Holly Strassner, R.N.P
NPI 1528209319 · Nurse Practitioner · O Fallon, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Strassner, R.N.P is a Nurse Practitioner provider in O Fallon, MO (NPI 1528209319).
Provider details
- NPI number
- 1528209319
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N.P
- Sex
- Female
- Sole proprietor
- No
- License
- AG02170163 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
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
17 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
- 2009-03-09
- Last updated
- 2023-02-14
- Certified
- 2023-02-14
Frequently asked questions
- What is Holly Strassner's NPI number?
- Holly Strassner's National Provider Identifier (NPI) is 1528209319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Strassner's specialty?
- Holly Strassner is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Holly Strassner located?
- Holly Strassner's practice location on file with NPPES is 263 Fairway Green Dr, O Fallon, MO 63368-4271.
- What is Holly Strassner's phone number?
- The practice phone number listed in the NPPES registry for Holly Strassner is (636) 542-1199.
- Does Holly Strassner accept Medicare?
- Holly Strassner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Strassner's NPI active?
- Yes — Holly Strassner's NPI (1528209319) is active in the NPPES registry as of the last update on 2023-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.