JENNIFER OLIVIA CHAN (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1265634687
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
489 THORACIC SURGERY in CA
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Provider Addresses for JENNIFER OLIVIA CHAN (M.D.)
Mowry Avenue, Fremont, Alameda County, California, 94560, United States
FREMONT, CA 945381605
Phone: (510) 248-1000
Type: Mailing
Civic Center Drive, Fremont, Alameda County, California, 94536, United States
FREMONT, CA 945385878
Phone: (510) 248-1400
Fax: (510) 797-0301
Type: Location
2637 SHADELANDS DR
WALNUT CREEK, CA 945982512
Phone: (925) 932-6330
Fax: (925) 932-0139
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 $1,230.
Total Amount is formed as General ($1,230) + Research ($0) + Ownership ($0) = $1,230.
Last reported payment date: 2024-11-18 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($478).
Total Amount
$1,230
General + Research + Ownership
Payments
21
Total payment records
General Amount
$1,230
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $478 |
| E.R. Squibb & Sons, L.L.C. | $241 |
| Davol Inc. | $151 |
| Medtronic, Inc. | $105 |
| Galvanize Therapeutics, Inc | $104 |
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: 2010-09-07
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 |
|---|---|---|---|---|
| I20100907000633 | I | Thoracic Surgery | 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 |
|---|---|---|---|---|
| 31627 | Computer-assisted image-guided navigation of lung airways using an endoscope | 12 | 12 | $0 |
| 43282 | Repair of hernia of muscle at esophagus and stomach with implantation of mesh using an endoscope | 12 | 12 | $0 |
Insurance plans in this area (ZIP 94538)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| General Surgery | CA | |
| N E U R O S U R G E R Y | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| P O D I A T R Y | CA | |
| - | CA | |
| E N D O C R I N O L O G Y | KS | |
| Qualified Audiologist | CA |
Reviews
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