Individual Healthcare Provider
Megan Ryan-Riffle, CRNP
Provider's NPPES record last updated: July 17, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1356957534
- Primary Specialty
- Nurse Practitioner
- Practice Location
- Owings Mills, Maryland
- Sole Proprietor
- Yes
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 21, 2026, 2:45 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Nurse Practitioner
Physician Assistants & Advanced Practice Nursing Providers
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Taxonomy code 363L00000X Nurse Practitioner
Family
Physician Assistants & Advanced Practice Nursing Providers
Definition to come...
Taxonomy code 363LF0000X
Provider-Reported License Information
- Nurse Practitioner (Maryland)
- R211398
- Nurse Practitioner (Pennsylvania)
- SP023597
- Nurse Practitioner (Pennsylvania)
- SP023597
Practice Locations
Practice Location
21 Crossroads Dr Ste 200
Owings Mills, Maryland 21117-5483
Phone: (410) 581-8140
Additional Practice Location
194 Thomas Johnson Dr
Frederick, Maryland 21702-4679
Phone: (240) 215-6310
Additional Practice Location
3000d Ventrie Ct
Myersville, Maryland 21773-7817
Phone: (240) 215-6310
Additional Practice Location
450 S Washington St Ste A
Gettysburg, Pennsylvania 17325-2500
Phone: (717) 339-3105
Fax: (717) 798-3670
Additional Practice Location
1562 Opossumtown Pike
Frederick, Maryland 21702-4920
Phone: (240) 215-6310
Additional Practice Location
501 W 7th St
Frederick, Maryland 21701-4586
Phone: (240) 215-6310
Additional Practice Location
504 E Ridgeville Blvd
Mount Airy, Maryland 21771-5942
Phone: (240) 215-6310
Additional Practice Location
3430 Worthington Blvd
Frederick, Maryland 21704-7017
Phone: (240) 215-6310
Additional Practice Location
230 W Patrick St
Frederick, Maryland 21701-6945
Phone: (240) 215-6310
Additional Practice Location
16403 Old Emmitsburg Rd
Emmitsburg, Maryland 21727-8929
Phone: (240) 215-6310
Additional Practice Location
7211 Bank Ct
Frederick, Maryland 21703-8483
Phone: (240) 215-6310
Additional Practice Location
15 E Frederick St
Walkersville, Maryland 21793-8234
Phone: (240) 215-6310
Additional Practice Location
400 W 7th St
Frederick, Maryland 21701-4506
Phone: (240) 215-6310
Additional Practice Location
141 Thomas Johnson Dr
Frederick, Maryland 21702-4502
Phone: (301) 846-0100
Additional Practice Location
75 Thomas Johnson Dr
Frederick, Maryland 21702-4895
Phone: (240) 215-6310
Additional Practice Location
6040 Sykesville Rd
Eldersburg, Maryland 21784-6000
Phone: (301) 988-8222
Additional Practice Location
1 Heritage Ln
Emmitsburg, Maryland 21727-9103
Phone: (301) 988-8822
Record Information
- Enumeration Date
- September 22, 2020
- Provider's NPPES Record Last Updated
- July 17, 2026
- Certification Date
- July 17, 2026
- NPISignal NPPES Dataset
- August 2026
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