Jamie Oleaga, M.D.
NPI 1265878813 · Gastroenterology Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jamie Oleaga, M.D. is a Gastroenterology Physician provider in Naperville, IL (NPI 1265878813).
Provider details
- NPI number
- 1265878813
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036139484 (IL)
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
13 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
522 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 72 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 58 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 54 | $92 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 48 | $133 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 33 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 132 | 50 |
| Pantoprazole Sodium | 88 | 38 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 70 | 67 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 38 | 38 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 37 | 36 |
| Famotidine | 29 | 12 |
| Dicyclomine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$260 across 11 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
- 2013-05-21
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Jamie Oleaga's NPI number?
- Jamie Oleaga's National Provider Identifier (NPI) is 1265878813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jamie Oleaga's specialty?
- Jamie Oleaga is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jamie Oleaga located?
- Jamie Oleaga's practice location on file with NPPES is 100 Spalding Dr Ste 208, Naperville, IL 60540.
- What is Jamie Oleaga's phone number?
- The practice phone number listed in the NPPES registry for Jamie Oleaga is (630) 717-2600.
- Does Jamie Oleaga accept Medicare?
- Jamie Oleaga is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jamie Oleaga's NPI active?
- Yes — Jamie Oleaga's NPI (1265878813) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.