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Alexis Regina Alexandridis, MD

General Surgery · Sonoma

NPI 1093925182

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
New York Medical College, 2006

Offices

1 location · Sonoma Valley Health Care District · 6 clinicians in this group

Looking this up.

Hospitals listed: Sonoma Valley Hospital. 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. Alexandridis’s office at (707) 938-7690 to ask if they take your plan before you enroll.

California Medical Board record

Licence C151087 · Current

Licensed to practise in California · since 2017 · expires 2028-11-30 · New York Medical College.

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.

  • Sonoma Valley HospitalSonoma, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency departmentPatients rate it 4 of 5 · 79% would definitely recommend it
    Overall rating: 2 of 5 starsNo measure marked better or worse than the national rate
See every measure and the patient survey for Sonoma Valley Hospital

Behind the star rating — Deaths: 0 better, 5 the same, 0 worse of 5 measures. Safety: 0 better, 2 the same, 0 worse of 2 measures. Readmissions: 0 better, 6 the same, 0 worse of 6 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Sonoma Valley Hospital
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.11 (0.63 to 1.6)No differentJul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths8.2 · 37 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths11 · 41 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths16.6 · 106 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.6 · 35 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths5.6 · 345 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.21 (0 to 0.44) · 713 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.27 (0.05 to 0.48) · 660 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.36 (0.77 to 5.94) · 101 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.65 (0 to 3.38) · 27 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.31 (0.58 to 4.03) · 100 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths8.86 (0 to 18.76) · 28 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.15 (0.84 to 9.45) · 27 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths1.12 (0 to 2.33) · 540 casesNo differentJul 2022 – Jun 2024
Clostridium Difficile (C.Diff)Infections0.651No differentOct 2024 – Sep 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits21.1 · 60 casesNoneJul 2023 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits15.5 · 47 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits7.1 · 100 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits18 · 105 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.7 · 47 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.6 (10.2 to 17.9) · 486 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.6 to 1.3) · 83 casesNo differentJan 2024 – Dec 2024

What patients said (164 patients answered, 31% of those asked)

Patient survey stars by topic at Sonoma Valley Hospital
Cleanliness4
Nurse communication5
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness3
Recommend hospital4
Share of patients giving the best answer at Sonoma Valley Hospital
Room was "always" clean74%
Nurses "always" communicated well85%
Doctors "always" communicated well88%
Staff "always" explained65%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand84%
Doctors "always" listened carefully88%
Doctors "always" treated them with courtesy and respect92%
Patients who gave a rating of "9" or "10" (high)74%
Staff "always" explained new medications77%
Nurses "always" explained things so they could understand81%
Nurses "always" listened carefully82%
Nurses "always" treated them with courtesy and respect91%
"Always" quiet at night52%
"YES", patients would definitely recommend the hospital79%
Staff "always" explained possible side effects53%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$61,067

Medicare paid this office $61,067 for 264 people.

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

Largest Original Medicare bills
New patient visit (30+ min)96$7,490$78
Removal of polyps or growths of large bowel using an endoscope with mechanical snare31$5,840$182
New patient visit (45+ min)32$3,983$124
Biopsy of large bowel using a flexible endoscope34$3,840$110
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk20$3,748$187
See all 14 services
Every Original Medicare service billed
New patient visit (30+ min)96$7,490$78
Removal of polyps or growths of large bowel using an endoscope with mechanical snare31$5,840$182
New patient visit (45+ min)32$3,983$124
Biopsy of large bowel using a flexible endoscope34$3,840$110
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk20$3,748$187
Diagnostic exam of large bowel using a flexible endoscope19$2,456$129
Colorectal cancer screening; colonoscopy on individual at high risk12$2,250$187
Short return visit (20+ min)30$2,130$67
Return visit (30+ min)19$1,993$105
Long return visit (40+ min)11$1,913$147
New patient visit (15+ min)34$1,769$52
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope17$1,226$72
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope14$996$71
Short return visit11$497$41

Procedures Medicare counted

Procedure volume Medicare published
Colonoscopy191More than 93% of doctors who do this
Hernia repair - groin (open)1-10None
Mastectomy1-10None
Upper gastrointestinal (GI) endoscopy for acid reflux34More than 58% of doctors who do this

Procedures year by year

Procedures billed to Original Medicare by year
Procedure201920202021202220232024
Diagnostic exam of large bowel using a flexible endoscope193267752619
Removal of polyps or growths of large bowel using an endoscope with mechanical snare–2249513132
Biopsy of large bowel using a flexible endoscope–2934344235
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope111112121414
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope–––141217

Times billed to Original Medicare each year. A blank year means fewer than 11 people had it, or none: Medicare does not publish smaller counts. Medicare Advantage patients are not included.

Who their Medicare patients are

264 Original Medicare patients in 2024. Average age 72 · Under 65 7% · 85 and older 7% · Women 55% · Also on Medicaid 27% · Health risk score 0.99. At or below the middle of the specialty; the typical general surgery clinician is at 1.69.

Conditions among them: High blood pressure 63% · Diabetes 23% · Cancer 18% · Atrial fibrillation 17% · Chronic kidney disease 16% · Coronary heart disease 15% · Depression 13% · Heart failure 9% · COPD 7% · Stroke 6%.

The office billed $192,076, Medicare allowed $84,464 and paid $61,067; for 469 services of 49 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
2024264469720.99$192,076$61,067
2023256442730.97$201,462$60,852
2022307533740.93$234,243$75,362
2021301573740.88$250,176$83,170
2020183337730.96$152,425$49,508
2019169344751.30$168,510$56,911
2018133240761.72$76,459$29,139
2017167369711.23$172,199$53,848
2016229436711.27$190,022$61,654
2015223440711.14$192,254$66,936
2014243566721.00$231,814$84,577
2013174481721.45$217,230$69,502

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: 13 services

Original Medicare services billed in 2023
Colorectal cancer screening; colonoscopy on individual at high risk34$6,361$187
New patient visit (45+ min)46$5,762$125
Removal of polyps or growths of large bowel using an endoscope with mechanical snare31$4,905$158
Biopsy of large bowel using a flexible endoscope42$4,685$112
New patient visit (30+ min)49$3,849$79
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk20$3,801$190
Diagnostic exam of large bowel using a flexible endoscope26$3,337$128
Return visit (30+ min)29$3,328$104
Long return visit (40+ min)17$2,466$137
Short return visit (20+ min)21$1,801$75
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope14$1,201$86
New patient visit (15+ min)21$1,077$51
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope12$863$72

2022: 13 services

Original Medicare services billed in 2022
Removal of polyps or growths of large bowel using an endoscope with mechanical snare51$10,159$199
Diagnostic exam of large bowel using a flexible endoscope72$9,939$133
New patient visit (30+ min)89$6,821$77
New patient visit (45+ min)50$6,190$124
Biopsy of large bowel using a flexible endoscope34$5,182$152
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk16$3,101$194
Colorectal cancer screening; colonoscopy on individual at high risk13$2,530$195
Return visit (30+ min)21$2,391$104
Short return visit (20+ min)29$2,200$69
New patient visit (15+ min)27$1,286$48
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope12$910$76
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope14$792$57
Short return visit12$547$46

2021: 13 services

Original Medicare services billed in 2021
Removal of polyps or growths of large bowel using an endoscope with mechanical snare48$10,444$213
Diagnostic exam of large bowel using a flexible endoscope66$9,722$145
New patient visit (30+ min)125$9,551$76
New patient visit (45+ min)55$6,932$126
Biopsy of large bowel using a flexible endoscope34$5,076$149
Colorectal cancer screening; colonoscopy on individual at high risk19$3,744$197
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk16$3,156$197
Long return visit (40+ min)17$2,676$149
New patient visit (60+ min)13$2,493$192
New patient visit (15+ min)45$1,995$44
Return visit (30+ min)11$1,402$108
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope12$1,064$89
Short return visit (20+ min)14$1,014$68

2020: 10 services

Original Medicare services billed in 2020
New patient visit (30+ min)70$5,751$82
Diagnostic exam of large bowel using a flexible endoscope31$4,909$153
Removal of polyps or growths of large bowel using an endoscope with mechanical snare22$4,583$208
Biopsy of large bowel using a flexible endoscope29$4,321$149
New patient visit (45+ min)26$3,134$121
New patient visit (60+ min)16$2,307$144
Return visit (30+ min)17$1,512$80
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope11$1,074$98
Short return visit (20+ min)20$1,066$53
New patient visit (15+ min)12$664$55

2019: 7 services

Original Medicare services billed in 2019
New patient visit (45+ min)57$6,484$114
Diagnostic exam of large bowel using a flexible endoscope19$2,803$148
New patient visit (60+ min)18$2,690$149
New patient visit (30+ min)26$2,089$80
Short return visit (20+ min)21$1,311$60
Return visit (30+ min)11$916$83
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope11$738$67

2018: 4 services

Original Medicare services billed in 2018
New patient visit (45+ min)33$3,939$119
New patient visit (30+ min)27$2,215$82
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes14$1,516$108
New patient visit (15+ min)28$1,121$40

2017: 11 services

Original Medicare services billed in 2017
Removal of polyps or growths of large bowel using an endoscope with mechanical snare20$3,897$195
Initial hospital care with moderate level of medical decision making at least 75 minutes18$2,654$147
New patient visit (45+ min)23$2,512$109
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk13$2,223$171
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes15$1,542$103
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope18$1,481$82
Return visit (30+ min)16$1,359$72
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes13$1,296$54
New patient visit (30+ min)19$1,266$67
Short return visit (20+ min)23$1,194$50
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes23$213$9

2016: 10 services

Original Medicare services billed in 2016
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk33$5,986$181
Initial hospital care with moderate level of medical decision making at least 75 minutes32$4,475$140
New patient visit (45+ min)46$4,453$97
Return visit (30+ min)49$3,889$63
Removal of polyps or growths of large bowel using an endoscope with mechanical snare14$2,616$187
Diagnostic exam of large bowel using a flexible endoscope16$2,213$138
Biopsy of large bowel using a flexible endoscope18$2,194$122
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope25$2,148$86
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes13$948$50
New patient visit (15+ min)20$657$33

2015: 10 services

Original Medicare services billed in 2015
New patient visit (45+ min)63$6,906$110
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk27$5,381$199
Biopsy of large bowel using a flexible endoscope31$5,118$165
Return visit (30+ min)60$4,738$71
Removal of polyps or growths of large bowel using an endoscope with mechanical snare18$4,177$232
Initial hospital care with moderate level of medical decision making at least 75 minutes21$2,991$142
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope23$2,236$93
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope26$2,005$74
Diagnostic exam of large bowel using a flexible endoscope11$1,817$165
Short return visit (20+ min)11$609$51

2014: 10 services

Original Medicare services billed in 2014
New patient visit (45+ min)81$9,515$117
Initial hospital care with moderate level of medical decision making at least 75 minutes45$6,773$151
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk23$4,689$204
Biopsy of large bowel using a flexible endoscope22$4,517$196
Return visit (30+ min)51$4,267$69
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes28$3,493$55
Removal of polyps or growths of large bowel using an endoscope with mechanical snare15$3,413$228
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope28$2,628$91
Short return visit (20+ min)30$1,831$52
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope16$1,328$83

2013: 9 services

Original Medicare services billed in 2013
Initial hospital care with moderate level of medical decision making at least 75 minutes39$5,993$150
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes34$3,825$54
Short return visit (20+ min)49$3,393$52
New patient visit (30+ min)41$2,976$73
New patient visit (45+ min)20$2,488$124
Biopsy of large bowel using a flexible endoscope13$2,407$185
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope21$2,378$113
Return visit (30+ min)16$2,037$81
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope15$1,502$100

Medicaid work

$11,746 in 2024

Medicaid paid $11,746 for 116 billed services this clinician did in 2024, up to 23 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
New patient visit (30+ min)91$7,006
DIAGNOSTIC COLONOSCOPY13$3,418
New patient visit (45+ min)12$1,323
Medicaid work by year
2024116323$11,746
202316113$8,739
202227115$2,459
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
DIAGNOSTIC COLONOSCOPY16$8,739

2022

Largest Medicaid services in 2022
New patient visit (30+ min)27$2,459

Drugs they prescribed that Part D paid

$3,008

Pharmacies billed $3,008 in 2024.

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

38 generic and fewer than 11 brand-name prescriptions · $3,008 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.

Year by year

Part D prescribing by year
20244027NoneNone$3,008
20233815NoneNone$900
2022332333% (11)None$686
2021443355% (24)0%$258
2020492847% (23)None$566
2019382553% (20)None$384
2018282146% (13)None$884
2017473851% (24)23%$1,239
2016804843% (34)None$2,640
20151015038% (38)None$2,021
20141458120% (29)12%$5,974
20131436629% (41)11%$4,886

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

See the drugs prescribed each year

2021: 2 drugs

Part D drugs prescribed in 2021
Omeprazole11$158$14
Tramadol22$28$1

2020: 2 drugs

Part D drugs prescribed in 2020
Omeprazole11$142$13
Tramadol17$31$2

2019: 1 drug

Part D drugs prescribed in 2019
Tramadol20$48$2

2017: 1 drug

Part D drugs prescribed in 2017
Tramadol20$74$4

2016: 2 drugs

Part D drugs prescribed in 2016
Omeprazole15$153$10
Tramadol28$92$3

2015: 3 drugs

Part D drugs prescribed in 2015
Omeprazole27$416$15
Anastrozole11$72$7
Tramadol13$48$4

2014: 4 drugs

Part D drugs prescribed in 2014
Suprep16$1,244$78
Anastrozole12$486$40
Omeprazole32$477$15
Hydrocodone-Acetaminophen22$291$13

2013: 3 drugs

Part D drugs prescribed in 2013
Omeprazole28$724$26
Anastrozole12$604$50
Hydrocodone-Acetaminophen33$411$12

Money from drug and device companies

$39 in 2024

Industry payments by year
202422None$39
201911None$14

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Myriad Genetic LaboratoriesMyrisk$22
1 payment
  • Meals for Myrisk · 2024-10-23 · $22
Hologic Sales and ServiceCoolseal Generator$17
1 payment
  • Meals for Coolseal Generator · 2024-12-04 · $17
See all 2 published payments
Every published payment
Hologic Sales and ServiceMeals · 2024-12-04Coolseal Generator$17
Myriad Genetic LaboratoriesMeals · 2024-10-23Myrisk$22
See earlier years (2019)

2019: $14

Payments by company in 2019
AcellNone$14
1 payment
  • Meals · 2019-05-15 · $14

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
66.3 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1093925182
Licence
CA C151087, OR LL15958California C151087: Current · expires 2028-11-30
Trained
New York Medical College, 2006 · 20 years ago
Gender
Female
More record details
Sole proprietor
Yes
Taxonomy
Surgery (208600000X)
Mailing address
246 Perkins St, Sonoma, CA, 95476
NPI first listed
2007-05-23
NPI last updated
2024-09-23
NPI record certified
2024-09-23

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