165616

Verify Maryellen Theresa O'Hara in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license VP006835C    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 Pennsylvania license search

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91% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

121 Medicare Part D claims for 56 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.

  1. Maryellen O'Hara121
  2. Specialty average1,280

Most prescribed

  1. Hydroxychloroquine Sulfate17 claims
  2. Methotrexate17 claims
  3. Alendronate Sodium12 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: $878.35

51 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maryellen O'Hara$878.35
  2. Specialty average$946.40

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. Premier Orthopaedic And Sports Medicine Associates, LtdMalvern, PA

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

Maryellen Theresa O'Hara among 1,368 adult health nurse practitioner records in Pennsylvania

Maryellen Theresa O'Hara, CRNP is one of 1,368 adult health nurse practitioner records with a practice address in Pennsylvania. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 33% of them.

  • NPI issued2008 · 33% of these records are older, 60% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2000 · median 2012 among the 678 with a school on file
  • Record last updated2008 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 adult health nurse practitioner records list a practice address in Radnor

They are 7 of the 240 NPPES records with a practice address in Radnor, and 1,368 adult health nurse practitioner records in Pennsylvania.

All 1,368 in Pennsylvania → Every provider in Radnor → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Robert Davis, CRNPWayne, PA 190871386751956
  2. Lisa Dilello, CRNPSt Davids, PA 190871811704802
  3. Maureen Holman, CRNPRadnor, PA 190871326078403
  4. Maureen Kane, CRNPRadnor, PA 190871609909647
  5. Devangi Ladani, APRNWayne, PA 190871417329186
  6. Michele McRae, CRNPRadnor, PA 190871386479897
  7. Kelly Nestor, CRNPRadnor, PA 190871467696716
  8. Lisa Ross, CRNPWayne, PA 190871023133907

Common questions

What is Maryellen Theresa O'Hara, CRNP's NPI number?

Maryellen Theresa O'Hara, CRNP's National Provider Identifier (NPI) is 1366693707, issued on Oct 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Maryellen Theresa O'Hara, CRNP located?

The NPPES record lists a practice address at 250 King OF Prussia RD, Radnor, PA, 19087. Phone: (610) 902-5625. Providers update this record themselves, so call before visiting.

How can I verify Maryellen Theresa O'Hara, CRNP's license?

NPPES lists Pennsylvania license number VP006835C, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Maryellen Theresa O'Hara, CRNP prescribe under Medicare Part D?

In 2024, Maryellen Theresa O'Hara, CRNP had 121 Medicare Part D claims for 56 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.