Olivia Faeth Hasselfeld, PA
Physician Assistant · O Fallon, MO
Olivia Faeth Hasselfeld, PA is a physician assistant with a practice address in O Fallon, Missouri, and NPI 1194334094, issued on Jul 27, 2020. Check the license (Missouri 2020026369, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Faeth Hasselfeld
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2020026369 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2 Progress Point Pkwy, O Fallon, MO 63368
- Phone
- (800) 647-2098
- Enumerated
- Jul 27, 2020
- Record last updated
- Apr 17, 2025
- Fax
- (314) 362-3192
- Medicaid ID
- 220117552 MO
- Medicare enrollment
- Enrolled (PECOS I20210217002450); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 2 Progress Point Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Randi Becker, MDEmergency Medicine Physician1235392788
- Dane Blackwood, CRNACertified Registered Nurse Anesthetist1770127185
- Ajay Chalasani, MDAnesthesiology Physician1487760385
- Jill Cooley, MDAnesthesiology Physician1568780419
- Mary Ernst, CRNACertified Registered Nurse Anesthetist1477864213
Verify Olivia Faeth Hasselfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2020026369Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Washington UniversitySaint Peters, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia Faeth Hasselfeld among 1,790 physician assistant records in Missouri
Olivia Faeth Hasselfeld, PA is one of 1,790 physician assistant records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 57% of them.
- NPI issued2020 · 57% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2020 · median 2019 among the 1,250 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 physician assistant records list a practice address in O Fallon
They are 19 of the 1,225 NPPES records with a practice address in O Fallon, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in O Fallon → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jeneffer Avalos Topete, PAO Fallon, MO 633681952062689
- Acel Camfield, PAO Fallon, MO 633681982215471
- Krista Carter, PA-CO Fallon, MO 633681043622277
- Natasha Fresenburg, PA-CO Fallon, MO 633681780020495
- Krista Jenkins, PAO Fallon, MO 633681598036071
- Jamie Moravec, PA-CO Fallon, MO 633681659630648
- Christopher Perry, PAO Fallon, MO 633681609284645
- Amee Rozanc, PA-CO Fallon, MO 633681255516134
Common questions
What is Olivia Faeth Hasselfeld, PA's NPI number?
Olivia Faeth Hasselfeld, PA's National Provider Identifier (NPI) is 1194334094, issued on Jul 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Faeth Hasselfeld, PA located?
The NPPES record lists a practice address at 2 Progress Point Pkwy, O Fallon, MO, 63368. Phone: (800) 647-2098. Providers update this record themselves, so call before visiting.
How can I verify Olivia Faeth Hasselfeld, PA's license?
NPPES lists Missouri license number 2020026369, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
What is Olivia Faeth Hasselfeld, PA's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.