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Matthew Walt Gerenz, MD

Psychiatry · Santa Clara

NPI 1992385785

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

Looking this up.

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.

Largest Original Medicare bills
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes14$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.

Largest Part D drug costs
Lybalvi13$30,859$2,374
Quetiapine27$2,775$103
Escitalopram46$2,158$47
Aripiprazole25$1,882$75
Chlorpromazine12$856$71
See all 21 drugs
Every Part D drug this clinician prescribed
Lybalvi13$30,859$2,374
Quetiapine27$2,775$103
Escitalopram46$2,158$47
Aripiprazole25$1,882$75
Chlorpromazine12$856$71
Mirtazapine25$748$30
Divalproex Sodium Er22$605$27
Divalproex11$603$55
Olanzapine13$587$45
Trazodone37$447$12
Venlafaxine Hcl Er18$447$25
Duloxetine15$411$27
Risperidone25$381$15
Oxcarbazepine14$333$24
Eszopiclone12$311$26
Lorazepam26$285$11
Clonazepam30$282$9
Buspirone15$259$17
Sertraline14$184$13
Gabapentin15$121$8
Fluoxetine13$54$4

Year by year

Part D prescribing by year
2024590560% (0)8%$88,227
2023232310% (0)8%$39,807
202228None0% (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

Part D drugs prescribed in 2023
Quetiapine13$2,160$166
Mirtazapine24$496$21
Trazodone13$239$18
Clonazepam28$188$7
Lorazepam15$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.