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Anna Mikhailovna Waterstone

Emergency Medicine · Redwood City

NPI 1396241543

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
8 years
Wake Forest University School of Medicine, 2018

Offices

1 location · Permanente Medical Group Inc · 10,928 clinicians in this group

Looking this up.

Hospitals listed: Kaiser Foundation Hospital - Redwood City. 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 Anna Mikhailovna Waterstone’s office at (650) 299-2000 to ask if they take your plan before you enroll.

California Medical Board record

Licence A163610 · Current

Licensed to practise in California · since 2019 · expires 2027-07-31 · Wake Forest School of Medicine of Wake Forest Baptist Medical Center.

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 Emergency Medicine - Emergency Medicine

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.

  • Kaiser Foundation Hospital - Redwood CityRedwood City, 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 4 of 5 · 80% would definitely recommend it
    Overall rating: 4 of 5 starsWorse than the national rate — SSI - Colon Surgery: 3.075, Oct 2024 – Sep 2025Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.064, Oct 2024 – Sep 2025
See every measure and the patient survey for Kaiser Foundation Hospital - Redwood City

Behind the star rating — Deaths: 0 better, 2 the same, 0 worse of 2 measures. Safety: 2 better, 4 the same, 0 worse of 6 measures. Readmissions: 0 better, 1 the same, 0 worse of 1 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 - Redwood City
SSI - Colon SurgeryInfections3.075WorseOct 2024 – Sep 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.064BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.04 (0 to 2.12) · 81 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.91 (0.43 to 1.39)No differentJul 2022 – Jun 2024
Death rate for stroke patientsComplications and deaths13.3 · 366 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths4.3 · 1,523 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.2 (0 to 0.44) · 477 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.26 (0.05 to 0.48) · 479 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.19 (0.67 to 5.72) · 160 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.66 (0 to 3.38) · 73 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.21 (0.52 to 3.9) · 167 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths8.49 (0 to 18.18) · 69 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.03 (0.77 to 9.28) · 75 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.49 (0 to 1.69) · 311 casesNo differentJul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.719No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.2 · 71 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits21 · 204 casesNoneJul 2023 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.3 · 209 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20 · 45 casesNoneJul 2023 – Jun 2025

What patients said (1,673 patients answered, 27% of those asked)

Patient survey stars by topic at Kaiser Foundation Hospital - Redwood City
Cleanliness4
Nurse communication3
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness3
Recommend hospital5
Share of patients giving the best answer at Kaiser Foundation Hospital - Redwood City
Room was "always" clean76%
Nurses "always" communicated well78%
Doctors "always" communicated well81%
Staff "always" explained62%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand77%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect86%
Patients who gave a rating of "9" or "10" (high)79%
Staff "always" explained new medications75%
Nurses "always" explained things so they could understand74%
Nurses "always" listened carefully76%
Nurses "always" treated them with courtesy and respect85%
"Always" quiet at night57%
"YES", patients would definitely recommend the hospital80%
Staff "always" explained possible side effects49%
Yes, staff "did" give patients information about possible symptoms88%

Original Medicare doctor bills

$3,701

Medicare paid this office $3,701 for 26 people.

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

Largest Original Medicare bills
Emergency department visit with moderate level of medical decision making16$1,907$100

Who their Medicare patients are

26 Original Medicare patients in 2024. Average age 69 · Health risk score 1.38. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.

Conditions among them: High blood pressure 62%.

The office billed $22,511, Medicare allowed $4,743 and paid $3,701; for 34 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.

Year by year

Original Medicare by year
20242634691.38$22,511$3,701
20231113713.10$10,670$1,689

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.

Medicaid work

$41,233 in 2024

Medicaid paid $41,233 for 314 billed services this clinician did in 2024, up to 28 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
EMERGENCY DEPARTMENT VISIT HIGH MDM145$24,750
EMERGENCY DEPT VISIT MOD MDM169$16,484
Medicaid work by year
2024314228$41,233
2023152219$6,224
202213113$843
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
EMERGENCY DEPARTMENT VISIT HIGH MDM123$5,207
EMERGENCY DEPT VISIT MOD MDM29$1,017

2022

Largest Medicaid services in 2022
EMERGENCY DEPARTMENT VISIT HIGH MDM13$843

Drugs they prescribed that Part D paid

$7,321

Pharmacies billed $7,321 in 2024.

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

Opioids were 9% of their Part D prescriptions (24 of 283) in 2024. At or below the middle of the specialty; the typical emergency medicine clinician is at 12%.

265 generic and fewer than 11 brand-name prescriptions · $7,321 in drug cost · 80 antibiotic prescriptions to 68 people.

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
Amoxicillin-Clavulanate Potass18$228$13
Oxycodone23$146$6
Ondansetron Odt23$146$6
Naproxen15$128$9
Gabapentin14$115$8
See all 8 drugs
Every Part D drug this clinician prescribed
Amoxicillin-Clavulanate Potass18$228$13
Oxycodone23$146$6
Ondansetron Odt23$146$6
Naproxen15$128$9
Gabapentin14$115$8
Ciprofloxacin12$115$10
Ibuprofen15$109$7
Prednisone13$94$7

Year by year

Part D prescribing by year
20242832059% (24)None$7,321
20232591648% (20)None$9,980
20223621NoneNone$5,013
20213128NoneNone$1,089
20203533NoneNone$468

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

See the drugs prescribed each year

2023: 5 drugs

Part D drugs prescribed in 2023
Albuterol Sulfate Hfa12$193$16
Ibuprofen19$131$7
Oxycodone20$131$7
Ondansetron Odt18$111$6
Prednisone11$82$7

Professional record

NPI
1396241543
Licence
CA A163610California A163610: Current · expires 2027-07-31
Trained
Wake Forest University School of Medicine, 2018 · 8 years ago
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207P00000X (207P00000X); Student in a training program (390200000X)
Mailing address
1120 Bonita Ave Apt 5, Mountain View, CA, 94040
NPI first listed
2018-04-04
NPI last updated
2022-10-05
NPI record certified
2022-10-05

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

This office lists an electronic records connection.