Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Heather M Quist , FNP-C

Nurse Practitioner • Fenton, MO

Active NPI 1861888729 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1345 Smizer Mill Rd Ste 1100
Fenton, MO 630267305

Call 6364965023 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1345 Smizer Mill Rd Ste 1100

Fenton, MO 630267305

Telephone 6364965023
Organization at the Same NPPES Address or Phone
Ssm Medical Group Inc. Facility NPI 1043518350

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in O Fallon, MO. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Ssm Medical Group Inc. 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

Graduation Year

2014

Medicare patients

65 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $8,686 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.

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 – by Provider and Service, 2024.

Paid by Medicare

About $6,417 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

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 – by Provider and Service, 2024.

30-day fills

2,571 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

$112,508 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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 – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $1,070.41 across 56 records.

By nature of payment

  • Food and Beverage: $1,070.41 across 56 records.

Reporting-company totals (3 largest of 21)

  • Pfizer Inc.: $153.39 across 16 records.
  • Eli Lilly and Company: $124.51 across 7 records.
  • Neurocrine BioSciences, Inc.: $117.95 across 1 record.

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.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

12 years (graduated 2014)

CMS Doctors and Clinicians data list 2014 as the year this clinician finished professional 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

2015

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.

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, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Heather Quist 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Heather Quist 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Fenton and Missouri

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Missouri (2024, 860 clinicians with data). Median for this group: 231. Middle half: 88 to 493.

Too few clinicians listed under Nurse Practitioner in Fenton have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A lower Medicare-allowed amount than 65% of clinicians listed under Nurse Practitioner in Missouri (2024, 860 clinicians with data). Median for this group: $17,615. Middle half: $6,020 to $35,542.

Too few clinicians listed under Nurse Practitioner in Fenton have Medicare Part B data for 2024 to compare.

Paid by Medicare

A lower Medicare payment amount than 65% of clinicians listed under Nurse Practitioner in Missouri (2024, 860 clinicians with data). Median for this group: $12,817. Middle half: $4,412 to $26,824.

Too few clinicians listed under Nurse Practitioner in Fenton have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 70% of clinicians listed under Nurse Practitioner in Missouri (2024, 924 clinicians with data). Median for this group: 303. Middle half: 86 to 1,191.

Too few clinicians listed under Nurse Practitioner in Fenton have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Missouri (2024, 924 clinicians with data). Median for this group: $13,920. Middle half: $1,057 to $134,310.

Too few clinicians listed under Nurse Practitioner in Fenton have Medicare Part D data for 2024 to compare.

11 active clinicians are listed under Nurse Practitioner with a practice address in Fenton, MO (1,721 in Missouri).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Fenton

27.3% of these 11 clinicians have the CMS telehealth indicator.

72.7% of these 11 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), 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 · 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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 56 records totaling $1,070.41.

Manufacturer Payment Nature Product Type Amount ($)
Neurocrine BioSciences, Inc.
Food and Beverage
In-kind items and services
INGREZZA General $117.95
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
SPRAVATO General $47.92
Lundbeck LLC
Food and Beverage
Cash or cash equivalent
REXULTI General $30.93
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $28.87
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $28.60
Eli Lilly and Company
Food and Beverage
In-kind items and services
ZEPBOUND General $28.17
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $27.44
Eli Lilly and Company
Food and Beverage
In-kind items and services
JARDIANCE General $27.01
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $26.78
Radius Health, Inc.
Food and Beverage
In-kind items and services
Tymlos General $26.06
Lundbeck LLC
Food and Beverage
Cash or cash equivalent
VYEPTI General $25.82
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Auvelity General $25.47
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $24.19
Edwards Lifesciences Corporation
Food and Beverage
In-kind items and services
Edwards SAPIEN 3 Ultra Transcatheter Heart Valve General $23.73
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $23.29
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $22.81
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $22.59
Itamar Medical Inc
Food and Beverage
Cash or cash equivalent
WatchPATONE General $22.51
Novo Nordisk Inc
Food and Beverage
In-kind items and services
— General $21.50
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Auvelity General $21.42
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $20.65
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $20.61
Boehringer Ingelheim Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
JARDIANCE General $20.60
Boehringer Ingelheim Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
JARDIANCE General $20.16
Amgen Inc.
Food and Beverage
In-kind items and services
OTEZLA General $19.14

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 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 – by Provider and Service data, 2019–2024; 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
51 43 $145.00 $74.27
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
24 24 $238.00 $105.71
G0444 Annual depression screening, 5 to 15 minutes
24 24 $36.00 $15.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
19 16 $213.00 $104.97

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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 80 6,540 $586.97 25
Levothyroxine Sodium Levothyroxine Sodium 68 6,009 $365.72 26
Amlodipine Besylate Amlodipine Besylate 65 5,130 $399.37 17
Lisinopril Lisinopril 58 4,320 $265.54 17
Pantoprazole Sodium Pantoprazole Sodium 55 4,410 $327.50 18
Hydrochlorothiazide Hydrochlorothiazide 54 3,910 $170.27 15
Metformin Hcl Metformin Hcl 40 3,541 $158.50 14
Meloxicam Meloxicam 39 2,790 $138.06 17
Losartan Potassium Losartan Potassium 37 3,270 $403.38 13
Ozempic Semaglutide 37 1,274 $43,449.17 —
Bupropion Xl Bupropion Hcl 28 2,040 $588.26 —
Buspirone Hcl Buspirone Hcl 27 1,470 $282.76 —
Trazodone Hcl Trazodone Hcl 26 2,070 $298.25 —
Albuterol Sulfate Hfa Albuterol Sulfate 26 707 $589.65 17
Alendronate Sodium Alendronate Sodium 25 1,712 $131.81 —
Mounjaro Tirzepatide 24 672 $25,501.03 —
Prednisone Prednisone 23 129 $32.79 22
Sertraline Hcl Sertraline Hcl 20 1,740 $128.31 —
Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide 20 1,800 $200.79 —
Omeprazole Omeprazole 20 1,800 $189.02 —
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 19 145 $92.84 15
Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide 18 1,620 $103.01 —
Cefdinir Cefdinir 18 180 $255.97 16
Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav 18 168 $154.00 18
Rosuvastatin Calcium Rosuvastatin Calcium 18 1,500 $170.72 —

(top 25 shown)

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: 2025-11-24
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES MO 2015010648

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Family

NUCC Taxonomy Code: 363LF0000X

License # reported to NPPES MO 2015010648
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Missouri Board of Registration for the Healing Arts.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20150720002496

Enrollment State Jurisdiction

MO

PECOS Control ID

2961715933

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

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

Ssm Medical Group Inc

1345 Smizer Mill Rd, Fenton, MO 630267305

Phone: 6364965023

Secondary Practice Locations

5551 Winghaven Blvd Ste 142

O Fallon, MO 633683618

Phone: 6366952510

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

7 listed
Diane Block , NP

Nurse Practitioner

NPI 1699158196

Nurse Practitioner

Kimberly Daller , FNP-BC

Nurse Practitioner - Family

NPI 1164064440

Family Nurse Practitioner (Board Certified)

NPI 1841725918

Doctor of Medicine (M.D.)

Dr. Susan Gray , MD

Family Medicine

NPI 1003174004

Doctor of Medicine (M.D.)

NPI 1801236393

Doctor of Osteopathic Medicine (D.O.)

Kelcy Oesterreich , NP

Nurse Practitioner - Family

NPI 1417504267

Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
📍
Updated Practice Location November 24, 2025

Registered at 1345 SMIZER MILL RD STE 1100, FENTON, MO 630267305 (Tel: 6364965023)

📍
Updated Business Mailing Address November 24, 2025

Registered at PO BOX 955534, SAINT LOUIS, MO 631955534

âś…
NPI Profile Active May 29, 2015

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) May 29, 2015

Registered at 5551 WINGHAVEN BLVD STE 142, O FALLON, MO 633683618 (Tel: 6366952510)

📍
Business Mailing Address (Initial Record) May 29, 2015

Registered at 5551 WINGHAVEN BLVD STE 142, O FALLON, MO 633683618 (Tel: 6366952510)

👤
Provider Name / Credentials (Initial Record) May 29, 2015

Recorded as HEATHER QUIST, FNP-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 29, 2015

Nurse Practitioner (license number reported to NPPES: MO 2015010648)

🟢
Initial NPI Registration & Enumeration April 07, 2015

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1861888729
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 07, 2015
Last Update: November 24, 2025
Sole Proprietor: No

Other Nurse Practitioners in Fenton

Healthcare providers in Fenton

Mailing Address

Po Box 955534

Saint Louis, MO 631955534

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.