Doctor profile · Federal record
Dr. Matthew Janssen, M.D..
Hospice and Palliative Medicine (Internal Medicine) Physician (CMS: Hospice/Palliative Care) · Hospice and Palliative Medicine (Emergency Medicine) Physician · Hospitalist Physician · Pomona, CA
- NPI 1497857023
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1798 N Garey Ave
Pomona, CA 917672918
(909) 865-9600 - Mailing address
-
2100 Powell St, Suite 900
Emeryville, CA 946081826
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- September 17, 2024
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RH0002X — NUCC code
- State license (1)
- California #A86129
- Medicaid
- CA #00A861290
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497857023. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
862
Distinct HCPCS
4
Medicare allowed
$101,448
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 231 | 127 | $125 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 230 | 122 | $83 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 209 | 203 | $182 | |
99497 |
Advance care planning, first 30 minutes | 192 | 187 | $80 |
In context: peer comparison
Among 2 peers in Pomona Hospice and Palliative Medicine (Internal Medicine) Physician, average services per provider: 146. This provider delivers 5.9× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Matthew Janssen's medical specialty?
Dr. Matthew Janssen practices Hospice and Palliative Medicine (Internal Medicine) Physician in Pomona, CA.
Where does Dr. Matthew Janssen practice?
Dr. Matthew Janssen practices at 1798 N Garey Ave, Pomona, CA 917672918. Office phone: 9098659600.
What is Dr. Matthew Janssen's NPI?
Dr. Matthew Janssen's National Provider Identifier (NPI) is 1497857023, issued by NPPES.
Does Dr. Matthew Janssen accept Medicare assignment?
Yes. Dr. Matthew Janssen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Janssen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.