NPPES file of Aug 9, 2026

Marissa Laura Diorio, FNP-C CRNP

Nurse Practitioner · Wynnewood, PA

Marissa Laura Diorio, FNP-C CRNP is a nurse practitioner with a practice address in Wynnewood, Pennsylvania, and NPI 1952273906, issued on Sep 19, 2025. Check the license (Pennsylvania SP033506, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952273906
Name
Marissa Laura Diorio
Credential
FNP-C CRNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
SP033506 PA
Self-reported in NPPES; status is on the state search
Practice location
100 E Lancaster Ave, Wynnewood, PA 19096
Phone
(610) 645-6555
Enumerated
Sep 19, 2025
Record last updated
Jan 9, 2026
Fax
(610) 649-4744
Medicare enrollment
Enrolled (PECOS I20251103000226); 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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8 nearest nurse practitioner records → All 3,916 in Pennsylvania → Look up another NPI →

Also registered at 100 E Lancaster Ave

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

  1. Nicholas Abate, DOStudent in an Organized Health Care Education/Training Program1508568676
  2. John Abramson, M.D.Gastroenterology Physician1710953633
  3. Sandra Abramson, MDCardiovascular Disease Physician1275538282
  4. Olivia Ackley, MDInternal Medicine Physician1174453930
  5. Ashley Adams, CRNPWomen's Health Nurse Practitioner1497225635
  6. Bonnie Adelman, M.S.P.A.Audiologist1568718088

Verify Marissa Laura Diorio 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 SP033506    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

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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Bills Medicare through one group practice

  1. Main Line HealthcareWynnewood, PA

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

Marissa Laura Diorio among 3,916 nurse practitioner records in Pennsylvania

Marissa Laura Diorio, FNP-C CRNP is one of 3,916 nurse practitioner records with a practice address in Pennsylvania. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 94% of them.

  • NPI issued2025 · 94% of these records are older, 2% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2025 · median 2018 among the 2,360 with a school on file
  • Record last updated2026 · 48% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 nurse practitioner records list a practice address in Wynnewood

They are 21 of the 1,246 NPPES records with a practice address in Wynnewood, and 3,916 nurse practitioner records in Pennsylvania.

All 3,916 in Pennsylvania → Every provider in Wynnewood → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Gina BennettWynnewood, PA 190961588042105
  2. Melissa Buchter, CRNPWynnewood, PA 190961033682968
  3. Donna Calvey, CRNPWynnewood, PA 190961154796001
  4. Joanne Clothier, NPWynnewood, PA 190961528159555
  5. Rebecca Dunn, MSN,CRNPWynnewood, PA 190961952925414
  6. Kimberly Flanagan, APNWynnewood, PA 190961942485172
  7. Kathleen Gilmartin, CRNPWynnewood, PA 190961760873285
  8. Elizabeth Helwig, CRNPWynnewood, PA 190961386041606

Common questions

What is Marissa Laura Diorio, FNP-C CRNP's NPI number?

Marissa Laura Diorio, FNP-C CRNP's National Provider Identifier (NPI) is 1952273906, issued on Sep 19, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Laura Diorio, FNP-C CRNP located?

The NPPES record lists a practice address at 100 E Lancaster Ave, Wynnewood, PA, 19096. Phone: (610) 645-6555. Providers update this record themselves, so call before visiting.

How can I verify Marissa Laura Diorio, FNP-C CRNP's license?

NPPES lists Pennsylvania license number SP033506, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity 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.