Imelda Andaya Sia, MD
NPI 1013968239ActiveIndividual· Family Medicine· Bloomingdale, IL
Family Medicine (MD) in Bloomingdale, Illinois, licensed in IL, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $897,808 for 10,886 claims, against $53,328 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 12 companies reporting payments in 2025, $1,525 in all, mostly food and beverage. Lists Alexian Brothers Medical Center 1 and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1013968239 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | May 9, 2025 |
| Certified by provider | May 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036087532 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 722 across 19 procedure codes |
| Paid by Medicare | $53,328 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,886 · 27,479 30-day fills |
|---|---|
| Patients | 696 |
| Total drug cost | $897,808 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1978 |
|---|---|
| Medicare specialty | Family Practice |
Hospital affiliations
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- St Alexius Medical CenterHoffman Estates, IL
- Uchicago Medicine Adventhealth GlenoaksGlendale Heights, IL
Industry payments (Open Payments)
- 2025$1,525 · 83 payments from 12 companies
- 2024$2,156 · 120 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $327.73 | 20 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $278.54 | 15 |
| Amgen Inc. | $240.52 | 13 |
| Lilly USA, LLC | $186.63 | 12 |
| Bayer Healthcare Pharmaceuticals Inc. | $182.66 | 8 |
What the 2025 payments were for
- Food and Beverage$1,525 · 83 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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