Korrin Einertson , PA-C
Physician Assistant β’ Saint Louis, MO
100 S 4th St Ste 550
Saint Louis, MO 631021897
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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Korrin Einertson is listed in NPPES under Physician Assistant.
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NPI assigned on June 2, 2021; this date does not establish years in practice.
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Published CMS data list 19 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Meloxicam β 19 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Saint Louis, MO (2024, 219 clinicians with data). Median for this group: 169. Middle half: 48 to 442.
Fewer Part D prescriptions than 90% of clinicians listed under Physician Assistant in Missouri (2024, 900 clinicians with data). Median for this group: 219. Middle half: 73 to 682.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
100 S 4th St Ste 550
Saint Louis, MO 631021897
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Durham, NC. See the list
Source: CMS NPPES NPI Registry, practice location records; 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
2021
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
27 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
$84 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 β by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $212.66 across 8 records.
By nature of payment
- Food and Beverage: $212.66 across 8 records.
Reporting-company totals (3 largest of 4)
- Stryker Corporation: $97.00 across 3 records.
- Bioventus LLC: $58.67 across 2 records.
- VERTEX PHARMACEUTICALS INCORPORATED: $34.18 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 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
2021
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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, βDoes your provider accept Medicare as full payment?β
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)
Korrin Einertson 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 Korrin Einertson 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 Saint Louis and Missouri
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Saint Louis, MO (2024, 219 clinicians with data). Median for this group: 169. Middle half: 48 to 442.
Fewer Part D prescriptions than 90% 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 Saint Louis, MO (2024, 219 clinicians with data). Median for this group: $2,208. Middle half: $383 to $38,187.
A lower Part D drug cost than 90% 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.
498 active clinicians are listed under Physician Assistant with a practice address in Saint Louis, MO (1,791 in Missouri).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Saint Louis
12.7% of these 498 clinicians have the CMS telehealth indicator.
66.5% of these 498 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 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)
Industry payments (Open Payments) went from $13.69 in 2023 to $212.66 in 2025.
- 2023: $13.69
- 2024: $87.19
- 2025: $212.66
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· 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 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $212.66.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Bioventus LLC |
Food and Beverage
In-kind items and services
|
XCELL | General | $42.08 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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INSIGNIA | General | $33.26 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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TRIATHLON | General | $32.03 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
X3 | General | $31.71 |
| DJO, LLC |
Food and Beverage
In-kind items and services
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CMF | General | $22.81 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
|
JOURNAVX | General | $19.69 |
| Bioventus LLC |
Food and Beverage
In-kind items and services
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EXOGEN ULTRASOUND BONE HEALING SYSTEM | General | $16.59 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
|
JOURNAVX | General | $14.49 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Meloxicam | Meloxicam | 19 | 810 | $83.78 | β |
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: 2026-05-01NUCC 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
I20260507001354
NC
4981061538
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
2741 Campus Walk Ave Ste 200
Durham, NC 277058878
Phone: 9193917202
5501 Fortunes Ridge Dr Ste P
Durham, NC 277136102
Phone: 9193917202
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Psychiatry & Neurology - Psychiatry
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Psychiatric/Mental Health
Psychiatric-Mental Health Nurse Practitioner (Board Certified)
Physician Assistant
Physician Assistant (Certified)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 100 S 4TH ST STE 550, SAINT LOUIS, MO 631021897 (Tel: 9193917202)
Registered at 5501 FORTUNES RIDGE DR STE P, DURHAM, NC 277136102 (Tel: 9193917202)
Recorded as KORRIN EINERTSON, PA-C
Registered at 8225 CLAYTON RD, SAINT LOUIS, MO 631171107 (Tel: 3143304776)
Registered at 8225 CLAYTON RD, SAINT LOUIS, MO 631171107 (Tel: 3143304776)
Physician Assistant (license number reported to NPPES: MO 2021041375)
NPI status registered as active in NPPES database
Registered at 18242 CANYON FOREST CT, CHESTERFIELD, MO 630051441 (Tel: 5737689050)
Registered at 18242 CANYON FOREST CT, CHESTERFIELD, MO 630051441 (Tel: 5737689050)
Recorded as KORRIN TILLEY
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Saint Louis
- Anna Quinn, PA
- Stefanie Labar, PA-C
- Molly Dilley, PA-C
- Jennifer Gorham, PA-C
- Kendra Owen, PA-C
- Margaret Neff, PA-C
Mailing Address
5501 Fortunes Ridge Dr Ste P
Durham, NC 277136102
Phone: 9193917202