Margaret Siemer, CNP
NPI 1427123835 · Nurse Practitioner · Greenville, OH
Margaret Siemer, CNP is a Nurse Practitioner provider in Greenville, OH (NPI 1427123835).
Provider details
- NPI number
- 1427123835
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- M126947S (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
19 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
- 2006-11-21
- Last updated
- 2010-02-17
Frequently asked questions
- What is Margaret Siemer's NPI number?
- Margaret Siemer's National Provider Identifier (NPI) is 1427123835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Siemer's specialty?
- Margaret Siemer is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Siemer located?
- Margaret Siemer's practice location on file with NPPES is 5735 Meeker Rd, Greenville, OH 45331-1180.
- What is Margaret Siemer's phone number?
- The practice phone number listed in the NPPES registry for Margaret Siemer is (937) 548-9680.
- Is Margaret Siemer's NPI active?
- Yes — Margaret Siemer's NPI (1427123835) is active in the NPPES registry as of the last update on 2010-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.