Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ellen Ottenstein

Individual provider Clinical Social Worker · NPI 1760847693

Ellen Ottenstein is a Clinical Social Worker in Rockville, Maryland. Qualified in 2012, 14 years ago. Practices with Willow Oak Therapy Center, Inc, an 18-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
14
Licensed in
MD
In the registry since
2015

Practice location Address checks out

15841 Crabbs Branch Way
Rockville, MD 20855-6625
Phone: (301) 251-8965
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 18014 (MD)

Record details

NPI number1760847693
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedDecember 18, 2015
Last updated in NPPESDecember 18, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Willow Oak Therapy Center, Inc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Rockville