DR. STUART C SEIGEL (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1073763983
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
166 ENDOCRINOLOGY in WA
Provider Addresses for DR. STUART C SEIGEL (MD)
660 SW 39th St
Ste 150
Renton, WA 980574912
Phone: (425) 793-4707
Fax: (425) 656-4046
Type: Location
11, Technology Drive, Irvine Spectrum, Irvine, Orange County, California, 92618, United States
IRVINE, CA 926182302
Phone: (949) 923-3250
Fax: (855) 812-5865
Type: Mailing
Golden Lantern, Laguna Niguel, Orange County, California, 92677, United States
LAGUNA NIGUEL, CA 926775979
Phone: (949) 495-7144
Fax: (949) 495-0270
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $326.
Total Amount is formed as General ($326) + Research ($0) + Ownership ($0) = $326.
Last reported payment date: 2024-04-08 • Largest payer in this snapshot: Corcept Therapeutics ($136).
Total Amount
$326
General + Research + Ownership
Payments
3
Total payment records
General Amount
$326
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Corcept Therapeutics | $136 |
| BETA BIONICS, INC. | $130 |
| Dexcom, Inc. | $60 |
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: 2017-07-11
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 |
|---|---|---|---|---|
| I20170711003484 | I | Endocrinology | 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 |
|---|---|---|---|---|
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 1,498 | 171 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 416 | 136 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 61 | 61 | $0 |
| G0108 | Diabetes outpatient self-management training services, individual, per 30 minutes | 20 | 15 | $0 |
| 99458 | Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 19 | 11 | $0 |
Insurance plans in this area (ZIP 98057)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | IL | |
| Nurse Practitioner | TX | |
| D E R M A T O L O G Y | FL | |
| N E U R O L O G Y | NY | |
| Critical Care (Intensivists), Pulmonary Disease, Hospitalist | MI | |
| Registered Dietitian Or Nutrition Professional | WA | |
| E N D O C R I N O L O G Y | GA | |
| Neuropsychiatry, Psychiatry | CA | |
| Internal Medicine, Rheumatology | CA | |
| Endocrinology, Internal Medicine | CA |
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