Doctor profile · Federal record
Dr. Ruben Aymerich, MD
Gastroenterology Physician (CMS: Gastroenterology) · Hepatology Physician · Saint Louis, MO
- NPI 1609858562
- Accepts Medicare
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
6400 Clayton RD Ste 216
Saint Louis, MO 631171850
(314) 646-7848 - Additional location
-
621 S New Ballas RD, Ste 1001B
Saint Louis, MO 631418232
(314) 251-5660
fax (314) 251-5663 - Mailing address
-
Po Box 955534
Saint Louis, MO 631955534
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- November 19, 2020
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Missouri #111010
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609858562. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
571
Distinct HCPCS
10
Medicare allowed
$68,098
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 102 | 64 | $77 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 92 | 74 | $64 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 67 | 67 | $130 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 56 | 55 | $169 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 51 | 51 | $242 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 45 | 45 | $88 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 34 | 34 | $174 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 32 | 26 | $95 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 23 | 23 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 21 | 21 | $126 |
In context: peer comparison
Among 42 peers in this city , average services per provider: 60. This provider delivers 9.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
464
Patients
119
Total drug cost
$50,551
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 134 | 60 | $2,293 |
| Dicyclomine Hcl | Generic | 52 | 15 | $1,183 |
| Prednisone | Generic | 36 | 14 | $418 |
| Omeprazole | Generic | 31 | 13 | $274 |
| Sodium Chloride (0.9 % Sodium Chloride) | Brand | 31 | 0 | $1,561 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 30 | 0 | $2,961 |
| Diphenhydramine Hcl | Generic | 24 | 0 | $4,679 |
| Linzess (Linaclotide) | Brand | 23 | 0 | $16,138 |
| Metronidazole | Generic | 20 | 17 | $258 |
| Metoclopramide Hcl | Generic | 19 | 0 | $172 |
Frequently asked questions
What is Dr. Ruben Aymerich's medical specialty?
Dr. Ruben Aymerich practices Gastroenterology Physician in Saint Louis, MO.
Where does Dr. Ruben Aymerich practice?
Dr. Ruben Aymerich practices at 6400 Clayton RD Ste 216, Saint Louis, MO 631171850. Office phone: 3146467848.
What is Dr. Ruben Aymerich's NPI?
Dr. Ruben Aymerich's National Provider Identifier (NPI) is 1609858562, issued by NPPES.
Does Dr. Ruben Aymerich accept Medicare assignment?
Yes. Dr. Ruben Aymerich accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ruben Aymerich commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.