Tamara Kay Chaker, N.P./C.N.S.
NPI 1447491147ActiveIndividual· Nurse Practitioner· Orange, CA
Nurse Practitioner (N.P./C.N.S.) with Uc Regents, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $232,234 for 1,011 claims, against $71,902 paid for services in 2024. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $177.64 in all, mostly food and beverage. Lists Providence St. Jude Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1447491147 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | N.P./C.N.S. |
| Sole proprietor | No |
| NPI issued | Mar 10, 2009 |
| Last updated in NPPES | Jan 16, 2024 |
| Certified by provider | Jan 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 603377 | CA |
| Nurse Practitioner, Acute Care | 363LA2100X | 603377 | CA |
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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 550 |
|---|---|
| Services billed | 1,034 across 15 procedure codes |
| Paid by Medicare | $71,902 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,011 · 2,180 30-day fills |
|---|---|
| Patients | 258 |
| Total drug cost | $232,234 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliations
- Providence St. Jude Medical CenterFullerton, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$177.64 · 3 payments from 3 companies
- 2024$361.53 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $116.66 | 1 |
| Novartis Pharmaceuticals Corporation | $33.05 | 1 |
| E.R. Squibb & Sons, L.L.C. | $27.93 | 1 |
What the 2025 payments were for
- Food and Beverage$177.64 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner providers in Orange
- 1275101800
- 1679326383
- 1447149596
- 1528297157
- 1023225281
- 1659774560
- 1376816785
- 1225113293
- 1952557191
- 1780875005
- 1205245560
- 1811446214