KAREN SIMPSON (MD) – Dermatology Physician, NPI 1376544189
Dermatology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
2,140 DERMATOLOGY in CA
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Provider Addresses for KAREN SIMPSON (MD)
West Imperial Highway, Downtown Brea, Brea, Orange County, California, 92821, United States
BREA, CA 928213812
Phone: (714) 626-6310
Fax: (714) 626-6320
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 12 Open Payments records for all available years, with a total value of $459.
Total Amount is formed as General ($459) + Research ($0) + Ownership ($0) = $459.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($258).
Total Amount
$459
General + Research + Ownership
Payments
12
Total payment records
General Amount
$459
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $258 |
| GENZYME CORPORATION | $156 |
| Regeneron Healthcare Solutions, Inc. | $29 |
| Amgen Inc. | $16 |
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: 2005-06-16
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 |
|---|---|---|---|---|
| I20050616001233 | I | Dermatology | 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 | 348 | 267 | $0 |
| 17003 | Destruction of precancer skin growth, 2-14 growths | 305 | 86 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 160 | 123 | $0 |
| 11102 | Biopsy of related skin growth, first growth | 138 | 122 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 102 | 83 | $0 |
Insurance plans in this area (ZIP 92821)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CA | |
| - | CA | |
| - | CA | |
| - | WA | |
| - | ME | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA |
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