Olesia Grellner, APRN-CNP
NPI 1114185659 · Family Nurse Practitioner · Oklahoma City, OK
Olesia Grellner, APRN-CNP is a Family Nurse Practitioner provider in Oklahoma City, OK (NPI 1114185659).
Provider details
- NPI number
- 1114185659
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 90690 (OK)
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
18 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
- 2008-05-31
- Last updated
- 2017-01-03
Frequently asked questions
- What is Olesia Grellner's NPI number?
- Olesia Grellner's National Provider Identifier (NPI) is 1114185659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olesia Grellner's specialty?
- Olesia Grellner is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Olesia Grellner located?
- Olesia Grellner's practice location on file with NPPES is 2625 General Pershing Blvd, Oklahoma City, OK 73107-6437.
- What is Olesia Grellner's phone number?
- The practice phone number listed in the NPPES registry for Olesia Grellner is (405) 945-6225.
- Is Olesia Grellner's NPI active?
- Yes — Olesia Grellner's NPI (1114185659) is active in the NPPES registry as of the last update on 2017-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.