Doctor profile · Federal record

Dr. Jonathan Buck, MD, MPH

Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Student in an Organized Health Care Education/Training Program · Saint Louis, MO

  • NPI 1861847790
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1402 S Grand Blvd, 14Th Floor Fdt
Saint Louis, MO 631041004
(314) 577-8762
fax (314) 577-8100
Additional location
1101 W Liberty St
Farmington, MO 636401921
(573) 705-1272
Mailing address
2340 Lafayette Ave, Unit 3K
Saint Louis, MO 631042516

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
August 26, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #2021012535

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861847790. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
524
Distinct HCPCS
5
Medicare allowed
$69,945
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 224 216 $169
99497 Advance care planning, first 30 minutes 192 188 $73
99291 Critical care, first 30-74 minutes 58 56 $207
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 28 27 $116
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 22 22 $127

In context: peer comparison

Among 216 peers in Saint Louis Internal Medicine Physician, average services per provider: 171. This provider delivers 3.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$46
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 2 $46.14

By nature of payment

Food and Beverage
$46

Frequently asked questions

Auto-generated from federal data
What is Dr. Jonathan Buck's medical specialty?
Dr. Jonathan Buck practices Internal Medicine Physician in Saint Louis, MO.
Where does Dr. Jonathan Buck practice?
Dr. Jonathan Buck practices at 1402 S Grand Blvd, Saint Louis, MO 631041004. Office phone: 3145778762.
What is Dr. Jonathan Buck's NPI?
Dr. Jonathan Buck's National Provider Identifier (NPI) is 1861847790, issued by NPPES.
Does Dr. Jonathan Buck accept Medicare assignment?
Yes. Dr. Jonathan Buck accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Buck commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Advance care planning (HCPCS 99497); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.