MS. TRACY ANN SIEGFRIED (M.D.) – Internal Medicine Physician, NPI 1366598591
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for MS. TRACY ANN SIEGFRIED (M.D.)
24331, El Toro Road, Laguna Woods, Orange County, California, 92637, United States
SUITE 360
LAGUNA WOODS, CA 926372752
Phone: (949) 600-7733
Fax: (949) 465-8159
Type: Mailing
24221, Calle de la Louisa, Laguna Hills, Orange County, California, 92653, United States
SUITE 400
LAGUNA HILLS, CA 926537638
Phone: (949) 465-8155
Fax: (949) 465-8159
Type: Location
24221 Calle De La Louisa
Suite 400
Laguna Hills, CA 926537638
Phone: (949) 465-8155
Fax: (949) 465-8159
Type: Location
PO BOX 35380
LAS VEGAS, NV 891335380
Phone:
Type: Mailing
24331 EL TORO RD STE 330
LAGUNA HILLS, CA 926372754
Phone: (949) 716-0833
Fax: (949) 716-0830
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 30 Open Payments records for all available years, with a total value of $646.
Total Amount is formed as General ($646) + Research ($0) + Ownership ($0) = $646.
Last reported payment date: 2023-11-16 • Largest payer in this snapshot: ABBVIE INC. ($103).
Total Amount
$646
General + Research + Ownership
Payments
30
Total payment records
General Amount
$646
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $103 |
| Lilly USA, LLC | $81 |
| AstraZeneca Pharmaceuticals LP | $80 |
| Exact Sciences Corporation | $73 |
| NESTLE HEALTHCARE NUTRITION INC. | $58 |
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: 2004-09-16
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 |
|---|---|---|---|---|
| I20040916000701 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 425 | 252 | $0 |
| G0446 | Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | 232 | 232 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 226 | 226 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 160 | 157 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 125 | 94 | $0 |
Insurance plans in this area (ZIP 92637)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| - | CA | |
| - | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| Physical Therapist In Private Practice | NV | |
| Internal Medicine | CA | |
| - | CA | |
| Internal Medicine, Geriatric Medicine | CA |
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