Riley B Busch , PA-C
Physician Assistant โข O Fallon, MO
1101 Highway K
O Fallon, MO 633668431
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on March 12, 2024; this date does not establish years in practice.
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Published CMS data list 875 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- J1100 โ Injection, dexamethasone sodium phosphate, 1 mg: 142 service units.
- 99213 โ Established patient outpatient office visit: 76 service units.
- 99214 โ Established patient outpatient office visit: 74 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 28 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 121 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Prednisone โ 32 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 22 prescription fills, including refills.
- Cephalexin โ 21 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 60% of clinicians listed under Physician Assistant in O Fallon, MO (2024, 14 clinicians with data). Median for this group: 328. Middle half: 154 to 1,258.
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Missouri (2024, 944 clinicians with data). Median for this group: 229. Middle half: 96 to 567.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
1101 Highway K
O Fallon, MO 633668431
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Ballwin, MO. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Ssm Medical Group Inc; Total Access Urgent Care Pc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2023
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
213 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $32,835 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $26,873 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
121 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$606 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $14.78 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
3 years (graduated 2023)
CMS Doctors and Clinicians data list 2023 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2024
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Riley Busch has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Riley Busch as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in O Fallon and Missouri
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 60% of clinicians listed under Physician Assistant in O Fallon, MO (2024, 14 clinicians with data). Median for this group: 328. Middle half: 154 to 1,258.
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Missouri (2024, 944 clinicians with data). Median for this group: 229. Middle half: 96 to 567.
Medicare-allowed amount
Close to the middle for clinicians listed under Physician Assistant in O Fallon, MO (2024, 14 clinicians with data). Median for this group: $31,497. Middle half: $11,459 to $63,063.
A higher Medicare-allowed amount than 70% of clinicians listed under Physician Assistant in Missouri (2024, 944 clinicians with data). Median for this group: $16,486. Middle half: $7,632 to $33,529.
Paid by Medicare
Close to the middle for clinicians listed under Physician Assistant in O Fallon, MO (2024, 14 clinicians with data). Median for this group: $25,451. Middle half: $7,925 to $44,495.
A higher Medicare payment amount than 75% of clinicians listed under Physician Assistant in Missouri (2024, 944 clinicians with data). Median for this group: $12,171. Middle half: $5,565 to $25,556.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Physician Assistant in O Fallon, MO (2024, 13 clinicians with data). Median for this group: 399. Middle half: 112 to 547.
Fewer Part D prescriptions than 60% of clinicians listed under Physician Assistant in Missouri (2024, 900 clinicians with data). Median for this group: 219. Middle half: 73 to 682.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Physician Assistant in O Fallon, MO (2024, 13 clinicians with data). Median for this group: $5,482. Middle half: $1,012 to $38,025.
A lower Part D drug cost than 70% of clinicians listed under Physician Assistant in Missouri (2024, 900 clinicians with data). Median for this group: $2,647. Middle half: $562 to $57,833.
19 active clinicians are listed under Physician Assistant with a practice address in O Fallon, MO (1,791 in Missouri).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in O Fallon
15.8% of these 19 clinicians have the CMS telehealth indicator.
89.5% of these 19 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
CMS data for Medicare Part B services are available for 2024 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2024 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2024 only.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2024 only.
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30-day fills
CMS data for 30-day fills are available for 2024 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2024 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $14.78.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
PAXLOVID | General | $14.78 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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J1100
Injection, dexamethasone sodium phosphate, 1 mg
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142 | 23 | $10.00 | $0.11 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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76 | 74 | $182.06 | $74.29 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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74 | 72 | $318.00 | $104.07 |
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87635
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen
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68 | 68 | $161.24 | $50.28 |
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87502
Detection test by nucleic acid for multiple types influenza virus
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61 | 61 | $270.00 | $93.88 |
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71046
X-ray of chest, 2 views
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36 | 35 | $213.18 | $27.09 |
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81003
Automated urinalysis test
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34 | 33 | $46.80 | $2.20 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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34 | 34 | $320.82 | $91.25 |
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96372
Injection of drug or substance under skin or into muscle
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30 | 26 | $61.18 | $11.66 |
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87651
Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique
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28 | 28 | $135.00 | $34.39 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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27 | 27 | $490.50 | $137.04 |
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80051
Blood test panel for electrolytes (sodium potassium, chloride, carbon dioxide)
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23 | 23 | $14.76 | $6.57 |
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85018
Blood count, hemoglobin
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22 | 22 | $11.36 | $2.21 |
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J7613
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg
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22 | 12 | $20.00 | $0.06 |
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82550
Creatine kinase (cardiac enzyme) level, total
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21 | 21 | $13.02 | $6.08 |
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82565
Blood creatinine level
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21 | 21 | $10.24 | $4.78 |
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84520
Urea nitrogen level to assess kidney function, quantitative
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21 | 21 | $7.90 | $3.69 |
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J7030
Infusion, normal saline solution , 1000 cc
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19 | 18 | $10.00 | $2.45 |
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94640
Inhalation treatment for airway obstruction or sputum production
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14 | 12 | $52.23 | $6.39 |
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J7644
Ipratropium bromide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per milligram
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14 | 12 | $14.57 | $0.34 |
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82040
Albumin (protein) level
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11 | 11 | $9.58 | $4.85 |
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82150
Amylase (enzyme) level
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11 | 11 | $32.14 | $6.35 |
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82247
Bilirubin level, total
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11 | 11 | $9.71 | $4.92 |
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84075
Phosphatase (enzyme) level, alkaline
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11 | 11 | $10.01 | $5.08 |
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84155
Total protein level, blood
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11 | 11 | $6.74 | $3.60 |
(top 25 shown)
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 32 | 181 | $51.92 | 31 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 22 | 178 | $148.77 | 21 |
| Cephalexin | Cephalexin | 21 | 184 | $119.36 | 21 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 21 | 189 | $197.81 | 21 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 13 | 125 | $43.82 | 13 |
| Azithromycin | Azithromycin | 12 | 60 | $44.23 | 12 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-08-05NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20240327001237
MO
8224475165
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Total Access Urgent Care Pc
600 Mid Rivers Mall Dr, Saint Peters, MO 633762460
Phone: 3149612255
Ssm Medical Group Inc
1101 Hwy K, O Fallon, MO 633668431
Phone: 6363796363
Total Access Urgent Care Pc
4201 Hwy K, O Fallon, MO 633688230
Phone: 3149612255
Ssm Medical Group Inc
1101 Hwy K, O Fallon, MO 633668431
Phone: 8447767200
Total Access Urgent Care Pc
3909 Mexico Rd, Saint Peters, MO 633766408
Phone: 3149612255
Ssm Medical Group Inc
1035 Bellevue Ave, Saint Louis, MO 631171843
Phone: 3149254770
Total Access Urgent Care Pc
1090 N Hwy 67 St, Florissant, MO 630314720
Phone: 3149612255
Total Access Urgent Care Pc
9556 Manchester Rd, Saint Louis, MO 631191313
Phone: 3149612255
Total Access Urgent Care Pc
13426 Olive Blvd, Chesterfield, MO 630173111
Phone: 3149612255
Total Access Urgent Care Pc
2138 1st Capitol Dr, Saint Charles, MO 633015804
Phone: 3149612255
Total Access Urgent Care Pc
507 S Main St, O Fallon, MO 633662534
Phone: 3149612255
Total Access Urgent Care Pc
10923 Olive Blvd, Creve Coeur, MO 631417740
Phone: 3149612255
Total Access Urgent Care Pc
12409 Saint Charles Rock Rd, Bridgeton, MO 630442507
Phone: 3149612255
Secondary Practice Locations
13861 Manchester Rd
Ballwin, MO 630114503
Phone: 6362209333
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Obstetrics & Gynecology
Doctor of Osteopathic Medicine (D.O.)
Nurse Practitioner - Family
Family Nurse Practitioner
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Registered Nurse - Certified Nurse Practitioner
Nurse Practitioner - Family
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1101 HIGHWAY K, O FALLON, MO 633668431 (Tel: 6363796363)
NPI status registered as active in NPPES database
Registered at 13861 MANCHESTER RD, BALLWIN, MO 630114503 (Tel: 6362209333)
Registered at 1200 E BROADWAY, COLUMBIA, MO 652014979 (Tel: 5738767105)
Recorded as RILEY BUSCH, PA-C
Physician Assistant (license number reported to NPPES: MO 2024006272)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in O Fallon
- Krista Jenkins, PA
- Jamie Moravec, PA-C
- Mariah White, PA-C
- Sara Klein, PA-C
- Jeneffer Avalos Topete, PA
- Olivia Hasselfeld, PA
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Mailing Address
1200 E Broadway
Columbia, MO 652014979
Phone: 5738767105