JENNY DACI YANG (MD) – Gastroenterology Physician, NPI 1700021987
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,981 GASTROENTEROLOGY in CA
Provider Addresses for JENNY DACI YANG (MD)
231 OConnor Dr
San Jose, CA 951281624
Phone: (408) 347-9001
Fax: (408) 347-9004
Type: Location
200 JOSE FIGUERES AVE STE 180
SAN JOSE, CA 951161586
Phone: (408) 740-3353
Fax: (408) 740-3352
Type: Mailing
200 Jose Figueres Ave Ste 265
San Jose, CA 951161589
Phone: (408) 347-9001
Fax: (408) 347-9004
Type: Location
2331 MONTPELIER DR STE B
SAN JOSE, CA 951161673
Phone: (408) 347-9001
Fax: (408) 347-9004
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 21 Open Payments records for all available years, with a total value of $432.
Total Amount is formed as General ($432) + Research ($0) + Ownership ($0) = $432.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Gilead Sciences, Inc. ($252).
Total Amount
$432
General + Research + Ownership
Payments
21
Total payment records
General Amount
$432
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2012-09-12
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 |
|---|---|---|---|---|
| I20120912000749 | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 308 | 142 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 86 | 84 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 84 | 84 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 83 | 69 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 74 | 74 | $0 |
Insurance plans in this area (ZIP 95128)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | MO | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| G A S T R O E N T E R O L O G Y | CA |
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