Htoo Htoo Aung, MD
NPI 1942615075ActiveIndividual· Internal Medicine· Monterey Park, CA
Internal Medicine (MD) with Inpatient Specialists of California PC and 1 other group, practicing in Monterey Park, California. Their prescriptions cost Medicare Part D more than their services did: $273,884 for 2,866 claims, against $37,009 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $33.28 in payments in 2025, mostly food and beverage. Lists St Bernardine Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1942615075 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 27, 2014 |
| Last updated in NPPES | Jun 12, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A147792 | CA |
| Internal Medicine | 207R00000X | LT-3875 | NH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA); Practitioner - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 434 across 20 procedure codes |
| Paid by Medicare | $37,009 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,866 · 6,431 30-day fills |
|---|---|
| Patients | 165 |
| Total drug cost | $273,884 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Inpatient Specialists of California PCOakdale, CA · 385 clinicians
- Arcadia Hospitalist Medical Group IncArcadia, CA · 30 clinicians
Hospital affiliations
- St Bernardine Medical CenterSan Bernardino, CA
- St Johns Regional Medical CenterOxnard, CA
- Usc Arcadia HospitalArcadia, CA
Other facilities
- Happy Home Health ServicesHome health agency · Arcadia, CA
Industry payments (Open Payments)
- 2025$33.28 · 2 payments from 1 company
- 2024$44.23 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $33.28 | 2 |
What the 2025 payments were for
- Food and Beverage$33.28 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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