Emerald Skai Lassiter , PA-C
Physician Assistant โข Maryville, IL
6812 State Route 162 Ste 200
Maryville, IL 620628562
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Emerald Lassiter is listed in NPPES under Physician Assistant.
-
NPI assigned on December 9, 2022; this date does not establish years in practice.
-
Published CMS data list 326 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.
-
Published Part B service records, 2024:
- 99213 โ Established patient outpatient office visit: 117 service units.
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 94 service units.
- 81003 โ Automated urinalysis test: 53 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 6 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 69 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.
-
Published Part D records, 2024:
- Tamsulosin Hcl โ 15 prescription fills, including refills.
- Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) โ 15 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 14 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 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: 299. Middle half: 219 to 314.
More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: 210. Middle half: 76 to 541.
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
6812 State Route 162 Ste 200
Maryville, IL 620628562
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 3 distinct additional practice-address records in Fairview Heights, IL; O Fallon, IL; Saint Louis, MO. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Arizona Urology Specialists Pllc; Urology Of St Louis Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2023
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
110 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 $14,301 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 $11,203 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
95 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
$555 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.
Open Payments general payments, program year 2025
All general payments: $1,734.77 across 64 records.
By nature of payment
- Food and Beverage: $1,435.91 across 61 records.
- Travel and Lodging: $263.80 across 2 records.
- Education: $35.06 across 1 record.
Reporting-company totals (3 largest of 17)
- Medtronic, Inc.: $263.80 across 2 records.
- Pfizer Inc.: $241.09 across 11 records.
- Bayer Healthcare Pharmaceuticals Inc.: $199.80 across 4 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
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, CMS release of October 2, 2026.
NPI first issued
2022
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Emerald Lassiter 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 Emerald Lassiter 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 Maryville and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: 299. Middle half: 219 to 314.
More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: 210. Middle half: 76 to 541.
Medicare-allowed amount
A lower Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: $21,881. Middle half: $15,142 to $35,327.
Close to the middle for clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: $16,535. Middle half: $6,631 to $35,666.
Paid by Medicare
A lower Medicare payment amount than 80% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: $15,405. Middle half: $11,650 to $27,002.
Close to the middle for clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: $12,317. Middle half: $4,888 to $26,298.
Medicare Part D prescriptions
Fewer Part D prescriptions than 95% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: 553. Middle half: 120 to 1,817.
Fewer Part D prescriptions than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,681 clinicians with data). Median for this group: 200. Middle half: 66 to 586.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Physician Assistant in Maryville, IL (2024, 12 clinicians with data). Median for this group: $39,445. Middle half: $941 to $223,855.
A lower Part D drug cost than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,681 clinicians with data). Median for this group: $2,939. Middle half: $542 to $47,036.
16 active clinicians are listed under Physician Assistant with a practice address in Maryville, IL (5,108 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Maryville
12.5% of these 16 clinicians have the CMS telehealth indicator.
62.5% of these 16 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.
-
Medicare Part B services
CMS data for Medicare Part B services are available for 2024 only.
-
Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2024 only.
-
Paid by Medicare
CMS data for Medicare payment amount are available for 2024 only.
-
Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2024 only.
-
30-day fills
CMS data for 30-day fills are available for 2024 only.
-
Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $920.64 in 2024 to $1,734.77 in 2025.
- 2024: $920.64
- 2025: $1,734.77
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2025 (payments made January 1 โ December 31, 2025): 64 records totaling $1,734.77.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
|
INTERSTIM | General | $259.12 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Xofigo | General | $141.61 |
| UROGEN PHARMA, INC. |
Food and Beverage
In-kind items and services
|
JELMYTO | General | $37.02 |
| AstraZeneca Pharmaceuticals LP |
Education
In-kind items and services
|
IMFINZI | General | $35.06 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
PLUVICTO | General | $30.74 |
| UROGEN PHARMA, INC. |
Food and Beverage
In-kind items and services
|
โ | General | $29.18 |
| C. R. Bard, Inc. & Subsidiaries |
Food and Beverage
In-kind items and services
|
Bard Urinary Drainage Bag | General | $28.62 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LUPRON DEPOT | General | $27.81 |
| Sumitomo Pharma America, Inc. |
Food and Beverage
In-kind items and services
|
GEMTESA | General | $27.67 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
XTANDI | General | $27.47 |
| Sumitomo Pharma America, Inc. |
Food and Beverage
In-kind items and services
|
GEMTESA | General | $26.97 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
KEYTRUDA | General | $26.82 |
| UROGEN PHARMA, INC. |
Food and Beverage
In-kind items and services
|
โ | General | $26.69 |
| Sumitomo Pharma America, Inc. |
Food and Beverage
In-kind items and services
|
GEMTESA | General | $26.47 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LUPRON DEPOT | General | $26.13 |
| UROGEN PHARMA, INC. |
Food and Beverage
In-kind items and services
|
โ | General | $26.05 |
| PROGENICS PHARMACEUTICALS, INC. |
Food and Beverage
In-kind items and services
|
PYLARIFY | General | $26.01 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
ERLEADA | General | $25.84 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
|
Xtandi | General | $25.80 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
LUPRON DEPOT | General | $25.52 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
XTANDI | General | $25.21 |
| Endo USA, Inc. |
Food and Beverage
In-kind items and services
|
XIAFLEX | General | $24.31 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
XTANDI | General | $24.14 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
XTANDI | General | $23.87 |
| Sumitomo Pharma America, Inc. |
Food and Beverage
In-kind items and services
|
GEMTESA | General | $23.71 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, 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 |
|---|---|---|---|---|
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
117 | 80 | $184.00 | $74.17 |
|
G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
94 | 69 | $40.00 | $13.47 |
|
81003
Automated urinalysis test
|
53 | 34 | $6.00 | $2.16 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
24 | 23 | $261.00 | $105.45 |
|
51705
Simple change of bladder tube
|
19 | 11 | $246.00 | $79.79 |
|
51798
Ultrasound measurement of bladder capacity after voiding
|
19 | 16 | $38.00 | $10.29 |
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 |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 15 | 990 | $137.36 | 14 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 15 | 142 | $80.97 | 15 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 14 | 118 | $91.00 | 14 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 13 | 103 | $93.71 | 13 |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 12 | 600 | $152.43 | โ |
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: 2026-06-30NUCC 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.
NUCC 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
I20231013001270
AZ
1850746603
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, CMS release of October 2, 2026
Arizona Urology Specialists Pllc
1313 E Osborn Rd, Phoenix, AZ 850145688
Phone: 6022221900
Arizona Urology Specialists Pllc
2530 E Southern Ave, Mesa, AZ 852045411
Phone: 6022221900
Arizona Urology Specialists Pllc
7340 E Thomas Rd, Scottsdale, AZ 852517216
Phone: 6025570060
Urology Of St Louis Inc
12855 N 40 Dr, Saint Louis, MO 631418669
Phone: 3145676071
Urology Of St Louis Inc
12855 N 40 Dr, Saint Louis, MO 631418657
Phone: 3145676071
Secondary Practice Locations
3 Saint Elizabeth Blvd Ste 3200
O Fallon, IL 622691281
Phone: 6182773109
326 Fountains Pkwy
Fairview Heights, IL 622082041
Phone: 6182773109
12855 N 40 Dr Ste 375
Saint Louis, MO 631418657
Phone: 3145676071
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Urology
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Adult-Gerontology Nurse Practitioner (Board Certified)
Physician Assistant
Physician Assistant
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 6812 STATE ROUTE 162 STE 200, MARYVILLE, IL 620628562 (Tel: 6182880900)
Registered at PO BOX 14369, SAINT LOUIS, MO 631784369 (Tel: 3145676071)
Additional practice office at 326 Fountains Pkwy, Fairview Heights, IL 622082041
Additional practice office at 12855 N 40 Dr Ste 375, Saint Louis, MO 631418657
Additional practice office at 3 Saint Elizabeth Blvd Ste 3200, O Fallon, IL 622691281
Physician Assistant (license number reported to NPPES: IL 085012264)
Registered at 10200 GRAND CENTRAL AVE STE 220, OWINGS MILLS, MD 211174366 (Tel: 0262221900)
Registered at 1313 E OSBORN RD STE 150, PHOENIX, AZ 850145688 (Tel: 6022644431)
Registered at 25 CROSSROADS DR STE 306, OWINGS MILLS, MD 211175437 (Tel: 0262221900)
Registered at 2601 E ROOSEVELT ST, PHOENIX, AZ 850084973 (Tel: 6023445011)
Registered at 2929 E THOMAS RD, PHOENIX, AZ 850168034 (Tel: 6024705000)
Recorded as EMERALD LASSITER, PA-C
Physician Assistant (license number reported to NPPES: AZ 9927)
NPI status registered as active in NPPES database
Registered at 435 N 5TH ST, PHOENIX, AZ 850042157 (Tel: 9288649684)
Registered at 435 N 5TH ST, PHOENIX, AZ 850042157 (Tel: 9288649684)
Recorded as EMERALD LASSITER, PA-S
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 Maryville
- Rachel Gaudreault, PA-C
- Michael Barajas, PA
- Samuel Bailey, PA
- Natalie Ritzheimer, PA
- Corinne Reinholz, PA
- James Peculis, MPAS
Mailing Address
Po Box 14369
Saint Louis, MO 631784369
Phone: 3145676071