Quick answers
- Does Adventist Health Clearlake have an emergency room?
- Yes. Medicare (CMS) data lists emergency services at Adventist Health Clearlake. In a medical emergency, call 911.
- Where is Adventist Health Clearlake?
- 15630 18th Ave - Hwy 53, Clearlake, CA 95422, in Lake County, California.
- What is the phone number of Adventist Health Clearlake?
- (707) 994-6486, as listed by Medicare (CMS).
- What is the Medicare star rating of Adventist Health Clearlake?
- 2 out of 5 stars in the CMS overall hospital quality rating (CMS data updated 2026-07-22).
Specialties and care areas[9][11][12]
Conditions treated[9]
- Heart attack signs
- Stroke signs
- Head injuries
- Severe bleeding or trauma
- Broken bones
- Burns
- Difficulty breathing
- Loss of consciousness
Treatments[9][12]
- Helicopter transport
- Epidural anesthesia for labor
Procedures[9]
- BrainScope head injury evaluation
Programs and centers[12]
- Bright Start program
- Childbirth education classes
Emergency care (hospital website)[5][9]
| Emergency room | Yes |
|---|---|
| Open 24/7 | Yes |
Visiting and practical information
Recognition[7][10]
- Joint Commission accreditation
- Geriatric Emergency Department Accreditation (ACEP)
- Accreditation from The Joint Commission
- Geriatric Emergency Department Accreditation from the American College of Emergency Physicians
Doctors and clinicians (457)
457 doctors and other clinicians list Adventist Health Clearlake as a hospital where they work, in Medicare's official clinician data (updated 2026-10-02). It is not a complete staff list.
Main specialties
- Nurse Practitioner72
- Physician Assistant57
- Internal Medicine36
- Family Practice29
- Emergency Medicine22
- Hospitalist20
- Orthopedic Surgery18
- Diagnostic Radiology16
- Cardiovascular Disease (Cardiology)13
- Endocrinology11
- Nephrology10
- General Surgery10
Doctors with a page on this site (457)
- Aaron Kime, MDThoracic Surgery
- Ace A. Barash, MDInternal Medicine
- Adetayo Ademuyiwa, MDPulmonary Disease
- Adour Adrouny, MDInternal Medicine
- Aishwarya Sharma, DOFamily Practice
- Alexandra C. Lambeck, MDEmergency Medicine
- Alexandra H. Nicholson, MDNeurology
- Alexis A. Thompson, PAPhysician Assistant
- Ali Pandamouz, MDFamily Practice
- Alicia K. Florez, NPNurse Practitioner
- Alicia N. TeferiGeneral Surgery
- Alireza Hosseini, MDEndocrinology
- Allison S. Essary, NPNurse Practitioner
- Amanda L. Smithers, PAPhysician Assistant
- Amanda R. Doherty, MDPathology
- Amandabrett Oliver, NPNurse Practitioner
- Amber Chatwin, MDOrthopedic Surgery
- Andre P. Lallande, DOFamily Practice
- Andrea C. Ortiz, NPNurse Practitioner
- Andrew A. Lee, NPNurse Practitioner
- Andrew K. Chinnock, NPNurse Practitioner
- Angela M. Brockman, NPNurse Practitioner
- Ann C. Larocca, NPNurse Practitioner
- Anna M. Antonowich, NPNurse Practitioner
And 433 more: the button below opens the full list.
Names link to the doctor’s page on this site when there is one, otherwise to the official NPI Registry record (U.S. Department of Health and Human Services). Find a doctor · Source: CMS Facility Affiliation Data
Other emergency rooms nearby
Hospitals that list emergency services, by straight-line distance (not driving distance).
- Sutter Lakeside Hospital16 mi · Lakeport, CA · Critical Access Hospital
- Healdsburg Hospital27 mi · Healdsburg, CA · Critical Access Hospital
- Adventist Health St Helena32 mi · Saint Helena, CA · Acute Care Hospital
- Adventist Health Ukiah Valley32 mi · Ukiah, CA · Acute Care Hospital
- Kaiser Foundation Hospital-Santa Rosa34 mi · Santa Rosa, CA · Acute Care Hospital
Other hospitals nearby
- Sutter Santa Rosa Regional Hospital34 mi · Santa Rosa, CA · Acute Care Hospital
Nursing homes, hospice, home health and dialysis nearby
Medicare-certified providers within 25 miles, by straight-line distance. Hospice and home health care is given at home: their address is the office.
Nursing homes
- Meadowood Nursing Center2.0 mi · Clearlake, CA · 2 of 5 stars
- Rocky Point Care Center16 mi · Lakeport, CA · 3 of 5 stars
- Lakeport Post Acute16 mi · Lakeport, CA · 3 of 5 stars
All nursing homes in the state →
Hospice providers
- Hospice Services of Lake County17 mi · Lakeport, CA
All hospice providers in the state →
Home health agencies
- Adventist Health Home Care Services6.6 mi · Lower Lake, CA
- Sutter Care at Home17 mi · Lakeport, CA · 4 of 5 stars
All home health agencies in the state →
Dialysis facilities
- DaVita Lakeport Dialysis Center17 mi · Lakeport, CA · 4 of 5 stars
Outpatient surgery centers nearby
Medicare-certified ambulatory surgery centers within 25 miles, by straight-line distance.
- Specialty Care and Surgery Center9.0 mi · Kelseyville, CA
Community care nearby
Health centers, clinics, urgent care and pharmacies closest to this hospital, by straight-line distance, from official HRSA, Medicare and NPI Registry data. In a medical emergency, call 911.
Community health centers
- Lakeview Health Center16 mi · Lakeport, CA · Community health center
- Lake County Tribal Health Consortium Inc17 mi · Lakeport, CA · Community health center
- Alexander Valley Dental Clinic24 mi · Cloverdale, CA · Community health center
Clinics and urgent care
- Adventist Health Clear Lake0.0 mi · Clearlake, CA · Rural health clinic
- Adventist Health Clear Lake0.0 mi · Clearlake, CA · Rural health clinic
- Adventist Health Clear Lake6.6 mi · Lower Lake, CA · Rural health clinic
Pharmacies
- Lake Health Services0.0 mi · Clearlake, CA · Community/retail pharmacy
- Walmart Inc.0.0 mi · Clearlake, CA · Community/retail pharmacy
Assisted living nearby
Licensed homes from the official state licence list, by straight-line distance.
- Orchard Park Al and Memory Care0.0 mi · Clearlake, CA
- A Nice Care Home15 mi · Nice, CA
About the Medicare star rating
CMS (the federal Medicare agency) gives many hospitals an overall rating from 1 to 5 stars, based on measures of mortality, safety, readmissions, patient experience and timely care. It is one piece of information: ask your doctor what matters for your care. See the full Medicare profile →
Medicare quality data
What Adventist Health Clearlake reported to Medicare (CMS), the federal agency that publishes these results for hospitals nationwide. These are averages for many patients, not a prediction for any one person: ask your doctor what matters for your care. In a medical emergency, call 911.
What patients said (patient survey)
What this means: Patients who stayed overnight answered a national survey (HCAHPS) about their stay. More stars mean patients reported a better experience than at other hospitals. The percentages show how often patients gave the best answer, next to the national average.
| Summary star rating (all survey topics) | 4 of 5 stars |
|---|---|
| Overall rating of the hospital | 3 of 5 stars |
| Would recommend the hospital | 4 of 5 stars |
| Nurses communicated well | 4 of 5 stars |
| Doctors communicated well | 2 of 5 stars |
| Staff explained medicines | 3 of 5 stars |
| Information about recovery at home | 5 of 5 stars |
| Room and bathroom kept clean | 5 of 5 stars |
| Quiet at night | 3 of 5 stars |
| Rated the hospital 9 or 10 out of 10 | 65%National average: 72% |
| Would definitely recommend the hospital | 67%National average: 71% |
| Nurses “always” communicated well | 82%National average: 80% |
| Doctors “always” communicated well | 70%National average: 80% |
| Staff “always” explained medicines before giving them | 63%National average: 62% |
| Were given information about recovery at home | 91%National average: 86% |
| Room and bathroom “always” clean | 84%National average: 74% |
| Area around the room “always” quiet at night | 54%National average: 60% |
| Completed surveys | 179Response rate: 19% |
Source: Patient survey (HCAHPS) - Hospital — CMS, released July 22, 2026; patients discharged October 2024 to September 2025.
Infections caught in the hospital
What this means: CMS compares the number of infections patients caught in this hospital with the number expected for a hospital like it. The number shown is that ratio: below 1 means fewer infections than expected, above 1 means more. “Better” or “worse” is shown only when the difference is clear in the data.
| Central line bloodstream infections (CLABSI) | Not reported to Medicare |
|---|---|
| Catheter-associated urinary tract infections (CAUTI) | 0No different from the national benchmark |
| Surgical site infections after colon surgery | Not reported to Medicare |
| Surgical site infections after abdominal hysterectomy | Not reported to Medicare |
| MRSA bloodstream infections | Not reported to Medicare |
| Clostridioides difficile (C. diff) intestinal infections | 0.497No different from the national benchmark |
Source: Healthcare Associated Infections - Hospital — CMS, released July 22, 2026; data from October 2024 to September 2025.
Complications and deaths
What this means: Death rates are the share of patients who died within 30 days of going into the hospital for that condition, adjusted for how sick they were. PSI-90 combines several serious complications (a lower number is better). “No different from the national rate” is the most common result and means the hospital is in line with hospitals nationwide.
| Deaths within 30 days: heart attack patients | Too few cases to report |
|---|---|
| Deaths within 30 days: heart failure patients | 12.6% |
| Deaths within 30 days: pneumonia patients | 14.1% |
| Deaths within 30 days: COPD patients | 8.5% |
| Deaths within 30 days: stroke patients | 9.7% |
| Deaths within 30 days: coronary bypass surgery (CABG) | Not reported to Medicare |
| Serious complications (patient safety indicator PSI-90) | Not reported to Medicare |
| Complications after hip or knee replacement | Not reported to Medicare |
Source: Complications and Deaths - Hospital — CMS, released September 10, 2026; data from July 2022 to June 2025.
Return visits to the hospital (readmissions)
What this means: The share of patients who had to be admitted to a hospital again within 30 days after going home, adjusted for how sick they were. A lower percentage is better.
| Returned to any hospital within 30 days (all patients) | Not reported to Medicare |
|---|---|
| Readmitted within 30 days: heart attack | Too few cases to report |
| Readmitted within 30 days: heart failure | 20.7% |
| Readmitted within 30 days: pneumonia | 16.4% |
| Readmitted within 30 days: COPD | 19.4% |
| Readmitted within 30 days: coronary bypass surgery | Not reported to Medicare |
| Readmitted within 30 days: hip or knee replacement | Not reported to Medicare |
Source: Unplanned Hospital Visits - Hospital — CMS, released September 10, 2026; data from July 2023 to June 2025.
Emergency room times and sepsis care
What this means: ER time is the middle (median) time from arriving at the emergency room to leaving it; busier ERs usually have longer times, so the ER volume is shown too. Leaving before being seen: a lower percentage is better. Sepsis is a life-threatening reaction to an infection; a higher percentage means more patients got every recommended early step.
| Emergency room volume (patients per year) | Medium (20,000–39,999) |
|---|---|
| Average (median) time patients spent in the emergency room before leaving (OP-18b) | 160 minutesNational average: 162 minutes |
| Patients who left the emergency room before being seen (OP-22) | 6%National average: 2% |
| Sepsis patients who got all the recommended early care (SEP-1) | Not reported to Medicare |
Source: Timely and Effective Care - Hospital — CMS, released July 22, 2026; data from January 2024 to December 2024.
ER wait times and Medicare ratings nearby
How this hospital compares with others in the area, ranked only by official Medicare (CMS) numbers.
Prices
We have not been able to read a price file for Adventist Health Clearlake yet. Every US hospital must publish its standard charges online (federal price transparency rule): look for “price transparency” or “standard charges” on the hospital’s website, or call the hospital and ask for an estimate. In a medical emergency, call 911.
Hospital information
| Hospital type | Critical Access Hospital |
|---|---|
| Address | 15630 18th Ave - Hwy 53, Clearlake, CA 95422 |
| County | Lake County |
| State | California |
| Phone | (707) 994‑6486 |
| Emergency services | Yes |
| Ownership | Voluntary non-profit - Private |
| Medicare overall rating | 2 of 5 stars |
| Birthing-friendly designation | Yes (meets CMS criteria) |
| CMS Certification Number | 051317 |
| Name in Medicare records | ADVENTIST HEALTH CLEARLAKE |
| Profile level | Medicare data + hospital website |
| Name on the hospital’s website | Adventist Health Clear Lake Medical Center |
| Official website | adventisthealth.org |
| Corrections | Report an error or suggest an update → |
Sources
- Hospital General Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-07-22, retrieved 2026-10-29
- Medicare Care Compare — official Medicare profile of this hospital
- U.S. Census Bureau ZIP code areas (Gazetteer) — approximate position (center of the ZIP code area) used for distances
From the hospital’s website
Numbers match the citations above. Checked 2026-10-30.
- About Us - Adventist Health Clear Lake — adventisthealth.org
- Locations - Adventist Health Clear Lake — adventisthealth.org
- Visitor Information - Adventist Health Clear Lake — adventisthealth.org
- Accreditations and Awards - Adventist Health Clear Lake — adventisthealth.org
- Emergency Care - Clear Lake - Adventist Health — adventisthealth.org
- Accreditations and Awards - Clear Lake - Adventist Health — adventisthealth.org
- Heart and Vascular Care - Clear Lake - Adventist Health — adventisthealth.org
- Maternity - Clear Lake - Adventist Health — adventisthealth.org