Matthew Walt Gerenz, MD
Psychiatry · Santa Clara
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location · Mellow Medical Inc A Professional Corporation · 30 clinicians in this group
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Gerenz’s office at (888) 684-2779 to ask if they take your plan before you enroll.
California Medical Board record
Licence A183126 · Current
Licensed to practise in California · since 2022 · expires 2027-01-31 · University of North Dakota School of Medicine and Health Sciences.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$3,043
Medicare paid this office $3,043 for 17 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 14 | $2,471 | $65 |
Who their Medicare patients are
17 Original Medicare patients in 2024. Average age 50 · Health risk score 1.12. At or below the middle of the specialty; the typical psychiatry clinician is at 1.35.
Conditions among them: Depression 75% · High blood pressure 71%.
The office billed $6,900, Medicare allowed $3,819 and paid $3,043; for 42 services of 2 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Drugs they prescribed that Part D paid
$88,227
Pharmacies billed $88,227 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 0% of their Part D prescriptions (0 of 590) in 2024. At or below the middle of the specialty; the typical psychiatry clinician is at 0%.
540 generic and 50 brand-name prescriptions · $88,227 in drug cost · 54 antipsychotic prescriptions to people over 65.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
| Lybalvi | 13 | $30,859 | $2,374 |
| Quetiapine | 27 | $2,775 | $103 |
| Escitalopram | 46 | $2,158 | $47 |
| Aripiprazole | 25 | $1,882 | $75 |
| Chlorpromazine | 12 | $856 | $71 |
See all 21 drugs
| Lybalvi | 13 | $30,859 | $2,374 |
| Quetiapine | 27 | $2,775 | $103 |
| Escitalopram | 46 | $2,158 | $47 |
| Aripiprazole | 25 | $1,882 | $75 |
| Chlorpromazine | 12 | $856 | $71 |
| Mirtazapine | 25 | $748 | $30 |
| Divalproex Sodium Er | 22 | $605 | $27 |
| Divalproex | 11 | $603 | $55 |
| Olanzapine | 13 | $587 | $45 |
| Trazodone | 37 | $447 | $12 |
| Venlafaxine Hcl Er | 18 | $447 | $25 |
| Duloxetine | 15 | $411 | $27 |
| Risperidone | 25 | $381 | $15 |
| Oxcarbazepine | 14 | $333 | $24 |
| Eszopiclone | 12 | $311 | $26 |
| Lorazepam | 26 | $285 | $11 |
| Clonazepam | 30 | $282 | $9 |
| Buspirone | 15 | $259 | $17 |
| Sertraline | 14 | $184 | $13 |
| Gabapentin | 15 | $121 | $8 |
| Fluoxetine | 13 | $54 | $4 |
Year by year
| 2024 | 590 | 56 | 0% (0) | 8% | $88,227 |
| 2023 | 232 | 31 | 0% (0) | 8% | $39,807 |
| 2022 | 28 | None | 0% (0) | 0% | $304 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 5 drugs
| Quetiapine | 13 | $2,160 | $166 |
| Mirtazapine | 24 | $496 | $21 |
| Trazodone | 13 | $239 | $18 |
| Clonazepam | 28 | $188 | $7 |
| Lorazepam | 15 | $73 | $5 |
Professional record
- NPI
- 1992385785
- Licence
- CA A183126California A183126: Current · expires 2027-01-31
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Psychiatry (2084P0800X)
- Mailing address
- 3800 W Chapman Ave, Orange, CA, 92868
- NPI first listed
- 2021-04-14
- NPI last updated
- 2024-04-25
- NPI record certified
- 2024-04-25
This is when the NPI record was last certified, not a medical board exam.