Doctor profile · Federal record
Dr. Matthew Nissing, MD
Gastroenterology Physician · Saint Louis, MO
- NPI 1558324418
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
915 N Grand Blvd
Saint Louis, MO 631061621
(314) 289-6434 - Mailing address
-
201 Bjc Saint Peters Dr, Suite 100
Saint Peters, MO 633763091
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 3, 2024
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Missouri #2002007106
- Medicaid
- MO #200603702
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558324418. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
933
Distinct HCPCS
10
Medicare allowed
$103,791
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 240 | 196 | $87 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 171 | 78 | $76 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 101 | 99 | $242 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 90 | 81 | $127 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 81 | 79 | $77 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 78 | 78 | $145 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 62 | 62 | $70 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 45 | 45 | $108 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 23 | 21 | $122 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 16 | 15 | $114 |
In context: peer comparison
Among 42 peers in Saint Louis Gastroenterology Physician, average services per provider: 60. This provider delivers 16× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,318
Patients
460
Total drug cost
$159,935
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 513 | 175 | $7,225 |
| Famotidine | Generic | 214 | 67 | $1,985 |
| Omeprazole | Generic | 159 | 58 | $2,109 |
| Mesalamine | Generic | 83 | 19 | $80,515 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 69 | 69 | $11,548 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 51 | 50 | $779 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 47 | 0 | $18,311 |
| Colestipol Hcl | Generic | 41 | 11 | $4,817 |
| Linzess (Linaclotide) | Brand | 31 | 0 | $26,957 |
| Azathioprine | Generic | 21 | 0 | $1,803 |
Frequently asked questions
What is Dr. Matthew Nissing's medical specialty?
Dr. Matthew Nissing practices Gastroenterology Physician in Saint Louis, MO.
Where does Dr. Matthew Nissing practice?
Dr. Matthew Nissing practices at 915 N Grand Blvd, Saint Louis, MO 631061621. Office phone: 3142896434.
What is Dr. Matthew Nissing's NPI?
Dr. Matthew Nissing's National Provider Identifier (NPI) is 1558324418, issued by NPPES.
What procedures does Dr. Matthew Nissing commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.