Siobhan Donnelly, PSY.D.
NPI 1669888392 · Clinical Psychologist · Ellicott City, MD
Siobhan Donnelly, PSY.D. is a Clinical Psychologist provider in Ellicott City, MD (NPI 1669888392).
Provider details
- NPI number
- 1669888392
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 019370 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (3)
- 1407 Eutaw Pl Apt 4Baltimore, MD 21217-4048Phone: (917) 584-5702
- 276 5th AveSuite 1101New York, NY 10001-4509Phone: (212) 683-3339
- 519 8th Ave Rm 9New York, NY 10018-4582Phone: (212) 683-3339
Registry dates
- Enumerated
- 2014-07-02
- Last updated
- 2019-02-20
Frequently asked questions
- What is Siobhan Donnelly's NPI number?
- Siobhan Donnelly's National Provider Identifier (NPI) is 1669888392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siobhan Donnelly's specialty?
- Siobhan Donnelly is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Siobhan Donnelly located?
- Siobhan Donnelly's practice location on file with NPPES is 5116 Dorsey Hall Dr Ste B, Ellicott City, MD 21042-7877.
- What is Siobhan Donnelly's phone number?
- The practice phone number listed in the NPPES registry for Siobhan Donnelly is (410) 995-8274.
- Is Siobhan Donnelly's NPI active?
- Yes — Siobhan Donnelly's NPI (1669888392) is active in the NPPES registry as of the last update on 2019-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.