DR. MATTHEW ULYSSES JANSSEN (M.D..) – Emergency Medicine Physician, NPI 1497857023
Emergency Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
638 HOSPICE/PALLIATIVE CARE in CA
Loading map...
Provider Addresses for DR. MATTHEW ULYSSES JANSSEN (M.D..)
2100 Powell Street, Bay Trail, Emeryville, Alameda County, California, 94608, United States
SUITE 900
EMERYVILLE, CA 946081826
Phone: (510) 350-2600
Fax: (510) 879-9100
Type: Mailing
Pomona Valley Hospital Medical Center, 1798, North Garey Avenue, Pomona, Los Angeles County, California, 91767, United States
POMONA, CA 917672918
Phone: (909) 865-9600
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2025-12-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20050706000409 | I | Hospice/Palliative Care | CA | TBD |
| I20250825003035 | I | Hospice/Palliative Care | WA | TBD |
| I20251230001004 | I | Emergency Medicine | OR | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 231 | 127 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 230 | 122 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 209 | 203 | $0 |
| 99497 | Advance care planning, first 30 minutes | 192 | 187 | $0 |
Insurance plans in this area (ZIP 94608)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| EMERGENCY MEDICINE | CA | 71010 | X-ray of chest, 1 view, front | 48 | 48 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Internal Medicine, Pediatric Medicine | CA | |
| Neurology, Internal Medicine | CA | |
| - | CA | |
| - | CA | |
| - | CA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.