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Edit this profileAt a glance
- 2 Progress Point Pkwy, Div Im Medical Oncology, O Fallon, MO 63368
About Olivia Hasselfeld
Listed in the NPI registry as a physician assistant, Olivia F. Hasselfeld, PA practices in O Fallon, MO. According to Medicare claims data, Olivia cared for 95 Medicare patients across 145 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. NPI 1194334094 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (800) 647-2098
- Email not available
Practice Locations
2 PROGRESS POINT PKWY DIV IM MEDICAL ONCOLOGY
O Fallon, MO 63368
Procedures Most Often Billed to Medicare
145 services · 95 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
104 | More often than most peers in Physician Assistant |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
41 | More often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other physician assistants in O Fallon 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2020 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Olivia F. Hasselfeld?
Olivia F. Hasselfeld is a physician assistant in O Fallon, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Olivia F. Hasselfeld's address?
Olivia F. Hasselfeld is listed at 2 Progress Point Pkwy Div Im Medical Oncology, O Fallon, MO 63368. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Olivia F. Hasselfeld?
The number on file is (800) 647-2098. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Olivia F. Hasselfeld's NPI number?
Olivia F. Hasselfeld's National Provider Identifier is 1194334094. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Olivia F. Hasselfeld train?
Olivia F. Hasselfeld attended Other, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How long has Olivia F. Hasselfeld been practicing?
Olivia F. Hasselfeld has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
What procedures does Olivia F. Hasselfeld perform?
According to Medicare billing data, Olivia F. Hasselfeld the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Olivia F. Hasselfeld confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Olivia F. Hasselfeld. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.