David Philip Bissig, MD

Offices

2 locations · Regents of the University of California · Regents of the Univ of CA

Looking this up.

Hospitals listed: University of California Davis Medical Center. That is not proof they admit you there this week.

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. Bissig’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A140344 · Current

Licensed to practise in California · since 2016 · expires 2027-12-31 · Wayne State University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

School, training and certification

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

American Board of Psychiatry and Neurology - Neurology

Hospitals they work in

1 hospital

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

University of California Davis Medical CenterSacramento, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of University of California Health, which runs 12 hospitalsHome of UC Davis Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 3 of 5 · 74% would definitely recommend it
Overall rating: 4 of 5 starsWorse than the national rate — Abdominopelvic accidental puncture or laceration rate: 1.94 (1.18 to 2.71) · 3,010 cases, Jul 2022 – Jun 2024Worse than the national rate — MRSA Bacteremia: 1.564, Oct 2024 – Sep 2025Worse than the national rate — Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy: 6.7 (5.6 to 8) · 1,134 cases, Jan 2024 – Dec 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 12.6 (10.9 to 14.5) · 1,134 cases, Jan 2024 – Dec 2024Better than the national rate — Death rate among surgical inpatients with serious treatable complications: 127.46 (95.81 to 159.1) · 281 cases, Jul 2022 – Jun 2024Better than the national rate — Pressure ulcer rate: 0.18 (0 to 0.57) · 12,625 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.677, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.713, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.8 (0.7 to 1) · 2,436 cases, Jan 2024 – Dec 2024

See every measure and the patient survey for University of California Davis Medical Center

Behind the star rating — Deaths: 4 better, 4 the same, 0 worse of 8 measures. Safety: 0 better, 7 the same, 1 worse of 8 measures. Readmissions: 0 better, 9 the same, 2 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

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Every scored measure at University of California Davis Medical Center

Abdominopelvic accidental puncture or laceration rateComplications and deaths	1.94 (1.18 to 2.71) · 3,010 cases	Worse	Jul 2022 – Jun 2024
MRSA BacteremiaInfections	1.564	Worse	Oct 2024 – Sep 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits	6.7 (5.6 to 8) · 1,134 cases	Worse	Jan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits	12.6 (10.9 to 14.5) · 1,134 cases	Worse	Jan 2024 – Dec 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths	127.46 (95.81 to 159.1) · 281 cases	Better	Jul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths	0.18 (0 to 0.57) · 12,625 cases	Better	Jul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections	0.677	Better	Oct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections	0.713	Better	Oct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits	0.8 (0.7 to 1) · 2,436 cases	Better	Jan 2024 – Dec 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths	0.98 (0.78 to 1.19)	No different	Jul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths	2.2 · 82 cases	None	Jul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths	7.2 · 165 cases	None	Jul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths	11.2 · 115 cases	None	Jul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths	9.7 · 662 cases	None	Jul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths	10.1 · 463 cases	None	Jul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths	10.1 · 406 cases	None	Jul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths	2.9 · 4,328 cases	None	Jul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths	0.22 (0.05 to 0.39) · 13,828 cases	No different	Jul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths	0.3 (0.13 to 0.46) · 14,152 cases	No different	Jul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths	4.29 (2.92 to 5.66) · 4,920 cases	No different	Jul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths	1.78 (0.46 to 3.09) · 2,250 cases	No different	Jul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths	2.07 (1.06 to 3.09) · 4,696 cases	No different	Jul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths	9.46 (5.18 to 13.75) · 2,102 cases	No different	Jul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths	6.35 (3.74 to 8.96) · 2,191 cases	No different	Jul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths	2.48 (1.19 to 3.77) · 1,169 cases	No different	Jul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths	4.3 · 127 cases	None	Apr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections	0.826	No different	Oct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections	0.899	No different	Oct 2024 – Sep 2025
SSI - Colon SurgeryInfections	0.669	No different	Oct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits	14.2 · 131 cases	None	Jul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits	21.2 · 751 cases	None	Jul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits	-25.8 · 127 cases	None	Jul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits	24.1 · 758 cases	None	Jul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits	23.6 · 477 cases	None	Jul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits	17.6 · 469 cases	None	Jul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits	5.7 · 140 cases	None	Jul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits	10.9 · 65 cases	None	Jul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits	18.3 · 203 cases	None	Jul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits	11.8 (9.4 to 14.9) · 2,643 cases	No different	Jan 2022 – Dec 2024

What patients said (2,768 patients answered, 18% of those asked)

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Patient survey stars by topic at University of California Davis Medical Center

Cleanliness	2
Nurse communication	3
Doctor communication	3
Communication about medicines	3
Discharge information	4
Overall hospital rating	3
Quietness	1
Recommend hospital	4

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Share of patients giving the best answer at University of California Davis Medical Center

Room was "always" clean	61%
Nurses "always" communicated well	76%
Doctors "always" communicated well	78%
Staff "always" explained	60%
Yes, staff "did" give patients this information	89%
Yes, staff "did" give patients information about help after discharge	89%
Doctors "always" explained things so they could understand	72%
Doctors "always" listened carefully	76%
Doctors "always" treated them with courtesy and respect	85%
Patients who gave a rating of "9" or "10" (high)	68%
Staff "always" explained new medications	73%
Nurses "always" explained things so they could understand	71%
Nurses "always" listened carefully	74%
Nurses "always" treated them with courtesy and respect	84%
"Always" quiet at night	37%
"YES", patients would definitely recommend the hospital	74%
Staff "always" explained possible side effects	47%
Yes, staff "did" give patients information about possible symptoms	89%

Original Medicare doctor bills

$44,751

Medicare paid this office $44,751 for 300 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

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Largest Original Medicare bills

Long return visit (40+ min)	131	$19,290	$130
Return visit (30+ min)	95	$8,689	$85
New patient visit (60+ min)	32	$5,101	$159
New patient visit (45+ min)	18	$1,972	$110
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	44	$1,564	$26

See all 10 services

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Every Original Medicare service billed

Long return visit (40+ min)	131	$19,290	$130
Return visit (30+ min)	95	$8,689	$85
New patient visit (60+ min)	32	$5,101	$159
New patient visit (45+ min)	18	$1,972	$110
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	44	$1,564	$26
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	90	$1,208	$13
Short return visit (20+ min)	19	$1,187	$59
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes	11	$1,146	$64
Influenza vaccine split virus, preservative free	13	$1,054	$81
Administration of influenza virus vaccine	14	$478	$34

Who their Medicare patients are

300 Original Medicare patients in 2024. Average age 76 · Under 65 8% · 85 and older 15% · Women 53% · Also on Medicaid 20% · Health risk score 1.57. At or below the middle of the specialty; the typical neurology clinician is at 1.61.

Conditions among them: High blood pressure 66% · Dementia 61% · Depression 40% · Diabetes 26% · Coronary heart disease 26% · Chronic kidney disease 23% · Atrial fibrillation 20% · Stroke 19% · Heart failure 15% · COPD 14% · Cancer 13%.

The office billed $236,773, Medicare allowed $63,191 and paid $44,751; for 569 services of 29 kinds; $1,076 of it was for drugs given in the office and $43,675 for care.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

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Original Medicare by year

2024	300	569	76	1.57	$236,773	$44,751
2023	373	553	76	1.62	$281,551	$51,441
2022	638	1,068	76	1.46	$566,102	$117,912
2021	509	883	76	1.55	$433,336	$99,459
2020	145	179	74	1.85	$84,898	$16,398
2019	50	90	74	1.34	$23,233	$6,953
2018	20	35	74	0.81	$5,784	$3,289

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 7 services

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Original Medicare services billed in 2023

Long return visit (40+ min)	148	$22,445	$132
Return visit (30+ min)	133	$11,114	$78
New patient visit (60+ min)	32	$4,899	$153
New patient visit (45+ min)	28	$3,081	$110
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	39	$1,643	$27
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes	13	$1,383	$66
Short return visit (20+ min)	16	$1,017	$64

2022: 14 services

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Original Medicare services billed in 2022

Long return visit (40+ min)	264	$42,368	$144
New patient visit (60+ min)	194	$33,159	$171
Return visit (30+ min)	179	$19,891	$99
New patient visit (45+ min)	28	$3,390	$121
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	94	$3,047	$27
Evaluation of neuropsychological test, first hour	22	$2,239	$102
Exam of neurobehavioral status, first hour	31	$1,748	$56
Extended patient service without direct patient contact, first hour	16	$1,536	$90
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes	16	$1,168	$58
Short return visit (20+ min)	17	$1,026	$57
Influenza vaccine split virus, preservative free	15	$1,008	$67
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes	12	$982	$82
Administration of influenza virus vaccine	17	$539	$32
Administration of psychological or neuropsychological test, first 30 minutes	12	$317	$26

2021: 13 services

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Original Medicare services billed in 2021

New patient visit (60+ min)	220	$39,055	$178
Long return visit (40+ min)	163	$28,875	$145
Long return visit (40+ min)	44	$5,498	$115
Return visit (30+ min)	32	$2,941	$92
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	65	$2,549	$27
New patient visit (60+ min)	14	$1,915	$137
New patient visit (45+ min)	17	$1,787	$105
Evaluation of neuropsychological test, first hour	14	$1,572	$112
Influenza vaccine split virus, preservative free	21	$1,370	$65
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes	12	$1,358	$113
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes	15	$1,254	$84
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	37	$1,066	$26
Administration of influenza virus vaccine	21	$384	$18

2020: 6 services

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Original Medicare services billed in 2020

Long return visit (40+ min)	46	$4,002	$87
New patient visit (60+ min)	25	$3,126	$125
Long return visit (40+ min)	20	$1,863	$93
New patient visit (45+ min)	13	$1,394	$107
Extended office or other outpatient service, first hour	15	$1,262	$84
Return visit (30+ min)	11	$461	$42

2019: 2 services

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Original Medicare services billed in 2019

Long return visit (40+ min)	12	$940	$78
Return visit (30+ min)	11	$635	$58

2018: 1 service

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Original Medicare services billed in 2018

Extended office or other outpatient service, first hour	12	$941	$78

Drugs they prescribed that Part D paid

$64,329

Pharmacies billed $64,329 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 1,015) in 2024. At or below the middle of the specialty; the typical neurology clinician is at 0%.

985 generic and 30 brand-name prescriptions · $64,329 in drug cost · 46 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.

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Largest Part D drug costs

Rivastigmine	23	$5,896	$256
Memantine	107	$5,768	$54
Donepezil	361	$5,436	$15
Doxepin	27	$4,087	$151
Galantamine Hbr	47	$3,623	$77

See all 20 drugs

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Every Part D drug this clinician prescribed

Rivastigmine	23	$5,896	$256
Memantine	107	$5,768	$54
Donepezil	361	$5,436	$15
Doxepin	27	$4,087	$151
Galantamine Hbr	47	$3,623	$77
Carbidopa-Levodopa Er	15	$2,936	$196
Carbidopa-Levodopa	38	$1,324	$35
Trazodone	57	$875	$15
Rivastigmine	11	$843	$77
Quetiapine	23	$714	$31
Mirtazapine	31	$681	$22
Escitalopram	30	$597	$20
Sertraline	52	$474	$9
Lamotrigine	18	$469	$26
Duloxetine	11	$320	$29
Gabapentin	16	$227	$14
Dextroamphetamine-Amphetamine	11	$196	$18
Risperidone	17	$171	$10
Citalopram Hbr	11	$106	$10
Fluoxetine	11	$96	$9

Year by year

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Part D prescribing by year

2024	1,015	230	0% (0)	3%	$64,329
2023	1,540	299	0% (0)	3%	$105,220
2022	1,817	347	0% (0)	3%	$216,044
2021	882	208	0% (0)	2%	$32,537
2020	280	71	0% (0)	None	$10,800
2019	306	58	0% (0)	8%	$19,453
2018	392	69	0% (0)	None	$136,499
2017	388	54	0% (0)	16%	$76,134
2016	177	26	None	12%	$12,865
2015	21	None	None	None	$2,098
2014	16	None	0% (0)	None	$532

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 19 drugs

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Part D drugs prescribed in 2023

Rivastigmine	55	$16,165	$294
Donepezil	529	$11,265	$21
Memantine	216	$10,810	$50
Doxepin	27	$7,426	$275
Galantamine Hbr	65	$5,711	$88
Carbidopa-Levodopa	85	$5,172	$61
Memantine Hcl Er	13	$4,771	$367
Carbidopa-Levodopa Er	12	$4,075	$340
Rivastigmine	24	$2,162	$90
Mirtazapine	48	$1,645	$34
Venlafaxine Hcl Er	12	$1,554	$129
Trazodone	89	$1,357	$15
Gabapentin	34	$1,234	$36
Sertraline	82	$914	$11
Quetiapine	34	$896	$26
Levetiracetam	14	$693	$49
Bupropion Xl	13	$210	$16
Risperidone	21	$200	$10
Escitalopram	15	$191	$13

2022: 19 drugs

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Part D drugs prescribed in 2022

Ingrezza	12	$96,457	$8,038
Rivastigmine	73	$20,756	$284
Memantine	247	$13,058	$53
Galantamine Hbr	97	$11,444	$118
Donepezil	648	$11,148	$17
Carbidopa-Levodopa	112	$6,138	$55
Myrbetriq	11	$5,259	$478
Rivastigmine	31	$2,518	$81
Trazodone	132	$1,846	$14
Gabapentin	49	$1,639	$33
Levetiracetam	18	$1,418	$79
Quetiapine	62	$1,415	$23
Mirtazapine	32	$1,133	$35
Bupropion Hcl Sr	13	$819	$63
Sertraline	91	$792	$9
Duloxetine	20	$583	$29
Quetiapine Fumarate Er	11	$271	$25
Olanzapine	12	$198	$16
Bupropion Xl	18	$160	$9

2021: 16 drugs

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Part D drugs prescribed in 2021

Myrbetriq	15	$6,197	$413
Memantine	84	$4,866	$58
Donepezil	345	$4,265	$12
Galantamine Hbr	49	$3,511	$72
Carbidopa-Levodopa	37	$2,230	$60
Rivastigmine	22	$1,605	$73
Venlafaxine Hcl Er	13	$1,469	$113
Trazodone	66	$639	$10
Mirtazapine	12	$558	$47
Levetiracetam	11	$505	$46
Sertraline	81	$413	$5
Bupropion Xl	13	$402	$31
Duloxetine	13	$395	$30
Bupropion Hcl Sr	17	$308	$18
Quetiapine	18	$194	$11
Gabapentin	12	$52	$4

2020: 6 drugs

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Part D drugs prescribed in 2020

Memantine	51	$2,013	$39
Carbidopa-Levodopa	12	$991	$83
Donepezil	81	$902	$11
Sertraline	56	$465	$8
Gabapentin	11	$155	$14
Mirtazapine	11	$105	$10

2019: 6 drugs

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Part D drugs prescribed in 2019

Memantine	65	$2,130	$33
Ondansetron	11	$1,183	$108
Donepezil	63	$644	$10
Carbidopa-Levodopa	19	$628	$33
Sertraline	39	$259	$7
Gabapentin	12	$113	$9

2018: 11 drugs

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Part D drugs prescribed in 2018

Copaxone	12	$74,542	$6,212
Carbamazepine Er	15	$2,815	$188
Levetiracetam	27	$879	$33
Memantine	13	$612	$47
Gabapentin	35	$496	$14
Atorvastatin	17	$351	$21
Baclofen	20	$296	$15
Donepezil	41	$291	$7
Carbidopa-Levodopa	21	$252	$12
Lidocaine-Prilocaine	13	$246	$19
Quetiapine	15	$76	$5

2017: 15 drugs

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Part D drugs prescribed in 2017

Carbamazepine Er	21	$3,623	$173
Sumatriptan	12	$909	$76
Levocarnitine	12	$434	$36
Levetiracetam	13	$353	$27
Baclofen	25	$325	$13
Cyclobenzaprine	13	$254	$20
Topiramate	15	$251	$17
Carbidopa-Levodopa	15	$232	$15
Atorvastatin	11	$213	$19
Donepezil	32	$159	$5
Propranolol	12	$145	$12
Gabapentin	12	$119	$10
Divalproex	24	$116	$5
Lamotrigine	12	$77	$6
Lorazepam	13	$25	$2

2016: 4 drugs

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Part D drugs prescribed in 2016

Carbamazepine Er	13	$1,449	$111
Atorvastatin	20	$429	$21
Donepezil	15	$78	$5
Verapamil Er	13	$63	$5

Professional record

NPI: 1144648338
Licence: CA A140344, OR MD186924California A140344: Current · expires 2027-12-31
Trained: Wayne State University School of Medicine, 2014 · 12 years ago
Group: Regents of the University of California · Regents of the Univ of CA
Video visits: Lists video visits
Gender: Male

More record details

Sole proprietor: No
Taxonomy: Neurology (2084N0400X)
Mailing address: 3160 Folsom Blvd, Sacramento, CA, 95816
NPI first listed: 2014-04-03
NPI last updated: 2021-10-26
NPI record certified: 2021-10-26

This is when the NPI record was last certified, not a medical board exam.