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Mark Mamlouk, MD

Diagnostic Radiology · San Francisco

NPI 1720248388

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
3
1 carrier
Offices
3

Offices

3 locations · University of California San Francisco · Permanente Medical Group Inc

Looking this up.

Hospitals listed: Kaiser Foundation Hospital-Santa Clara · UCSF Medical Center. That is not proof they admit you there this week.

Plans that list them

3 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Mamlouk’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.ListedSep 1, 2026

California Medical Board record

Licence A108958 · Current

Licensed to practise in California · since 2009 · expires 2028-12-31 · University of Arizona College of Medicine.

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

Hospitals they work in

2 hospitals

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

  • Kaiser Foundation Hospital-Santa ClaraSanta Clara, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Kaiser Permanente, which runs 41 hospitals in 3 statesPatients rate it 3 of 5 · 75% would definitely recommend it
    Overall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.38, Oct 2024 – Sep 2025
  • UCSF Medical CenterSan Francisco, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of University of California Health, which runs 12 hospitalsHome of UCSF Helen Diller Family Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 81% would definitely recommend it
    Overall rating: 4 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 4.9 (3.79 to 6.02) · 7,590 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 12.8 (11.3 to 14.4) · 2,019 cases, Jan 2024 – Dec 2024Better than the national rate — Death rate among surgical inpatients with serious treatable complications: 139.4 (110.22 to 168.58) · 452 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.622, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.626, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.491, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.8 (0.7 to 1) · 2,336 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Kaiser Foundation Hospital-Santa Clara

Behind the star rating — Deaths: 0 better, 3 the same, 0 worse of 3 measures. Safety: 2 better, 4 the same, 0 worse of 6 measures. Readmissions: 0 better, 1 the same, 1 worse of 2 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Kaiser Foundation Hospital-Santa Clara
Clostridium Difficile (C.Diff)Infections0.38BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.01 (0 to 2.09) · 181 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.02 (0.61 to 1.42)No differentJul 2022 – Jun 2024
Death rate for stroke patientsComplications and deaths10.5 · 312 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.8 · 3,736 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.2 (0 to 0.43) · 910 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.26 (0.05 to 0.48) · 1,036 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.53 (2.03 to 7.03) · 235 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.57 (0 to 3.25) · 83 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.5 (0.82 to 4.18) · 178 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths11.73 (3.81 to 19.64) · 74 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.31 (1.3 to 9.32) · 94 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.75 (0.22 to 3.28) · 37 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.34 (0 to 1.34) · 819 casesNo differentJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.72No differentOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections1.049No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.598No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.926No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits13 · 589 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.7 · 828 casesNoneJul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits107.6 · 27 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits17.9 · 642 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits7.8 · 249 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.6 · 181 casesNoneJul 2023 – Jun 2025

What patients said (572 patients answered, 25% of those asked)

Patient survey stars by topic at Kaiser Foundation Hospital-Santa Clara
Cleanliness4
Nurse communication3
Doctor communication4
Communication about medicines2
Discharge information4
Overall hospital rating3
Quietness2
Recommend hospital4
Share of patients giving the best answer at Kaiser Foundation Hospital-Santa Clara
Room was "always" clean72%
Nurses "always" communicated well75%
Doctors "always" communicated well80%
Staff "always" explained57%
Yes, staff "did" give patients this information88%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand74%
Doctors "always" listened carefully79%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)70%
Staff "always" explained new medications72%
Nurses "always" explained things so they could understand72%
Nurses "always" listened carefully71%
Nurses "always" treated them with courtesy and respect82%
"Always" quiet at night44%
"YES", patients would definitely recommend the hospital75%
Staff "always" explained possible side effects42%
Yes, staff "did" give patients information about possible symptoms89%
See every measure and the patient survey for UCSF Medical Center

Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 3 better, 5 the same, 3 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at UCSF Medical Center
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.9 (3.79 to 6.02) · 7,590 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.8 (11.3 to 14.4) · 2,019 casesWorseJan 2024 – Dec 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths139.4 (110.22 to 168.58) · 452 casesBetterJul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.622BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.626BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.491BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.8 (0.7 to 1) · 2,336 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.24 (0.58 to 1.9) · 4,689 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.05 (0.89 to 1.2)No differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.9 · 89 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.5 · 85 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.1 · 132 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.6 · 454 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 618 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.6 · 380 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.7 · 5,000 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.22 (0.06 to 0.38) · 15,965 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.2 (0.05 to 0.35) · 17,859 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.85 (0 to 1.83) · 4,184 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2 (1.1 to 2.9) · 6,516 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths7.35 (4.49 to 10.21) · 3,989 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5 (3.22 to 6.77) · 4,087 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.95 (0.74 to 3.15) · 2,034 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.95 (0.63 to 1.28) · 15,431 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4 · 399 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.899No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.689No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.224No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16 · 156 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20 · 564 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits60.3 · 160 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-9.7 · 550 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits44.1 · 660 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.8 · 667 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.7 (4.8 to 6.7) · 2,019 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits6 · 421 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.5 · 53 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20 · 107 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.9 (11.3 to 17.1) · 3,247 casesNo differentJan 2022 – Dec 2024

What patients said (3,181 patients answered, 25% of those asked)

Patient survey stars by topic at UCSF Medical Center
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at UCSF Medical Center
Room was "always" clean71%
Nurses "always" communicated well80%
Doctors "always" communicated well80%
Staff "always" explained61%
Yes, staff "did" give patients this information88%
Yes, staff "did" give patients information about help after discharge87%
Doctors "always" explained things so they could understand74%
Doctors "always" listened carefully78%
Doctors "always" treated them with courtesy and respect86%
Patients who gave a rating of "9" or "10" (high)76%
Staff "always" explained new medications75%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully78%
Nurses "always" treated them with courtesy and respect86%
"Always" quiet at night50%
"YES", patients would definitely recommend the hospital81%
Staff "always" explained possible side effects46%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$9,304

Medicare paid this office $9,304 for 115 people.

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

Largest Original Medicare bills
Mri scan of brain before and after contrast18$1,809$95
Mri scan of brain without contrast20$1,091$55
Ct scan head or brain without contrast19$701$33

Who their Medicare patients are

115 Original Medicare patients in 2024. Average age 71 · Under 65 20% · 85 and older 10% · Women 50% · Also on Medicaid 49% · Health risk score 2.12. Above the middle of the specialty; the typical diagnostic radiology clinician is at 1.7.

Conditions among them: High blood pressure 75% · Diabetes 42% · Stroke 36% · Coronary heart disease 31% · Chronic kidney disease 30% · Depression 30% · Heart failure 27% · Atrial fibrillation 25% · Cancer 23% · COPD 21% · Dementia 15%.

The office billed $156,636, Medicare allowed $12,595 and paid $9,304; for 349 services of 43 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.

Year by year

Original Medicare by year
2024115349712.12$156,636$9,304
2023129172711.57$134,425$7,719
2022117227692.03$105,550$7,665
2021123248712.12$147,572$9,066
20204570701.92$26,613$3,658
20196889691.86$60,855$4,472
201892150691.82$100,568$7,309
2017125171692.27$91,483$6,827
201694140712.21$82,436$5,682
2015283430701.67$331,786$19,029
2014181340691.41$145,119$10,631

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: 6 services

Original Medicare services billed in 2023
Ct scan head or brain without contrast42$1,467$34
Ct scan of blood vessels of neck with contrast13$933$72
Mri scan of brain without contrast16$888$55
Mri scan of brain before and after contrast11$881$80
Ct scan of blood vessels of head with contrast11$802$73
X-ray of chest, 1 view12$88$7

2022: 4 services

Original Medicare services billed in 2022
Mri scan of brain before and after contrast13$1,092$84
Mri scan of brain without contrast23$1,071$47
Ct scan head or brain without contrast21$752$33
X-ray of chest, 1 view12$90$7

2021: 3 services

Original Medicare services billed in 2021
Ct scan head or brain without contrast43$1,516$34
Mri scan of brain without contrast19$1,221$64
Ct scan of blood vessels of neck with contrast12$885$74

2019: 1 service

Original Medicare services billed in 2019
Ct scan head or brain without contrast19$713$38

2018: 2 services

Original Medicare services billed in 2018
Mri scan of brain before and after contrast18$1,663$92
Ct scan head or brain without contrast20$741$35

2017: 4 services

Original Medicare services billed in 2017
Mri scan of brain before and after contrast14$1,132$81
Ct scan head or brain without contrast23$788$33
Mri scan of brain without contrast11$593$54
X-ray of chest, 1 view, front18$156$8

2016: 3 services

Original Medicare services billed in 2016
Mri scan of brain before and after contrast15$1,419$95
Ct scan head or brain without contrast22$731$30
X-ray of chest, 1 view, front14$97$6

2015: 7 services

Original Medicare services billed in 2015
Mri scan of brain before and after contrast62$5,671$91
Ct scan head or brain without contrast47$1,545$32
Mri scan of brain without contrast25$1,176$47
Mri scan of upper spinal canal without contrast14$611$44
X-ray of spine, scoliosis study44$480$10
X-ray of upper spine, 2-3 views31$278$9
X-ray of lower and sacral spine, 2-3 views25$208$8

2014: 7 services

Original Medicare services billed in 2014
Ct scan head or brain without contrast31$1,112$34
Mri scan of brain before and after contrast12$1,066$89
X-ray of spine, scoliosis study76$985$13
X-ray of lower and sacral spine, 2-3 views47$470$10
X-ray of middle spine, 2 views33$321$10
X-ray of upper spine, 2-3 views27$280$10
X-ray of upper spine, 4-5 views11$151$14

Medicaid work

$7,644 in 2024

Medicaid paid $7,644 for 45 billed services this clinician did in 2024, up to 14 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2024
Magnetic resonance (eg, proton) imaging, spinal canal and contents, cervical; without contrast material18$4,370
Computed tomographic angiography, head, with contrast material(s), including noncontrast images, if performed, and image postprocessing14$1,656
CT ANGIOGRAPHY NECK13$1,618
Medicaid work by year
202445314$7,644
202313112$82
202020118$423
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
MRI BRAIN BRAIN STEM W/O CONTRAST MATERIAL13$82

2020

Largest Medicaid services in 2020
MRI BRAIN BRAIN STEM W/O CONTRAST MATERIAL20$423

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
74.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1720248388
Licence
CA A108958California A108958: Current · expires 2028-12-31
Trained
University of Arizona College of Medicine, 2008
Group
University of California San Francisco · Permanente Medical Group Inc
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Diagnostic radiology (2085R0202X)
Mailing address
101 the City Dr S, Orange, CA, 92868
NPI first listed
2008-06-16
NPI last updated
2022-02-11

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

This office lists an electronic records connection.