Doctor profile · Federal record
Dr. Ervin Eaker, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Shawnee, KS
- NPI 1427007764
- Accepts Medicare
- MIPS 13.6 / 100 · 2023
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
7230 Renner RD
Shawnee, KS 662179901
(913) 631-2600
fax (913) 962-2422 - Additional location
-
6850 Hilltop RD, Suite170
Shawnee, KS 662263532
(913) 248-8008
fax (913) 248-8668 - Mailing address
-
6850 Hilltop RD, Suite170
Shawnee, KS 662263532
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- October 2, 2025
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Kansas #04-26513
- Medicaid (2)
- MO #208648014 · KS #2085556603
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427007764. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
965
Distinct HCPCS
10
Medicare allowed
$108,089
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 202 | 200 | $82 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 129 | 129 | $146 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 109 | 48 | $75 | |
43450 |
Dilation of esophagus | 102 | 102 | $37 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 82 | 82 | $172 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 68 | 58 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 66 | 60 | $123 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 56 | 56 | $237 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 51 | 51 | $167 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 40 | 39 | $120 |
In context: peer comparison
Among 3 peers in Shawnee Gastroenterology Physician, average services per provider: 69. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$2,245
Transactions
118
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 33 | $456.72 | |
| Takeda Pharmaceuticals U.S.A., INC. | 19 | $392.33 | |
| Lilly USA, LLC | 15 | $367.05 | |
| Janssen Biotech, INC. | 14 | $345.80 | |
| Pfizer INC. | 16 | $244.63 | |
| Merck Sharp & Dohme LLC | 5 | $91.99 | |
| Phathom Pharmaceuticals, INC. | 3 | $70.52 | |
| Celltrion USA INC. | 2 | $37.98 | |
| Celgene Corporation | 2 | $37.93 | |
| Regeneron Healthcare Solutions, INC. | 1 | $33.87 | |
| Micro-Tech Endoscopy USA, INC. | 3 | $32.27 | |
| Braintree Laboratories, INC. | 2 | $28.63 | |
| Sandoz INC. | 1 | $22.89 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $22.84 | |
| Ironwood Pharmaceuticals, INC | 1 | $22.16 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
742
Patients
215
Total drug cost
$338,000
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 378 | 114 | $4,599 |
| Famotidine | Generic | 87 | 28 | $1,923 |
| Sucralfate | Generic | 87 | 41 | $2,020 |
| Omeprazole | Generic | 45 | 15 | $747 |
| Dicyclomine Hcl | Generic | 29 | 17 | $531 |
| Esomeprazole Magnesium | Generic | 21 | 0 | $474 |
| Amitriptyline Hcl | Generic | 16 | 0 | $241 |
| Colestipol Hcl | Generic | 16 | 0 | $2,734 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 14 | 0 | $481 |
| Linzess (Linaclotide) | Brand | 13 | 0 | $7,147 |
Hospital affiliations
Frequently asked questions
What is Dr. Ervin Eaker's medical specialty?
Dr. Ervin Eaker practices Gastroenterology Physician in Shawnee, KS.
Where does Dr. Ervin Eaker practice?
Dr. Ervin Eaker practices at 7230 Renner RD, Shawnee, KS 662179901. Office phone: 9136312600.
What is Dr. Ervin Eaker's NPI?
Dr. Ervin Eaker's National Provider Identifier (NPI) is 1427007764, issued by NPPES.
Does Dr. Ervin Eaker accept Medicare assignment?
Yes. Dr. Ervin Eaker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ervin Eaker commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.