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Maryam Shahrzad, MD

Diagnostic Radiology · Sacramento

NPI 1639588775

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
Since medical school
20 years
Graduated 2006

Offices

1 location · Regents of the Univ of CA · 1,571 clinicians in this group

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. Shahrzad’s office at (916) 703-3011 to ask if they take your plan before you enroll.

California Medical Board record

Licence A168559 · Current

Licensed to practise in California · since 2020 · expires 2028-04-30 · Tehran University of Medical Sciences and Health Services.

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 Radiology - Diagnostic Radiology
  • American Board of Radiology - Neuroradiology

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.

Every scored measure at University of California Davis Medical Center
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.94 (1.18 to 2.71) · 3,010 casesWorseJul 2022 – Jun 2024
MRSA BacteremiaInfections1.564WorseOct 2024 – Sep 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits6.7 (5.6 to 8) · 1,134 casesWorseJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.6 (10.9 to 14.5) · 1,134 casesWorseJan 2024 – Dec 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths127.46 (95.81 to 159.1) · 281 casesBetterJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.18 (0 to 0.57) · 12,625 casesBetterJul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.677BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.713BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.8 (0.7 to 1) · 2,436 casesBetterJan 2024 – Dec 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.98 (0.78 to 1.19)No differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.2 · 82 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.2 · 165 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths11.2 · 115 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths9.7 · 662 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.1 · 463 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.1 · 406 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.9 · 4,328 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.22 (0.05 to 0.39) · 13,828 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.3 (0.13 to 0.46) · 14,152 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.29 (2.92 to 5.66) · 4,920 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.78 (0.46 to 3.09) · 2,250 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.07 (1.06 to 3.09) · 4,696 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths9.46 (5.18 to 13.75) · 2,102 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths6.35 (3.74 to 8.96) · 2,191 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths2.48 (1.19 to 3.77) · 1,169 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4.3 · 127 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.826No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.899No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.669No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.2 · 131 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits21.2 · 751 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits-25.8 · 127 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits24.1 · 758 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits23.6 · 477 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits17.6 · 469 casesNoneJul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits5.7 · 140 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.9 · 65 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits18.3 · 203 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits11.8 (9.4 to 14.9) · 2,643 casesNo differentJan 2022 – Dec 2024

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

Patient survey stars by topic at University of California Davis Medical Center
Cleanliness2
Nurse communication3
Doctor communication3
Communication about medicines3
Discharge information4
Overall hospital rating3
Quietness1
Recommend hospital4
Share of patients giving the best answer at University of California Davis Medical Center
Room was "always" clean61%
Nurses "always" communicated well76%
Doctors "always" communicated well78%
Staff "always" explained60%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand72%
Doctors "always" listened carefully76%
Doctors "always" treated them with courtesy and respect85%
Patients who gave a rating of "9" or "10" (high)68%
Staff "always" explained new medications73%
Nurses "always" explained things so they could understand71%
Nurses "always" listened carefully74%
Nurses "always" treated them with courtesy and respect84%
"Always" quiet at night37%
"YES", patients would definitely recommend the hospital74%
Staff "always" explained possible side effects47%
Yes, staff "did" give patients information about possible symptoms89%

Original Medicare doctor bills

$56,080

Medicare paid this office $56,080 for 867 people.

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

Largest Original Medicare bills
Ct scan head or brain without contrast277$9,411$31
Mri scan of brain before and after contrast78$6,966$86
Mri scan of brain without contrast114$6,276$55
Ct scan of blood vessels of head with contrast40$2,695$66
Mri scan of brain before and after contrast30$2,625$87
See all 19 services
Every Original Medicare service billed
Ct scan head or brain without contrast277$9,411$31
Mri scan of brain before and after contrast78$6,966$86
Mri scan of brain without contrast114$6,276$55
Ct scan of blood vessels of head with contrast40$2,695$66
Mri scan of brain before and after contrast30$2,625$87
Mri scan of brain without contrast45$2,488$55
Ct scan of blood vessels of neck with contrast39$2,429$62
Ct scan of upper spine without contrast65$2,368$36
Mri scan of upper spinal canal without contrast35$1,901$54
Mri scan of lower spinal canal without contrast33$1,821$55
Mri scan of lower spinal canal without contrast28$1,590$57
Ct scan head or brain without contrast42$1,407$32
Mri scan of upper spinal canal without contrast25$1,354$54
Mri scan of blood vessels of head without contrast28$1,237$44
Ct scan of soft tissue of neck with contrast20$1,022$51
Ct scan of soft tissue of neck with contrast18$958$50
Mri scan of blood vessels of neck without contrast16$690$43
Ct scan of face with contrast13$547$42
Ct scan of face without contrast16$506$32

Who their Medicare patients are

867 Original Medicare patients in 2024. Average age 73 · Under 65 12% · 85 and older 13% · Women 58% · Also on Medicaid 35% · Health risk score 1.82. Above the middle of the specialty; the typical diagnostic radiology clinician is at 1.7.

Conditions among them: High blood pressure 75% · Depression 34% · Diabetes 33% · Stroke 33% · Coronary heart disease 31% · Chronic kidney disease 29% · Heart failure 24% · Atrial fibrillation 22% · Cancer 18% · COPD 18% · Dementia 18%.

The office billed $438,626, Medicare allowed $71,790 and paid $56,080; for 1,146 services of 46 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
20248671,146731.82$438,626$56,080
20239551,369731.80$522,992$66,118
2022483685721.79$274,102$35,222
20212743761.74$15,706$1,619

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: 22 services

Original Medicare services billed in 2023
Ct scan head or brain without contrast362$12,908$33
Mri scan of brain before and after contrast106$9,090$83
Mri scan of brain without contrast101$5,519$55
Ct scan of blood vessels of head with contrast61$4,081$66
Ct scan of upper spine without contrast101$3,818$38
Ct scan of blood vessels of neck with contrast58$3,672$63
Mri scan of brain before and after contrast32$3,024$89
Mri scan of blood vessels of head without contrast41$1,971$48
Mri scan of lower spinal canal without contrast33$1,753$53
Mri scan of brain without contrast29$1,660$57
Mri scan of upper spinal canal without contrast29$1,388$48
Mri scan of lower spinal canal before and after contrast14$1,242$89
Ct scan of soft tissue of neck with contrast21$1,212$55
Mri scan of lower spinal canal without contrast21$1,182$54
Ct scan of face without contrast36$1,158$32
Ct scan head or brain without contrast35$1,053$30
Mri scan of blood vessels of neck without contrast24$1,052$44
Mri scan of bone of eye socket, face, and/or neck before and after contrast12$1,016$85
Mri scan of middle spinal canal before and after contrast11$835$76
Mri scan of upper spinal canal without contrast16$828$52
Mri scan of middle spinal canal without contrast12$754$58
Ct scan of lower spine without contrast11$382$35

2022: 13 services

Original Medicare services billed in 2022
Ct scan head or brain without contrast180$6,284$33
Mri scan of brain before and after contrast55$5,129$90
Mri scan of brain without contrast50$2,908$58
Ct scan of blood vessels of neck with contrast33$2,210$67
Ct scan of upper spine without contrast56$2,151$38
Ct scan of blood vessels of head with contrast31$2,146$69
Mri scan of lower spinal canal without contrast34$1,936$57
Mri scan of blood vessels of head without contrast25$1,189$48
Mri scan of upper spinal canal without contrast20$1,115$56
Mri scan of brain before and after contrast11$994$90
Ct scan of soft tissue of neck with contrast15$816$54
Mri scan of blood vessels of neck without contrast17$768$45
Ct scan head or brain without contrast16$531$33

2021: 2 services

Original Medicare services billed in 2021
Ct scan head or brain without contrast26$931$36
Ct scan of upper spine without contrast11$442$40

Medicaid work

$7,998 in 2024

Medicaid paid $7,998 for 240 billed services this clinician did in 2024, up to 37 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
Computed tomography, head or brain; without contrast material240$7,998
Medicaid work by year
2024240137$7,998
2023477342$17,918
2022236537$7,931
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Computed tomography, head or brain; without contrast material413$14,006
MRI BRAIN BRAIN STEM W/O CONTRAST MATERIAL51$3,344
CT CERVICAL SPINE W/O CONTRAST MATERIAL13$568

2022

Largest Medicaid services in 2022
Computed tomography, head or brain; without contrast material164$4,272
MRI BRAIN BRAIN STEM W/O CONTRAST MATERIAL28$1,908
MRI BRAIN BRAIN STEM W/O W/CONTRAST MATERIAL12$1,285
CT CERVICAL SPINE W/O CONTRAST MATERIAL17$466
Clinical decision support mechanism medicalis, as defined by the medicare appropriate use criteria program15$0

Professional record

NPI
1639588775
Licence
CA A168559California A168559: Current · expires 2028-04-30
Gender
Female
More record details
Sole proprietor
Yes
Taxonomy
Diagnostic radiology (2085R0202X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2014-08-02
NPI last updated
2021-06-23
NPI record certified
2021-06-23

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

Extra NPI addresses: 234 E 149th St, Bronx, NY, 10451