Issa Tew Lo, CRNP
NPI 1013546100ActiveIndividual· Nurse Practitioner, Acute Care· Frederick, MD
Nurse Practitioner, Acute Care (CRNP) with Post Acute Specialists LLC, practicing in Frederick, Maryland. Their prescriptions cost Medicare Part D more than their services did: $78,200 for 999 claims, against $6,716 paid for services in 2024. Dexcom, Inc. was the largest of 3 companies reporting payments in 2025, $242.52 in all, mostly food and beverage.
Overview
| NPI | 1013546100 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | Yes |
| NPI issued | Apr 2, 2020 |
| Last updated in NPPES | Dec 6, 2021 |
| Certified by provider | Nov 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | R182467 | MD |
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 - Nurse Practitioner (CT); Practitioner - Nurse Practitioner (DC); Practitioner - Nurse Practitioner (MD); Practitioner - Nurse Practitioner (PA); Practitioner - Nurse Practitioner (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 75 |
|---|---|
| Services billed | 137 across 9 procedure codes |
| Paid by Medicare | $6,716 |
Part D prescriptions in 2024
| Prescriptions (claims) | 999 · 1,003 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $78,200 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Post Acute Specialists LLCElkton, MD · 187 clinicians
Industry payments (Open Payments)
- 2025$242.52 · 3 payments from 3 companies
- 2024$482.21 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $114.68 | 1 |
| Daiichi Sankyo Inc. | $107.91 | 1 |
| Gilead Sciences, Inc. | $19.93 | 1 |
What the 2025 payments were for
- Food and Beverage$242.52 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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