Ellen Siemborski, FNP-BC
NPI 1740575471 · Family Nurse Practitioner · Cleveland, OH
Ellen Siemborski, FNP-BC is a Family Nurse Practitioner provider in Cleveland, OH (NPI 1740575471).
Provider details
- NPI number
- 1740575471
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- COA 12343 (OH)
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
15 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
- 2011-06-10
- Last updated
- 2015-04-15
Frequently asked questions
- What is Ellen Siemborski's NPI number?
- Ellen Siemborski's National Provider Identifier (NPI) is 1740575471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Siemborski's specialty?
- Ellen Siemborski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ellen Siemborski located?
- Ellen Siemborski's practice location on file with NPPES is 9500 Euclid Ave, Cleveland, OH 44195-0001.
- What is Ellen Siemborski's phone number?
- The practice phone number listed in the NPPES registry for Ellen Siemborski is (800) 223-2273.
- Is Ellen Siemborski's NPI active?
- Yes — Ellen Siemborski's NPI (1740575471) is active in the NPPES registry as of the last update on 2015-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.