DR. MARK S GARRISON (DO) – Obstetrics & Gynecology Physician, NPI 1801881503
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,008 OBSTETRICS/GYNECOLOGY in CA
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Provider Addresses for DR. MARK S GARRISON (DO)
The UPS Store, 702, Mangrove Avenue, Chico, Butte County, California, 95926, United States
PMB 313
CHICO, CA 959263948
Phone: (530) 566-0132
Fax: (530) 566-1682
Type: Mailing
1025, Village Lane, Chico, Butte County, California, 95926, United States
CHICO, CA 959262812
Phone: (530) 566-0132
Fax: (530) 566-1682
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 71 Open Payments records for all available years, with a total value of $79,273.
Total Amount is formed as General ($79,273) + Research ($0) + Ownership ($0) = $79,273.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($79,183).
Total Amount
$79,273
General + Research + Ownership
Payments
71
Total payment records
General Amount
$79,273
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $79,183 |
| Pacira Pharmaceuticals Incorporated | $90 |
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: 2007-07-05
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 |
|---|---|---|---|---|
| I20070705000319 | I | Obstetrics/Gynecology | 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 95926)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | AZ | |
| Nurse Practitioner | CA | |
| Diagnostic Radiology | TX | |
| Physician Assistant | CA | |
| Diagnostic Radiology | ME | |
| Physician Assistant | TX | |
| Physician Assistant | CA | |
| - | CA | |
| Nurse Practitioner | CA | |
| Emergency Medicine | CA |
Reviews
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