Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary L Horseman, CRNP
Nurse Practitioner in Easton, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598778680
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mary L Horseman
Credential CRNP
Sex Female
Practice address 511 Idlewild Ave, Easton, MD, 21601
Phone (410) 822-6005
Fax (410) 822-9253
Enumeration date Aug 13, 2006
Last updated in NPPES Nov 1, 2011
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R094441 (MD) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Mary Horseman?
Mary Horseman is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Volkan Taskin Gastroenterology Physician · Easton, MD NPI 1568412492 Matthew Troshinsky Gastroenterology Physician · Easton, MD NPI 1205886116 Karen Fisher Adult Health Nurse Practitioner · Easton, MD NPI 1720039498 Lisa Roser Adult Health Nurse Practitioner · Easton, MD NPI 1023060688 Michael Fisher Gastroenterology Physician · Easton, MD NPI 1679525059 Hai-Ou Jin Gastroenterology Physician · Easton, MD NPI 1225085061 Digestive Health Associates, P.A. Gastroenterology Physician · Easton, MD NPI 1144346503 Eastern Shore Endoscopy, LLC Endoscopy Clinic/Center · Easton, MD NPI 1215287156
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-01.