Robert Simonsen, P.A.
NPI 1205888161 · Surgical Physician Assistant · Ellicott City, MD
Robert Simonsen, P.A. is a Surgical Physician Assistant provider in Ellicott City, MD (NPI 1205888161).
Provider details
- NPI number
- 1205888161
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- License
- C00057 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2007-07-09
Frequently asked questions
- What is Robert Simonsen's NPI number?
- Robert Simonsen's National Provider Identifier (NPI) is 1205888161, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Simonsen's specialty?
- Robert Simonsen is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Robert Simonsen located?
- Robert Simonsen's practice location on file with NPPES is 3570 Saint Johns Ln, Ellicott City, MD 21042-4020.
- What is Robert Simonsen's phone number?
- The practice phone number listed in the NPPES registry for Robert Simonsen is (410) 461-9500.
- Is Robert Simonsen's NPI active?
- Yes — Robert Simonsen's NPI (1205888161) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.