Doctor profile · Federal record
Dr. Mark Gerich, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Aurora, CO
- NPI 1578549754
- Accepts Medicare
- MIPS 93.3 / 100 · 2023
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12605 E 16Th Ave
Aurora, CO 800452545
(720) 848-0000 - Mailing address
-
Po Box 110429
Aurora, CO 800420429
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- June 7, 2013
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Colorado #45844
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578549754. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
227
Distinct HCPCS
7
Medicare allowed
$39,824
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 74 | 74 | $254 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 31 | 30 | $135 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 28 | 28 | $181 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 27 | 20 | $145 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 24 | 24 | $113 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 23 | 19 | $145 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 20 | 20 | $92 |
In context: peer comparison
Among 15 peers in this city , average services per provider: 25. This provider delivers 9.1× the peer median.Open Payments
Industry payments received
All-time total
$150
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 2 | $150.36 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
265
Patients
133
Total drug cost
$1,022,971
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 71 | 70 | $1,290 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 46 | 44 | $3,404 |
| Stelara (Ustekinumab) | Brand | 27 | 0 | $705,203 |
| Mesalamine | Generic | 20 | 0 | $16,280 |
| Pantoprazole Sodium | Generic | 19 | 0 | $211 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 19 | 19 | $490 |
| Rinvoq (Upadacitinib) | Brand | 14 | 0 | $98,527 |
| Mesalamine Er (Mesalamine) | Brand | 13 | 0 | $5,051 |
| Sucralfate | Generic | 13 | 0 | $546 |
| Omeprazole | Generic | 12 | 0 | $379 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Gerich's medical specialty?
Dr. Mark Gerich practices Gastroenterology Physician in Aurora, CO.
Where does Dr. Mark Gerich practice?
Dr. Mark Gerich practices at 12605 E 16Th Ave, Aurora, CO 800452545. Office phone: 7208480000.
What is Dr. Mark Gerich's NPI?
Dr. Mark Gerich's National Provider Identifier (NPI) is 1578549754, issued by NPPES.
Does Dr. Mark Gerich accept Medicare assignment?
Yes. Dr. Mark Gerich accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Gerich commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Diagnostic exam of large bowel using a flexible endoscope (HCPCS 45378). Source: CMS Medicare Physician & Other Practitioners file.