Dr. Christopher S. Cronin, M.D.
General Surgery (Surgery Physician)
226 S Woods Mill Rd, Suite 49 W
Chesterfield, MO 63017
Who else practices at this address →
St. Louis County includes dental (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Georgetown University School of Medicine (1989)
- Years since graduation
- 37
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 295
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1989Medical school: Georgetown University School of Medicine
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Surgery Physician primary
MO license 11129
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- St Lukes Hospital Chesterfield, MO
Medical groups
- St Lukes Medical Group (16 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 295
- Services billed
- 776
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 155 | 64 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 131 | 120 |
| New patient office or other outpatient visit, 30-44 minutes | 80 | 80 |
| Established patient office or other outpatient visit, 20-29 minutes | 51 | 44 |
| Established patient office or other outpatient visit, 10-19 minutes | 49 | 32 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 28 | 14 |
| Removal of gallbladder using an endoscope | 27 | 27 |
| New patient office or other outpatient visit, 45-59 minutes | 25 | 25 |
| Insertion of central venous tube with port (5 years or older) | 21 | 21 |
| Repair of groin hernia (5 years or older) | 14 | 13 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Chesterfield, MO | 130 |
| Cephalexin Other prescribers in Chesterfield, MO | 61 |
| Tramadol Hcl Other prescribers in Chesterfield, MO | 43 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 4 companies reported 5 payments worth $143 in total to this clinician.
| Aroa Biosurgery Incorporated | $55.09 |
|---|---|
| Smith+nephew, Inc. | $39.80 |
| Kerecis Limited | $29.66 |
| Solventum Corporation | $18.68 |
| Food and Beverage | $143 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.