Olaya Brewer Gutierrez, MD
NPI 1629420948 · Gastroenterology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olaya Brewer Gutierrez, MD is a Gastroenterology Physician provider in Baltimore, MD (NPI 1629420948).
Provider details
- NPI number
- 1629420948
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D86293 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
805 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 157 | $94 |
| Study of Esophagus to Assess Movement91010 | 75 | $68 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 | 68 | $51 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 64 | $232 |
| Ultrasound Guided Needle Aspiration Or Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43242 | 46 | $248 |
| Monitoring and Recording of Esophageal Function Through a Capsule Attached to the Esophagus Wall |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 79 | 31 |
| Omeprazole | 64 | 25 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 43 | 43 |
| Pantoprazole Sodium | 26 | — |
| Esomeprazole Magnesium | 21 | — |
| Rabeprazole Sodium | 13 | — |
| Ondansetronbrand: Ondansetron Odt | 12 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29,642 across 27 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-07-11
- Last updated
- 2020-06-27
- Certified
- 2020-06-27
Frequently asked questions
- What is Olaya Brewer Gutierrez's NPI number?
- Olaya Brewer Gutierrez's National Provider Identifier (NPI) is 1629420948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olaya Brewer Gutierrez's specialty?
- Olaya Brewer Gutierrez is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Olaya Brewer Gutierrez located?
- Olaya Brewer Gutierrez's practice location on file with NPPES is 1800 Orleans St, Baltimore, MD 21287-0010.
- What is Olaya Brewer Gutierrez's phone number?
- The practice phone number listed in the NPPES registry for Olaya Brewer Gutierrez is (410) 502-3699.
- Does Olaya Brewer Gutierrez accept Medicare?
- Olaya Brewer Gutierrez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olaya Brewer Gutierrez's NPI active?
- Yes — Olaya Brewer Gutierrez's NPI (1629420948) is active in the NPPES registry as of the last update on 2020-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.