Johnathan Pjh Pak, MD
Anesthesiology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 6
- 2 carriers
- Office
- 1
Offices
1 location · G2 Anesthesia PC · 104 clinicians in this group
Looking this up.
Hospitals listed: Good Samaritan Hospital. That is not proof they admit you there this week.
Plans that list them
6 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Pak’s office at (408) 559-2011 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
6 of 6 plans
| Astiva Health C-SNP WOW - NorCal (HMO C-SNP) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Premier Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Savings Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Imperial Courage Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Dynamic Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Senior Value (HMO C-SNP) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
California Medical Board record
Licence A76875 · Current
Licensed to practise in California · since 2001 · expires 2027-07-31 · University of Rochester 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.
- Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend itOverall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025
See every measure and the patient survey for Good Samaritan Hospital
Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 1 better, 6 the same, 1 worse of 8 measures. Readmissions: 0 better, 5 the same, 4 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Clostridium Difficile (C.Diff)Infections | 0.337 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.75 (0 to 1.67) · 1,340 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.84 (0.54 to 1.14) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 143.59 (98.7 to 188.49) · 98 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.7 · 45 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 7.1 · 100 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12.7 · 270 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 11.3 · 573 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 15.6 · 820 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.5 · 482 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.3 · 3,711 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.12 (0 to 0.3) · 8,866 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.2 (0.01 to 0.38) · 9,051 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 2.65 (0.74 to 4.56) · 1,929 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.8 (0.21 to 3.39) · 670 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.33 (0.88 to 3.78) · 1,836 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 6.73 (0 to 13.46) · 669 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 7.58 (3.96 to 11.19) · 654 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.59 (0.13 to 3.04) · 496 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.27 (0 to 0.87) · 7,373 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.1 · 152 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 1.08 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.542 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.484 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.565 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15.8 · 327 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 24.2 · 703 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 61.1 · 289 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 36.3 · 665 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 25.4 · 856 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19 · 978 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.3 · 144 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 12.3 · 46 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 21.2 · 135 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.8 (10.1 to 18.6) · 129 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1.2 (0.9 to 1.5) · 531 cases | No different | Jan 2024 – Dec 2024 |
What patients said (704 patients answered, 24% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 2 |
| Quietness | 1 |
| Recommend hospital | 3 |
| Room was "always" clean | 66% |
| Nurses "always" communicated well | 75% |
| Doctors "always" communicated well | 71% |
| Staff "always" explained | 54% |
| Yes, staff "did" give patients this information | 83% |
| Yes, staff "did" give patients information about help after discharge | 81% |
| Doctors "always" explained things so they could understand | 66% |
| Doctors "always" listened carefully | 69% |
| Doctors "always" treated them with courtesy and respect | 78% |
| Patients who gave a rating of "9" or "10" (high) | 63% |
| Staff "always" explained new medications | 68% |
| Nurses "always" explained things so they could understand | 69% |
| Nurses "always" listened carefully | 73% |
| Nurses "always" treated them with courtesy and respect | 82% |
| "Always" quiet at night | 38% |
| "YES", patients would definitely recommend the hospital | 67% |
| Staff "always" explained possible side effects | 40% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$41,894
Medicare paid this office $41,894 for 266 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for lens surgery | 92 | $10,652 | $109 |
| Anesthesia for other procedure on large bowel using an endoscope | 41 | $4,832 | $118 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 16 | $2,046 | $128 |
| Anesthesia for procedure on small and large bowel using an endoscope | 12 | $1,643 | $137 |
Who their Medicare patients are
266 Original Medicare patients in 2024. Average age 75 · Under 65 5% · 85 and older 11% · Women 60% · Also on Medicaid 14% · Health risk score 1.23. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 75% · Diabetes 29% · Coronary heart disease 27% · Chronic kidney disease 23% · Atrial fibrillation 18% · Cancer 16% · Heart failure 14% · Depression 14% · COPD 12% · Stroke 8% · Dementia 4%.
The office billed $626,768, Medicare allowed $52,443 and paid $41,894; for 286 services of 48 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 | 266 | 286 | 75 | 1.23 | $626,768 | $41,894 |
| 2023 | 246 | 251 | 75 | 0.94 | $393,800 | $33,799 |
| 2022 | 216 | 234 | 75 | 0.94 | $372,814 | $32,955 |
| 2021 | 265 | 279 | 74 | 1.11 | $426,856 | $38,962 |
| 2020 | 197 | 221 | 73 | 1.10 | $355,236 | $31,841 |
| 2019 | 281 | 310 | 76 | 1.33 | $421,265 | $47,027 |
| 2018 | 190 | 256 | 74 | 1.47 | $327,842 | $41,400 |
| 2017 | 208 | 244 | 75 | 1.69 | $289,649 | $41,776 |
| 2016 | 181 | 240 | 75 | 1.41 | $278,328 | $41,171 |
| 2015 | 214 | 260 | 73 | 1.49 | $256,905 | $42,204 |
| 2014 | 171 | 214 | 73 | 1.27 | $225,907 | $37,400 |
| 2013 | 149 | 228 | 75 | 1.55 | $233,541 | $37,146 |
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: 6 services
| Anesthesia for lens surgery | 69 | $7,640 | $111 |
| Anesthesia for other procedure on large bowel using an endoscope | 67 | $7,470 | $111 |
| Anesthesia for procedure on eyelid | 14 | $2,472 | $165 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 20 | $2,307 | $115 |
| Anesthesia for exam of colon using an endoscope | 19 | $2,157 | $114 |
| Anesthesia for procedure on small and large bowel using an endoscope | 11 | $1,606 | $146 |
2022: 6 services
| Anesthesia for lens surgery | 53 | $6,218 | $115 |
| Anesthesia for other procedure on large bowel using an endoscope | 39 | $5,345 | $134 |
| Anesthesia for procedure on small and large bowel using an endoscope | 15 | $2,089 | $139 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 16 | $1,858 | $116 |
| Anesthesia for exam of colon using an endoscope | 16 | $1,701 | $106 |
| Anesthesia for other procedure on eye | 11 | $1,587 | $144 |
2021: 5 services
| Anesthesia for other procedure on large bowel using an endoscope | 94 | $12,296 | $131 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 37 | $4,444 | $120 |
| Anesthesia for lens surgery | 32 | $3,733 | $117 |
| Anesthesia for procedure on small and large bowel using an endoscope | 25 | $3,682 | $147 |
| Anesthesia for exam of colon using an endoscope | 17 | $1,960 | $115 |
2020: 4 services
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 44 | $5,856 | $133 |
| Anesthesia for other procedure on large bowel using an endoscope | 38 | $5,422 | $139 |
| Anesthesia for lens surgery | 25 | $2,916 | $117 |
| Anesthesia for exam of colon using an endoscope | 16 | $1,977 | $124 |
2019: 5 services
| Anesthesia for other procedure on large bowel using an endoscope | 58 | $8,111 | $140 |
| Anesthesia for lens surgery | 57 | $7,011 | $121 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 23 | $3,177 | $132 |
| Anesthesia for procedure on small and large bowel using an endoscope | 16 | $2,388 | $149 |
| Anesthesia for exam of colon using an endoscope | 11 | $1,313 | $119 |
2018: 3 services
| Anesthesia for other procedure on large bowel using an endoscope | 27 | $3,807 | $141 |
| Anesthesia for lens surgery | 21 | $2,749 | $131 |
| Ultrasonic guidance for needle placement | 15 | $438 | $29 |
2017: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 55 | $8,014 | $146 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 22 | $3,305 | $144 |
| Anesthesia for lens surgery | 22 | $2,730 | $124 |
2016: 4 services
| Anesthesia for procedure on lower intestine using an endoscope | 33 | $4,757 | $144 |
| Anesthesia for other procedure on upper abdomen | 13 | $3,922 | $302 |
| Anesthesia for lens surgery | 17 | $2,433 | $135 |
| Ultrasonic guidance for needle placement | 14 | $420 | $30 |
2015: 4 services
| Anesthesia for procedure on lower intestine using an endoscope | 49 | $7,027 | $143 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 27 | $3,780 | $140 |
| Anesthesia for lens surgery | 20 | $2,888 | $144 |
| Ultrasonic guidance for needle placement | 16 | $475 | $30 |
2014: 3 services
| Anesthesia for procedure on lower intestine using an endoscope | 34 | $4,706 | $138 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 13 | $1,866 | $144 |
| Ultrasonic guidance for needle placement | 11 | $329 | $27 |
2013: 5 services
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 16 | $2,672 | $157 |
| Anesthesia for other procedure on lower leg, ankle, and foot bones | 12 | $2,232 | $186 |
| Anesthesia for procedure on lower intestine using an endoscope | 15 | $2,160 | $144 |
| Insertion of artery tube for blood sampling or infusion through skin | 15 | $648 | $43 |
| Ultrasonic guidance for needle placement | 14 | $404 | $29 |
Money from drug and device companies
$15 in 2024
| 2024 | 1 | 1 | None | $15 |
| 2023 | 1 | 1 | None | $24 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Ferring Pharmaceuticals | Euflexxa | $15 | 1 payment
|
See the published payment
| Ferring Pharmaceuticals | Meals · 2024-01-25 | Euflexxa | $15 |
See earlier years (2023)
2023: $24
| Boston Scientific | Resolution 360 Ultra Clip | $24 | 1 payment
|
Professional record
- NPI
- 1992723456
- Licence
- CA A76875California A76875: Current · expires 2027-07-31
- Trained
- University of Rochester School of Medicine and Dentistry, 2000
- Group
- G2 Anesthesia PC
- Gender
- Male
More record details
- Sole proprietor
- No
- Medicaid ID
- CA 00A768750
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- Po Box 51451, Los Angeles, CA, 90051
- NPI first listed
- 2006-07-17
- NPI last updated
- 2014-05-15
This is when the NPI record was last certified, not a medical board exam.