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Mariam H Beshai, MD

Hospitalist · Castro Valley

NPI 1447839956

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
4

Offices

4 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Hospitals listed: Eden 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. Beshai’s office to ask if they take your plan before you enroll.

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.

  • Eden Medical CenterCastro Valley, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 3 of 5 · 75% would definitely recommend it
    Overall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.122, Oct 2024 – Sep 2025
See every measure and the patient survey for Eden Medical Center

Behind the star rating — Deaths: 0 better, 7 the same, 0 worse of 7 measures. Safety: 2 better, 5 the same, 0 worse of 7 measures. Readmissions: 0 better, 7 the same, 0 worse of 7 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Eden Medical Center
Clostridium Difficile (C.Diff)Infections0.122BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.88 (0 to 1.89) · 819 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.81 (0.46 to 1.16)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths137.41 (92.94 to 181.88) · 70 casesNo differentJul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths8.4 · 78 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths11.7 · 38 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths11.1 · 207 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths17.6 · 359 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.5 · 355 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.4 · 1,714 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.17 (0 to 0.39) · 4,697 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.3 (0.1 to 0.5) · 4,676 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths2.69 (0.53 to 4.85) · 860 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.56 (0 to 3.24) · 251 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.75 (1.17 to 4.32) · 818 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths7.76 (0 to 15.78) · 261 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths6.09 (2.08 to 10.1) · 242 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.64 (0.16 to 3.12) · 233 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.16 (0 to 0.85) · 4,132 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.9 · 60 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.431No differentOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.292No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.307No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.61No differentOct 2024 – Sep 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.1 · 258 casesNoneJul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits22.6 · 225 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits2.4 · 367 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.9 · 390 casesNoneJul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits5.7 · 58 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20 · 88 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.9 (9.6 to 17.4) · 68 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.8 (0.6 to 1.1) · 205 casesNo differentJan 2024 – Dec 2024

What patients said (431 patients answered, 17% of those asked)

Patient survey stars by topic at Eden Medical Center
Cleanliness3
Nurse communication2
Doctor communication2
Communication about medicines2
Discharge information3
Overall hospital rating3
Quietness3
Recommend hospital4
Share of patients giving the best answer at Eden Medical Center
Room was "always" clean71%
Nurses "always" communicated well75%
Doctors "always" communicated well75%
Staff "always" explained57%
Yes, staff "did" give patients this information87%
Yes, staff "did" give patients information about help after discharge86%
Doctors "always" explained things so they could understand70%
Doctors "always" listened carefully73%
Doctors "always" treated them with courtesy and respect82%
Patients who gave a rating of "9" or "10" (high)70%
Staff "always" explained new medications70%
Nurses "always" explained things so they could understand69%
Nurses "always" listened carefully71%
Nurses "always" treated them with courtesy and respect83%
"Always" quiet at night58%
"YES", patients would definitely recommend the hospital75%
Staff "always" explained possible side effects43%
Yes, staff "did" give patients information about possible symptoms87%

Original Medicare doctor bills

$26,681

Medicare paid this office $26,681 for 132 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 50 minutes75$14,722$102
Initial hospital care with moderate level of medical decision making at least 75 minutes39$5,915$152
Hospital discharge day management, more than 30 minutes47$4,828$103

Who their Medicare patients are

132 Original Medicare patients in 2024. Average age 78 · 85 and older 28% · Women 55% · Also on Medicaid 52% · Health risk score 2.09. At or below the middle of the specialty; the typical hospitalist clinician is at 2.49.

Conditions among them: High blood pressure 75% · Chronic kidney disease 50% · Diabetes 47% · Coronary heart disease 43% · Heart failure 42% · Dementia 37% · Atrial fibrillation 36% · Stroke 33% · Depression 31% · COPD 27% · Cancer 18%.

The office billed $103,290, Medicare allowed $33,878 and paid $26,681; for 245 services of 6 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

$29,825

Pharmacies billed $29,825 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

131 generic and 43 brand-name prescriptions · $29,825 in drug cost.

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
Trulicity13$12,255$943
Atorvastatin16$23$1

Year by year

Part D prescribing by year
202417441None25%$29,825
202351150% (0)None$4,864

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

Professional record

NPI
1447839956
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Hospitalist (208M00000X); Internal medicine (207R00000X); Student in a training program (390200000X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2021-04-03
NPI last updated
2024-10-03
NPI record certified
2024-10-03

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

Extra NPI addresses: 1411 E 31st St, Oakland, CA, 94602