JACK C FENG (M.D.) – Gastroenterology Physician, NPI 1710964481
Gastroenterology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,990 GASTROENTEROLOGY in CA
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Provider Addresses for JACK C FENG (M.D.)
Medical Center Road, Mission Viejo, Orange County, California, 92690-9998, United States
MISSION VIEJO, CA 926916406
Phone: (949) 364-5090
Type: Mailing
Daniel Jeffrey Cohen, DDS, 27871, Medical Center Road, Mission Viejo, Orange County, California, 92691, United States
SUITE 200
MISSION VIEJO, CA 926916404
Phone: (949) 364-5090
Fax: (949) 542-8710
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 317 Open Payments records for all available years, with a total value of $7,465.
Total Amount is formed as General ($7,465) + Research ($0) + Ownership ($0) = $7,465.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($2,795).
Total Amount
$7,465
General + Research + Ownership
Payments
317
Total payment records
General Amount
$7,465
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $2,795 |
| Janssen Biotech, Inc. | $466 |
| NESTLE HEALTHCARE NUTRITION INC. | $407 |
| AIMMUNE THERAPEUTICS, INC. | $346 |
| Takeda Pharmaceuticals U.S.A., Inc. | $324 |
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: 2010-03-17
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20100317000149 | I | Gastroenterology | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 204 | 204 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 154 | 154 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 122 | 103 | $0 |
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 116 | 115 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 104 | 102 | $0 |
Insurance plans in this area (ZIP 92691)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CA | |
| - | CA | |
| - | CA | |
| - | WA | |
| - | ME | |
| - | CA | |
| - | CA | |
| Physician Assistant | CA | |
| - | CA | |
| Nurse Practitioner | CA |
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