Mara Spare, MD
Hospitalist · Mountain View
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Offices
- 4
Offices
4 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Looking this up.
Hospitals listed: El Camino Health. That is not proof they admit you there this week.
Plans that list them
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Spare’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence A113613 · Current
Licensed to practise in California · since 2010 · expires 2028-04-30 · University of Nevada School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
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.
- El Camino HealthMountain View, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of El Camino Health, which runs 2 hospitalsPatients rate it 4 of 5 · 80% would definitely recommend itOverall rating: 4 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.291, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.393, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, Oct 2024 – Sep 2025
See every measure and the patient survey for El Camino Health
Behind the star rating — Deaths: 3 better, 5 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 1 better, 9 the same, 1 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.291 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.393 | Better | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.96 (0.12 to 1.79) · 2,340 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.02 (0.76 to 1.28) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 167.38 (125.03 to 209.73) · 96 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 2.6 · 68 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 7.1 · 185 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 11.8 · 200 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 8.9 · 814 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 13 · 842 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 9.6 · 361 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.6 · 4,633 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.16 (0 to 0.34) · 11,474 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.27 (0.1 to 0.45) · 11,626 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.14 (1.39 to 4.9) · 2,814 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 2 (0.61 to 3.39) · 1,327 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.11 (0.8 to 3.43) · 2,641 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.39 (4.18 to 14.6) · 1,287 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 6.57 (3.47 to 9.68) · 1,308 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 2.14 (0.71 to 3.57) · 827 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.6 (0.05 to 1.15) · 9,460 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.5 · 122 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.993 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.706 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.376 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15.5 · 218 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 19.5 · 962 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 3.8 · 200 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -17 · 922 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 18.6 · 860 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 18.7 · 827 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 6.1 (4.5 to 8.2) · 313 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 13.4 (10.6 to 16.5) · 313 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.1 · 144 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.3 · 80 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.7 · 237 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.8 (10 to 16.1) · 1,639 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.8 to 1.1) · 1,619 cases | No different | Jan 2024 – Dec 2024 |
What patients said (1,535 patients answered, 22% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 3 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 79% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 61% |
| Yes, staff "did" give patients this information | 86% |
| Yes, staff "did" give patients information about help after discharge | 86% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 76% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 75% |
| Nurses "always" listened carefully | 76% |
| Nurses "always" treated them with courtesy and respect | 87% |
| "Always" quiet at night | 47% |
| "YES", patients would definitely recommend the hospital | 80% |
| Staff "always" explained possible side effects | 46% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$63,996
Medicare paid this office $63,996 for 229 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 130 | $38,528 | $106 |
| Hospital discharge day management, more than 30 minutes | 101 | $11,532 | $104 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 77 | $11,410 | $146 |
Who their Medicare patients are
229 Original Medicare patients in 2024. Average age 81 · Under 65 5% · 85 and older 41% · Women 56% · Also on Medicaid 24% · Health risk score 2.40. At or below the middle of the specialty; the typical hospitalist clinician is at 2.49.
Conditions among them: High blood pressure 75% · Atrial fibrillation 47% · Heart failure 44% · Chronic kidney disease 44% · Coronary heart disease 41% · Diabetes 40% · Depression 33% · Dementia 29% · Cancer 28% · COPD 28% · Stroke 27%.
The office billed $240,375, Medicare allowed $81,398 and paid $63,996; for 588 services of 10 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
| 2024 | 229 | 588 | 81 | 2.40 | $240,375 | $63,996 |
| 2023 | 286 | 709 | 82 | 1.88 | $283,019 | $77,493 |
| 2022 | 214 | 525 | 80 | 2.23 | $205,674 | $52,721 |
| 2021 | 308 | 772 | 80 | 1.95 | $306,822 | $82,508 |
| 2020 | 226 | 479 | 79 | 2.16 | $171,548 | $53,043 |
| 2019 | 372 | 793 | 80 | 2.30 | $283,795 | $85,156 |
| 2018 | 264 | 531 | 80 | 2.11 | $176,326 | $53,137 |
| 2017 | 362 | 884 | 80 | 2.22 | $255,689 | $76,825 |
| 2016 | 24 | 35 | 73 | 2.06 | $8,468 | $2,388 |
| 2015 | 14 | 17 | 64 | 1.24 | $3,090 | $1,018 |
| 2014 | 16 | 23 | 74 | 1.45 | $3,392 | $1,281 |
| 2013 | 24 | 29 | 72 | 1.61 | $5,443 | $1,455 |
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: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 170 | $46,319 | $107 |
| Hospital discharge day management, more than 30 minutes | 135 | $15,021 | $105 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 73 | $11,120 | $152 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 22 | $2,004 | $67 |
| Hospital discharge day management, 30 minutes or less | 13 | $964 | $74 |
2022: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 117 | $32,097 | $93 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 45 | $8,168 | $182 |
| Hospital discharge day management, more than 30 minutes | 74 | $6,834 | $91 |
| Initial hospital observation care per day, typically 70 minutes | 16 | $2,572 | $161 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 11 | $837 | $60 |
| Hospital observation care on day of discharge | 11 | $662 | $60 |
2021: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 147 | $40,777 | $94 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 95 | $17,465 | $180 |
| Hospital discharge day management, more than 30 minutes | 112 | $11,708 | $99 |
| Initial hospital observation care per day, typically 70 minutes | 23 | $3,772 | $164 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 17 | $1,869 | $64 |
| Hospital observation care on day of discharge | 14 | $807 | $58 |
2020: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 100 | $23,907 | $97 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 59 | $10,836 | $184 |
| Hospital discharge day management, more than 30 minutes | 76 | $7,952 | $103 |
| Initial hospital observation care per day, typically 70 minutes | 16 | $2,767 | $173 |
| Hospital observation care on day of discharge | 19 | $1,312 | $69 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 11 | $1,070 | $67 |
2019: 8 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 153 | $34,853 | $95 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 115 | $20,913 | $180 |
| Hospital discharge day management, more than 30 minutes | 115 | $11,746 | $99 |
| Initial hospital observation care per day, typically 70 minutes | 31 | $5,221 | $168 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 40 | $4,170 | $65 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 14 | $1,739 | $124 |
| Hospital observation care on day of discharge | 21 | $1,424 | $68 |
| Hospital discharge day management, 30 minutes or less | 19 | $1,288 | $68 |
2018: 10 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 86 | $17,712 | $92 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 78 | $14,035 | $180 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 51 | $5,089 | $63 |
| Hospital discharge day management, more than 30 minutes | 51 | $5,036 | $97 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 22 | $2,689 | $122 |
| Initial hospital observation care per day, typically 70 minutes | 12 | $2,008 | $167 |
| Initial hospital observation care per day, typically 50 minutes | 18 | $2,002 | $111 |
| Hospital discharge day management, 30 minutes or less | 26 | $1,536 | $59 |
| Hospital observation care on day of discharge | 19 | $1,203 | $63 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes | 11 | $490 | $33 |
2017: 10 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 152 | $26,044 | $89 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 121 | $12,880 | $63 |
| Hospital discharge day management, more than 30 minutes | 101 | $9,925 | $95 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 48 | $8,441 | $176 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 47 | $5,563 | $118 |
| Hospital discharge day management, 30 minutes or less | 55 | $3,406 | $62 |
| Hospital observation care on day of discharge | 38 | $2,446 | $64 |
| Initial hospital observation care per day, typically 50 minutes | 24 | $2,437 | $102 |
| Critical care, first 30-74 minutes | 11 | $2,094 | $190 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes | 29 | $1,186 | $34 |
2013: 1 service
| Return visit (30+ min) | 17 | $967 | $57 |
Professional record
- NPI
- 1598993891
- Licence
- CA A113613California A113613: Current · expires 2028-04-30
- Trained
- University of Nevada School of Medicine, 2009
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Hospitalist (208M00000X); Internal medicine (207R00000X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2009-06-24
- NPI last updated
- 2024-10-18
- NPI record certified
- 2024-10-18
This is when the NPI record was last certified, not a medical board exam.