Doctor profile · Federal record
Dr. Gennadiy Bakis, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Portland, OR
- NPI 1184614455
- Accepts Medicare
- 24 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
1111 Ne 99Th Ave Ste 301
Portland, OR 972209442
(503) 963-2707
fax (503) 963-2802 - Additional location
-
2200 Ne Neff RD Ste 302
Bend, OR 977014279
(541) 706-4220 - Additional location
-
3181 Sw Sam Jackson Park RD
Portland, OR 972393011
(503) 494-4373
fax (503) 494-7556 - Additional location
-
9300 Se 91St Ave Ste 300
Clackamas, OR 970863762 - Additional location
-
161 Marginal Way
Portland, ME 041012438
(207) 773-7964
fax (207) 773-9073 - Mailing address
-
541 Ne 20Th Ave Ste 225
Portland, OR 972322895
Show 2 more locations
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- February 26, 2026
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Oregon #MD151230 · Maine #MD21774
- Medicaid (3)
- WA #2157486 · OR #500623274 · MA #2104016
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1184614455. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
140
Distinct HCPCS
7
Medicare allowed
$18,530
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 31 | 30 | $49 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 29 | 27 | $244 | |
43237 |
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth | 20 | 20 | $177 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 16 | $70 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 15 | 14 | $90 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 14 | 14 | $105 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $169 |
In context: peer comparison
Among 45 peers in Portland Gastroenterology Physician, average services per provider: 59. This provider delivers 2.4× the peer median.Open Payments
Industry payments received
All-time total
$410
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 4 | $409.77 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
126
Patients
70
Total drug cost
$176,291
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Creon (Lipase/Protease/Amylase) | Brand | 40 | 14 | $173,786 |
| Omeprazole | Generic | 30 | 0 | $249 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 22 | 22 | $532 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 19 | 19 | $409 |
| Peg3350-Sod Sul-Nacl-Kcl-Asb-C (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 15 | 15 | $1,314 |
Frequently asked questions
What is Dr. Gennadiy Bakis's medical specialty?
Dr. Gennadiy Bakis practices Gastroenterology Physician in Portland, OR.
Where does Dr. Gennadiy Bakis practice?
Dr. Gennadiy Bakis practices at 1111 Ne 99Th Ave Ste 301, Portland, OR 972209442. Office phone: 5039632707.
What is Dr. Gennadiy Bakis's NPI?
Dr. Gennadiy Bakis's National Provider Identifier (NPI) is 1184614455, issued by NPPES.
Does Dr. Gennadiy Bakis accept Medicare assignment?
Yes. Dr. Gennadiy Bakis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gennadiy Bakis commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (HCPCS 43237). Source: CMS Medicare Physician & Other Practitioners file.