Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Katherine O'Brien
Midwife in Hanover, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205855780
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Registry record
Entity type Individual (Type 1)
Name Ms. Katherine O'Brien
Sex Female
Practice address 7556 Teague Rd, Suite 430, Hanover, MD, 21076
Phone (410) 553-8260
Fax (410) 553-8261
Enumeration date Jul 18, 2006
Last updated in NPPES Mar 19, 2014
Taxonomy & licenses
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 is the NPI number for Katherine O'Brien?
The National Provider Identifier (NPI) for Katherine O'Brien is 1205855780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Katherine O'Brien practice?
The practice location on file with NPPES is in Hanover, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Janice Rutkowski Internal Medicine Physician · Hanover, MD NPI 1326030214 Falana Carter Family Medicine Physician · Hanover, MD NPI 1033182274 Pablo Argeles Obstetrics & Gynecology Physician · Hanover, MD NPI 1902864937 Jonathan Mccoy Family Medicine Physician · Hanover, MD NPI 1700815313 Ella Gayoso-Adam Obstetrics Physician · Hanover, MD NPI 1386717148 Sachin Kalyani Ophthalmology Physician · Hanover, MD NPI 1538283486 Matthew Adler Family Medicine Physician · Hanover, MD NPI 1063617975 Lisa Meade Physician Assistant · Hanover, MD NPI 1649463142
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-19.