KAREN CHESTNUT (FNP) – Family Nurse Practitioner, NPI 1144577347
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
16,360 NURSE PRACTITIONER in CA
Provider Addresses for KAREN CHESTNUT (FNP)
1600 N ROSE AVE
OXNARD, CA 930303722
Phone: (805) 550-4478
Type: Location
537 JEFFREY DR
SAN LUIS OBISPO, CA 934051003
Phone: (805) 550-4478
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $36.
Total Amount is formed as General ($36) + Research ($0) + Ownership ($0) = $36.
Last reported payment date: 2024-04-04 • Largest payer in this snapshot: Janssen Scientific Affairs, LLC ($36).
Total Amount
$36
General + Research + Ownership
Payments
1
Total payment records
General Amount
$36
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Scientific Affairs, LLC | $36 |
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: 2012-09-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20120924000192 | I | Nurse Practitioner | CA | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 170 | 121 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 102 | 81 | $0 |
| 99348 | Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 53 | 38 | $0 |
| 99349 | Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 34 | 27 | $0 |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | 31 | 29 | $0 |
Insurance plans in this area (ZIP 93030)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| Physician Assistant | CA | |
| Internal Medicine, Emergency Medicine | CA | |
| Nurse Practitioner | TN | |
| Physical Medicine And Rehabilitation | CA | |
| N E U R O L O G Y | CA | |
| Family Practice | CA | |
| Orthopedic Surgery | NH | |
| Hand Surgery | CA | |
| Orthopedic Surgery | CA |
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