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Dr. Michael Scott Unnerstall , DC

Chiropractor • Ballwin, MO

Active NPI 1043210222 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

15945 Clayton Rd Ste 230c
Ballwin, MO 630112491

Call 6362565200 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

15945 Clayton Rd Ste 230c

Ballwin, MO 630112491

Telephone 6362565200
Organization at the Same NPPES Address or Phone
Mercy Hospitals East Communities Facility NPI 1790720282

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 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: Mercy Hospital South; Mercy Hospitals East Communities. 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

Medical School

Logan College Of Chiropractic

Graduation Year

1997

Medicare patients

93 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 $25,656 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 $17,793 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.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $13.66 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.

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.

Guide: How to read an Open Payments record

Years since graduation

29 years (graduated 1997)

CMS Doctors and Clinicians data list 1997 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

2005

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)

Dr. Unnerstall 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

Compared with the same specialty in Ballwin and Missouri

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 85% of clinicians listed under Chiropractor in Missouri (2024, 725 clinicians with data). Median for this group: 352. Middle half: 177 to 621.

Too few clinicians listed under Chiropractor in Ballwin have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 80% of clinicians listed under Chiropractor in Missouri (2024, 725 clinicians with data). Median for this group: $12,493. Middle half: $6,222 to $21,773.

Too few clinicians listed under Chiropractor in Ballwin have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 80% of clinicians listed under Chiropractor in Missouri (2024, 725 clinicians with data). Median for this group: $8,659. Middle half: $4,223 to $15,217.

Too few clinicians listed under Chiropractor in Ballwin have Medicare Part B data for 2024 to compare.

39 active clinicians are listed under Chiropractor with a practice address in Ballwin, MO (2,538 in Missouri).

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

Telehealth indicator in Ballwin

0% of these 39 clinicians have the CMS telehealth indicator.

28.2% of these 39 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (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 · 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 2024

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $13.66.

Manufacturer Payment Nature Product Type Amount ($)
ABBVIE INC.
Food and Beverage
In-kind items and services
EPKINLY General $13.66

Source: CMS Open Payments, program year 2024, 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 2016–2023 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, 2017–2024; 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
98941 Chiropractic manipulative treatment, 3-4 spinal regions
284 44 $67.00 $32.24
98940 Chiropractic manipulative treatment, 1-2 spinal regions
270 45 $55.00 $21.04
98941 Chiropractic manipulative treatment, 3-4 spinal regions
227 29 $67.00 $32.19
98940 Chiropractic manipulative treatment, 1-2 spinal regions
170 22 $55.00 $20.66

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.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-10-05
Chiropractor Primary Specialty

NUCC Taxonomy Code: 111N00000X

License # reported to NPPES MO 006570

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

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 - CHIROPRACTIC

Medicare Enrollment ID

I20040923000871

Enrollment State Jurisdiction

MO

PECOS Control ID

2567359946

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

Mercy Hospital South

10010 Kennerly Rd, Saint Louis, MO 631282106

Phone: 3145251906

Mercy Hospital South

10050 Kennerly Rd, Saint Louis, MO 631282106

Phone: 3145254250

Mercy Hospitals East Communities

15945 Clayton Rd, Ballwin, MO 630112490

Phone: 6362565200

Mercy Hospitals East Communities

615 S New Ballas Rd Administration B, St Louis, MO 631418221

Secondary Practice Locations

12700 Southfork Rd Ste 155

Saint Louis, MO 631283276

Phone: 3145254915

Clinicians Sharing This Practice Address or Phone

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

4 listed
NPI 1891047486

Doctor of Chiropractic

Dr. Octavio Chirino , MD

Obstetrics & Gynecology

NPI 1598718058

Doctor of Medicine (M.D.)

NPI 1770752016

Doctor of Chiropractic

NPI 1427584564

Doctor of Chiropractic

Career & Practice History Timeline

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

7 Historical Events
📍
Updated Practice Location October 05, 2023

Registered at 15945 CLAYTON RD STE 230C, BALLWIN, MO 630112491 (Tel: 6362565200)

âś…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 08, 2007

Registered at 1503 ZERO AVE, WASHINGTON, MO 630904714 (Tel: 6362390037)

📍
Business Mailing Address (Initial Record) July 08, 2007

Registered at 1503 ZERO AVE, WASHINGTON, MO 630904714 (Tel: 6362390037)

👤
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as MICHAEL UNNERSTALL, DC

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Chiropractor (license number reported to NPPES: MO 006570)

🟢
Initial NPI Registration & Enumeration July 28, 2005

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1043210222
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 28, 2005
Last Update: October 05, 2023
Sole Proprietor: No

Other Chiropractors in Ballwin

All Chiropractors in Ballwin

More public profiles in Missouri

Directory navigation, in NPI number order.

Mailing Address

1503 Zero Ave

Washington, MO 630904714

Phone: 6362390037

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.