ANITA KAY GREGORY (M.D.) – Colon & Rectal Surgery Physician, NPI 1881655868
Colon & Rectal Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
251 COLORECTAL SURGERY (PROCTOLOGY) in CA
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Provider Addresses for ANITA KAY GREGORY (M.D.)
West La Veta Avenue, Orange, Orange County, California, 92686, United States
SUITE 470
ORANGE, CA 928684304
Phone: (714) 835-8300
Fax: (714) 835-8304
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 6 Open Payments records for all available years, with a total value of $257.
Total Amount is formed as General ($257) + Research ($0) + Ownership ($0) = $257.
Last reported payment date: 2024-08-07 • Largest payer in this snapshot: Axonics, Inc. ($129).
Total Amount
$257
General + Research + Ownership
Payments
6
Total payment records
General Amount
$257
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Axonics, Inc. | $129 |
| Exact Sciences Corporation | $45 |
| Aroa Biosurgery Incorporated | $36 |
| Davol Inc. | $33 |
| Integra LifeSciences Corporation | $13 |
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: 2009-06-02
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 |
|---|---|---|---|---|
| I20090602000082 | I | Colorectal Surgery (Proctology) | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 112 | 112 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 75 | 64 | $0 |
| 45378 | Diagnostic exam of large bowel using a flexible endoscope | 36 | 36 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 32 | 30 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 13 | 13 | $0 |
Insurance plans in this area (ZIP 92868)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Colorectal Surgery (Proctology), General Surgery | CA | |
| General Surgery, General Practice | CA | |
| General Surgery | CA | |
| General Surgery | CA | |
| General Surgery | CA | |
| General Surgery | CA |
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