Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nathaniel Wachter, MD

Individual provider Neurology Physician · NPI 1922492123

Nathaniel Wachter, MD practises Neurology in Saint Louis, Missouri. Graduated from Southern Illinois University School of Medicine in 2015, 11 years ago. Practices with Mercy Clinic Neurology, LLC, a 21-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
11
Trained at
Southern Illinois University School of Medicine
Licensed in
MO
In the registry since
2015
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

621 S New Ballas Rd # Towerb
Saint Louis, MO 63141-8232
Phone: (314) 251-6075
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3599 Rainbow Blvd # Ms 2012, Kansas City, KS 66103-2078 — (913) 588-6970

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 2021022166 (MO)

Record details

NPI number1922492123
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2015
Last updated in NPPESJune 21, 2021
Certification dateJune 21, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Mercy Clinic Neurology, Llc — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients370
Services billed 14,823 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,293 61 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Mercy Clinic Neurology, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 21 clinicians in the practice; 11 are shown here.

Other providers in Saint Louis