MATTHEW SIMS FIESS (PA) – Physician Assistant, NPI 1477080869
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
10,570 PHYSICIAN ASSISTANT in CA
Provider Addresses for MATTHEW SIMS FIESS (PA)
355 Abbott St Ste 100
Salinas, CA 939014484
Phone: (831) 751-7070
Type: Location
DEPT LA 24403
PASADENA, CA 911850001
Phone: (831) 675-3601
Fax: (831) 675-3966
Type: Mailing
100 WILSON RD STE 100
MONTEREY, CA 939407885
Phone: (831) 242-8394
Type: Mailing
850, 5th Street, Gonzales, Monterey County, California, 93926, United States
GONZALES, CA 939269491
Phone: (831) 675-3601
Fax: (831) 675-3966
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 68 Open Payments records for all available years, with a total value of $1,196.
Total Amount is formed as General ($1,196) + Research ($0) + Ownership ($0) = $1,196.
Last reported payment date: 2024-06-18 • Largest payer in this snapshot: Novo Nordisk Inc ($297).
Total Amount
$1,196
General + Research + Ownership
Payments
68
Total payment records
General Amount
$1,196
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $297 |
| Mylan Specialty L.P. | $246 |
| Lilly USA, LLC | $203 |
| ABBVIE INC. | $157 |
| GlaxoSmithKline, LLC. | $45 |
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: 2017-06-28
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 |
|---|---|---|---|---|
| I20170628003508 | I | Physician Assistant | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 93901)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA | |
| - | CA | |
| Physician Assistant | CA | |
| Physician Assistant | MA | |
| Nurse Practitioner | CA | |
| - | CA | |
| Family Practice | CA | |
| Physician Assistant | CA | |
| - | CA | |
| G A S T R O E N T E R O L O G Y | CA |
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