Marilyn Grace Marencik, FNP-C
Family Nurse Practitioner · Radnor, PA
Marilyn Grace Marencik, FNP-C is a family nurse practitioner with a practice address in Radnor, Pennsylvania, and NPI 1578088712, issued on Aug 9, 2017. Check the license (Pennsylvania SP017705, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marilyn Grace Marencik
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- SP017705 PA
Self-reported in NPPES; status is on the state search - Practice location
- 250 King OF Prussia RD, Radnor, PA 19087
- Phone
- (215) 662-7366
- Enumerated
- Aug 9, 2017
- Record last updated
- Jul 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20191122000765); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,209 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.
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- Kristina Casadei, MDInternal Medicine Physician1669606026
- Nicole Czyzewski, DPTPhysical Therapist1043165616
Verify Marilyn Grace Marencik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license SP017705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family nurse practitioner in 2024
244 Medicare Part D claims for 195 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass44 claims
- Paxlovid37 claims
- Nitrofurantoin Mono-Macro16 claims
- Doxycycline Hyclate14 claims
- Montelukast Sodium13 claims
- Prednisone13 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 practice group's MIPS final score for 2023 (Medicare payment program): 86.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilyn Grace Marencik among 7,209 family nurse practitioner records in Pennsylvania
Marilyn Grace Marencik, FNP-C is one of 7,209 family nurse practitioner records with a practice address in Pennsylvania. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 43% of them.
- NPI issued2017 · 43% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2018 among the 4,232 with a school on file
- Record last updated2022 · 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 363LF0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family nurse practitioner records list a practice address in Radnor
They are 10 of the 240 NPPES records with a practice address in Radnor, and 7,209 family nurse practitioner records in Pennsylvania.
All 7,209 in Pennsylvania → Every provider in Radnor → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Meghan CataldiWayne, PA 190871326422858
- Aileen Gavin, CRNPRadnor, PA 190871245628486
- Christine Gearhart, CRNPRadnor, PA 190871174572622
- Elizabeth Hall, MSN, APRN, FNP-BCWayne, PA 190871568836245
- Kelly Kadish, CRNPRadnor, PA 190871821416124
- Trudy LauroRadnor, PA 190871205344959
- Randi Lawrie, CRNPRadnor, PA 190871518132869
- Catherine Miller, CRNPWayne, PA 190871669828679
Common questions
What is Marilyn Grace Marencik, FNP-C's NPI number?
Marilyn Grace Marencik, FNP-C's National Provider Identifier (NPI) is 1578088712, issued on Aug 9, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Grace Marencik, FNP-C located?
The NPPES record lists a practice address at 250 King OF Prussia RD, Radnor, PA, 19087. Phone: (215) 662-7366. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Grace Marencik, FNP-C's license?
NPPES lists Pennsylvania license number SP017705, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Marilyn Grace Marencik, FNP-C prescribe under Medicare Part D?
In 2024, Marilyn Grace Marencik, FNP-C had 244 Medicare Part D claims for 195 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Marilyn Grace Marencik, FNP-C's MIPS final score?
The 2023 MIPS final score is 86.8 of 100, reported for the practice group. 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.