TONYA FREDERICK (RN, FNP) – Registered Nurse, NPI 1619451697
Registered Nurse
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
16,538 NURSE PRACTITIONER in CA
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Provider Addresses for TONYA FREDERICK (RN, FNP)
4659, Oak Grove Circle, Eagle Rock, Los Angeles, Los Angeles County, California, 90041, United States
LOS ANGELES, CA 900413114
Phone: (626) 644-5927
Type: Mailing
Fairmount Avenue, Pasadena, Los Angeles County, California, 91105, United States
PASADENA, CA 91105
Phone: (626) 795-7051
Fax: (626) 195-1239
Type: Location
855 MONTGOMERY ST
FORT WORTH, TX 761072553
Phone: (817) 735-2228
Fax: (817) 735-2582
Type: Location
714 HARRISON AVE
ASTORIA, OR 971034738
Phone: (503) 791-2434
Type: Mailing
2111 EXCHANGE ST
ASTORIA, OR 971033329
Phone: (503) 325-4321
Type: Location
PO BOX 99335
FORT WORTH, TX 761990335
Phone: (817) 735-2228
Fax: (817) 735-2582
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $76.
Total Amount is formed as General ($76) + Research ($0) + Ownership ($0) = $76.
Last reported payment date: 2024-06-14 • Largest payer in this snapshot: Fresenius Kabi USA, LLC ($27).
Total Amount
$76
General + Research + Ownership
Payments
4
Total payment records
General Amount
$76
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Fresenius Kabi USA, LLC | $27 |
| UCB, Inc. | $20 |
| Lilly USA, LLC | $17 |
| Organon LLC | $13 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2023-10-02
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20210219002546 | I | Nurse Practitioner | OR | TBD |
| I20231002001300 | I | Nurse Practitioner | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 90041)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Social Worker | KY | |
| Nurse Practitioner | AZ | |
| Orthopedic Surgery | IA | |
| Pulmonary Disease | OR | |
| - | OR | |
| Nurse Practitioner | OR | |
| Internal Medicine | OR | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Emergency Medicine | WA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | WA |
Reviews
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