Esther Hyatt, PAC
NPI 1689900755ActiveIndividual· Physician Assistant· Rockville, MD
Physician Assistant (PAC) with Mep Observation Services LLC, practicing in Rockville, Maryland. Medicare paid $34,693 for services to 281 patients in 2024. Acadia Pharmaceuticals Inc reported $113.44 in payments in 2025, mostly food and beverage. Lists Adventist Healthcare Shady Grove Medical Center as a hospital affiliation.
Overview
| NPI | 1689900755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Oct 26, 2009 |
| Last updated in NPPES | Dec 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | C4068 | MD |
| Internal Medicine | 207R00000X | C0004068 | 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 - Physician Assistant (DC); Practitioner - Physician Assistant (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 281 |
|---|---|
| Services billed | 301 across 5 procedure codes |
| Paid by Medicare | $34,693 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mep Observation Services LLCRockville, MD · 44 clinicians
Hospital affiliation
- Adventist Healthcare Shady Grove Medical CenterRockville, MD
Industry payments (Open Payments)
- 2025$113.44 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Acadia Pharmaceuticals Inc | $113.44 | 1 |
What the 2025 payments were for
- Food and Beverage$113.44 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 123 physician assistants in Rockville · All physician assistants in Maryland