Olaya Brewer Gutierrez, MD
NPI 1629420948ActiveIndividual· Internal Medicine, Gastroenterology· Baltimore, MD
Internal Medicine, Gastroenterology (MD) with Johns Hopkins University and 1 other group, practicing in Baltimore, Maryland. 436 Medicare patients in 2024, $125,328 paid; nearly all of their 357 Part D prescriptions were generic (92%). Boston Scientific Corporation was the largest of 3 companies reporting payments in 2025, $22,866 in all, mostly speaking and faculty fees. Lists Johns Hopkins Bayview Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1629420948 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 11, 2016 |
| Last updated in NPPES | Jun 27, 2020 |
| Certified by provider | Jun 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | D86293 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (DC); Practitioner - Gastroenterology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 436 |
|---|---|
| Services billed | 989 across 77 procedure codes |
| Paid by Medicare | $125,328 |
Part D prescriptions in 2024
| Prescriptions (claims) | 357 · 693 30-day fills |
|---|---|
| Patients | 143 |
| Total drug cost | $28,953 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Johns Hopkins UniversityBaltimore, MD · 2,909 clinicians
- Johns Hopkins UniversityBaltimore, MD · 713 clinicians
Hospital affiliations
- Johns Hopkins Bayview Medical CenterBaltimore, MD
- Sibley Memorial HospitalWashington, DC
Industry payments (Open Payments)
- 2025$22,866 · 25 payments from 3 companies
- 2024$29,642 · 27 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $14,834 | 21 |
| Merit Medical Systems Inc | $7,999 | 3 |
| Olympus America Inc. | $32.57 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$13,000 · 4 payments
- Consulting Fee$7,800 · 2 payments
- Travel and Lodging$1,291 · 8 payments
- Food and Beverage$774.28 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Baltimore
- 1023197902
- 1023513397
- 1033472071
- 1043206873
- 1053305763
- 1053521450
- 1063625028
- 1083664312
- 1093801763
- 1104094739
- 1114009263
- 1114912631
All 166 gastroenterologists in Baltimore · All gastroenterologists in Maryland