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Nu Chai, MD

Pain Management · San Francisco

NPI 1073830477

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
9
1 carrier
Offices
3
Since medical school
16 years
Geisel School of Medicine at Dartmouth, 2010

Offices

3 locations · University of California San Francisco · UCSF Medical Group Business Services · University Anesthesia Medical Group

Looking this up.

Hospitals listed: UCSF Medical Center. That is not proof they admit you there this week.

Plans that list them

9 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chai’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026

California Medical Board record

Licence A128155 · Current

Licensed to practise in California · since 2013 · expires 2027-04-30 · Dartmouth Medical School.

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 Anesthesiology - Pain Medicine
  • American Board of Psychiatry and Neurology - Neurology

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.

  • UCSF Medical CenterSan Francisco, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of University of California Health, which runs 12 hospitalsHome of UCSF Helen Diller Family Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 81% would definitely recommend it
    Overall rating: 4 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 4.9 (3.79 to 6.02) · 7,590 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 12.8 (11.3 to 14.4) · 2,019 cases, Jan 2024 – Dec 2024Better than the national rate — Death rate among surgical inpatients with serious treatable complications: 139.4 (110.22 to 168.58) · 452 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.622, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.626, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.491, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.8 (0.7 to 1) · 2,336 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for UCSF Medical Center

Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 3 better, 5 the same, 3 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at UCSF Medical Center
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.9 (3.79 to 6.02) · 7,590 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.8 (11.3 to 14.4) · 2,019 casesWorseJan 2024 – Dec 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths139.4 (110.22 to 168.58) · 452 casesBetterJul 2022 – Jun 2024
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.622BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.626BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.491BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.8 (0.7 to 1) · 2,336 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.24 (0.58 to 1.9) · 4,689 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.05 (0.89 to 1.2)No differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.9 · 89 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.5 · 85 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.1 · 132 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.6 · 454 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 618 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.6 · 380 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.7 · 5,000 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.22 (0.06 to 0.38) · 15,965 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.2 (0.05 to 0.35) · 17,859 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.85 (0 to 1.83) · 4,184 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2 (1.1 to 2.9) · 6,516 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths7.35 (4.49 to 10.21) · 3,989 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5 (3.22 to 6.77) · 4,087 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.95 (0.74 to 3.15) · 2,034 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.95 (0.63 to 1.28) · 15,431 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4 · 399 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.899No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.689No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.224No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16 · 156 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20 · 564 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits60.3 · 160 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-9.7 · 550 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits44.1 · 660 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.8 · 667 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.7 (4.8 to 6.7) · 2,019 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits6 · 421 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.5 · 53 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20 · 107 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.9 (11.3 to 17.1) · 3,247 casesNo differentJan 2022 – Dec 2024

What patients said (3,181 patients answered, 25% of those asked)

Patient survey stars by topic at UCSF Medical Center
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at UCSF Medical Center
Room was "always" clean71%
Nurses "always" communicated well80%
Doctors "always" communicated well80%
Staff "always" explained61%
Yes, staff "did" give patients this information88%
Yes, staff "did" give patients information about help after discharge87%
Doctors "always" explained things so they could understand74%
Doctors "always" listened carefully78%
Doctors "always" treated them with courtesy and respect86%
Patients who gave a rating of "9" or "10" (high)76%
Staff "always" explained new medications75%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully78%
Nurses "always" treated them with courtesy and respect86%
"Always" quiet at night50%
"YES", patients would definitely recommend the hospital81%
Staff "always" explained possible side effects46%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$34,395

Medicare paid this office $34,395 for 123 people.

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

Largest Original Medicare bills
Long return visit (40+ min)39$5,948$110
Return visit (30+ min)41$4,642$80
Long return visit (40+ min)22$3,231$129
Return visit (30+ min)33$3,132$85
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes11$912$70
See all 7 services
Every Original Medicare service billed
Long return visit (40+ min)39$5,948$110
Return visit (30+ min)41$4,642$80
Long return visit (40+ min)22$3,231$129
Return visit (30+ min)33$3,132$85
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes11$912$70
Ultrasonic guidance for needle placement21$640$24
Ultrasonic guidance for needle placement12$370$26

Procedures year by year

Procedures billed to Original Medicare by year
Procedure201920202021202220232024
Injection of trigger points, 3 or more muscles3141505939–
Injection of anesthetic agent and/or steroid into upper neck and back of head nerve–––2825–
Injection of lower or sacral spine facet joint using imaging guidance, single level12––15––
Injection of substance into lower spine canal using imaging guidance––––15–

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

123 Original Medicare patients in 2024. Average age 65 · Under 65 37% · Women 69% · Also on Medicaid 42% · Health risk score 1.73. Above the middle of the specialty; the typical pain management clinician is at 1.38.

Conditions among them: High blood pressure 59% · Depression 42% · Diabetes 28% · Coronary heart disease 24% · Chronic kidney disease 24% · Heart failure 16% · COPD 12% · Cancer 11% · Stroke 10%.

The office billed $375,231, Medicare allowed $45,660 and paid $34,395; for 487 services of 56 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
2024123487651.73$375,231$34,395
2023124536671.38$504,626$40,104
2022169634651.43$489,180$47,827
2021174564651.78$487,220$43,617
2020109368661.33$294,684$26,164
2019111324681.78$281,388$27,255
2018125451661.49$396,164$34,004
201770149641.84$137,717$13,787

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: 7 services

Original Medicare services billed in 2023
Long return visit (40+ min)77$13,175$118
New patient visit (60+ min)26$3,926$151
Return visit (30+ min)35$3,596$80
Ultrasonic guidance for needle placement30$1,509$25
Injection of anesthetic agent and/or steroid into upper neck and back of head nerve12$1,375$55
Injection of substance into lower spine canal using imaging guidance11$1,293$86
Injection of trigger points, 3 or more muscles15$1,029$26

2022: 8 services

Original Medicare services billed in 2022
Long return visit (40+ min)74$14,173$127
New patient visit (60+ min)69$9,748$141
Return visit (30+ min)45$4,120$71
Injection of trigger points, 3 or more muscles26$1,737$29
Injection of lower or sacral spine facet joint using imaging guidance, single level12$1,518$101
Ultrasonic guidance for needle placement35$1,490$26
Injection of anesthetic agent and/or steroid into upper neck and back of head nerve19$1,448$52
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes11$543$34

2021: 10 services

Original Medicare services billed in 2021
Return visit (30+ min)73$10,012$86
New patient visit (60+ min)62$9,627$155
New patient visit (45+ min)24$2,468$103
Long return visit (40+ min)12$1,723$123
Injection of trigger points, 3 or more muscles20$1,633$33
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes13$1,428$89
Short return visit (20+ min)16$972$57
Ultrasonic guidance for needle placement19$803$27
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes11$754$34
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes15$311$11

2020: 5 services

Original Medicare services billed in 2020
Return visit (30+ min)48$6,198$65
Long return visit (40+ min)25$3,443$96
New patient visit (60+ min)20$2,750$137
New patient visit (45+ min)22$2,061$94
Injection of trigger points, 3 or more muscles22$1,479$36

2019: 6 services

Original Medicare services billed in 2019
Long return visit (40+ min)31$4,699$100
New patient visit (45+ min)34$3,927$115
New patient visit (60+ min)20$3,016$151
Return visit (30+ min)30$2,913$71
Injection of lower or sacral spine facet joint using imaging guidance, single level11$1,425$119
Injection of trigger points, 3 or more muscles17$1,131$36

2018: 9 services

Original Medicare services billed in 2018
Long return visit (40+ min)38$5,884$95
New patient visit (45+ min)58$5,678$98
Return visit (30+ min)23$2,681$65
Injection of lower or sacral spine facet joint using imaging guidance, single level15$1,872$117
New patient visit (60+ min)13$1,704$131
Injection of lower or sacral spine facet joint using imaging guidance, second level13$904$65
Injection of trigger points, 3 or more muscles11$742$35
New patient visit (30+ min)15$673$45
Ultrasonic guidance for needle placement11$636$28

2017: 4 services

Original Medicare services billed in 2017
New patient visit (60+ min)25$3,751$150
New patient visit (45+ min)18$2,076$115
Return visit (30+ min)14$1,407$67
New patient visit (30+ min)12$808$67

Medicaid work

$1,444 in 2021

Medicaid paid $1,444 for 15 billed services this clinician did in 2021, up to 12 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 2021
Return visit (30+ min)15$1,444
Medicaid work by year
202115112$1,444

Drugs they prescribed that Part D paid

$21,116

Pharmacies billed $21,116 in 2024.

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

Opioids were 10% of their Part D prescriptions (19 of 193) in 2024. At or below the middle of the specialty; the typical pain management clinician is at 44%.

168 generic and 25 brand-name prescriptions · $21,116 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.

Largest Part D drug costs
AimovigMigraine11$7,618$693
PregabalinNone38$1,474$39
DuloxetineNone43$800$19
CyclobenzaprineNone13$164$13

Year by year

Part D prescribing by year
20241933410% (19)13%$21,116
20231243217% (21)12%$18,220
20221263219% (24)None$11,734
20215420NoneNone$9,803
202019NoneNone0%$1,017
2019331236% (12)None$1,586
20185919NoneNone$3,764
201735NoneNoneNone$2,303
2015401975% (30)None$2,852
2014381645% (17)None$3,198
201349110% (0)None$2,225

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

See the drugs prescribed each year

2023: 3 drugs

Part D drugs prescribed in 2023
Buprenorphine13$6,442$496
Duloxetine20$1,208$60
Pregabalin28$1,045$37

2022: 3 drugs

Part D drugs prescribed in 2022
Buprenorphine13$5,173$398
Pregabalin36$1,332$37
Duloxetine13$279$21

2019: 1 drug

Part D drugs prescribed in 2019
Oxycodone-Acetaminophen12$185$15

2018: 2 drugs

Part D drugs prescribed in 2018
Duloxetine19$978$51
Nortriptyline15$106$7

Money from drug and device companies

$642 in 2025

Industry payments by year
2025511None$642
2024414$3,825$4,232
2023135$14,000$20,745
202224None$280
201911None$47

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
Biotronik NroProspera$437
5 payments
  • Meals for Prospera · 2025-11-20 · $82
  • Meals for Prospera · 2025-08-21 · $153
  • Meals for Prospera · 2025-04-22 · $30
  • Meals for Prospera · 2025-02-12 · $144
  • Meals for Prospera · 2025-01-09 · $28
AbbvieBotox$63
2 payments
  • Meals for Botox · 2025-09-10 · $30
  • Meals for Botox · 2025-06-12 · $33
Mml USReactiv8$57
1 payment
  • Meals for Reactiv8 · 2025-02-20 · $57
StrykerOptablate$52
2 payments
  • Meals for Optablate · 2025-12-06 · $23
  • Meals for Optablate · 2025-12-06 · $29
Vertex PharmaceuticalsNone$34
1 payment
  • Meals · 2025-02-11 · $34
See all 11 published payments
Every published payment
StrykerMeals · 2025-12-06Optablate$23
StrykerMeals · 2025-12-06Optablate$29
Biotronik NroMeals · 2025-11-20Prospera$82
AbbvieMeals · 2025-09-10Botox$30
Biotronik NroMeals · 2025-08-21Prospera$153
AbbvieMeals · 2025-06-12Botox$33
Biotronik NroMeals · 2025-04-22Prospera$30
Mml USMeals · 2025-02-20Reactiv8$57
Biotronik NroMeals · 2025-02-12Prospera$144
Vertex PharmaceuticalsMeals · 2025-02-11None$34
Biotronik NroMeals · 2025-01-09Prospera$28
See earlier years (2024, 2023, 2022, 2019)

2024: $4,232

Payments by company in 2024
Averitas PharmaQutenza$4,049
9 payments
  • Meals for Qutenza · 2024-11-14 · $12
  • Honoraria for Qutenza · 2024-10-29 · $450
  • Honoraria for Qutenza · 2024-09-24 · $250
  • Honoraria for Qutenza · 2024-07-24 · $450
  • Honoraria for Qutenza · 2024-01-17 · $2,000
  • Paid to speak or teach for Qutenza · 2024-01-17 · $675
  • Travel for Qutenza · 2024-01-17 · $68
  • Travel for Qutenza · 2024-01-17 · $16
  • Meals for Qutenza · 2024-01-09 · $128
AbbvieBotox$67
2 payments
  • Meals for Botox · 2024-10-17 · $34
  • Meals for Botox · 2024-10-02 · $33
TerSera TherapeuticsPrialt$64
2 payments
  • Meals for Prialt · 2024-10-09 · $30
  • Meals for Prialt · 2024-07-16 · $35
Biotronik NroProspera$53
1 payment
  • Meals for Prospera · 2024-03-13 · $53

2023: $20,745

Payments by company in 2023
Averitas PharmaQutenza$20,745
35 payments
  • Honoraria for Qutenza · 2023-12-19 · $2,000
  • Honoraria for Qutenza · 2023-12-12 · $2,000
  • Honoraria for Qutenza · 2023-11-06 · $2,000
  • Honoraria for Qutenza · 2023-10-17 · $2,000
  • Travel for Qutenza · 2023-10-17 · $1,575
  • Travel for Qutenza · 2023-10-17 · $30
  • Meals for Qutenza · 2023-10-17 · $21
  • Travel for Qutenza · 2023-10-17 · $33
  • Travel for Qutenza · 2023-10-17 · $2
  • Travel for Qutenza · 2023-10-17 · $39
  • Travel for Qutenza · 2023-10-17 · $37
  • Travel for Qutenza · 2023-10-17 · $2
  • Travel for Qutenza · 2023-10-09 · $219
  • Travel for Qutenza · 2023-10-09 · $257
  • Travel for Qutenza · 2023-10-09 · $124
  • Meals for Qutenza · 2023-10-09 · $122
  • Honoraria for Qutenza · 2023-09-26 · $2,000
  • Travel for Qutenza · 2023-09-26 · $1,125
  • Travel for Qutenza · 2023-09-26 · $6
  • Meals for Qutenza · 2023-09-26 · $21
  • Travel for Qutenza · 2023-09-26 · $295
  • Travel for Qutenza · 2023-09-26 · $14
  • Travel for Qutenza · 2023-09-14 · $324
  • Meals for Qutenza · 2023-09-14 · $123
  • Honoraria for Qutenza · 2023-08-02 · $2,000
  • Travel for Qutenza · 2023-08-02 · $1,575
  • Travel for Qutenza · 2023-08-02 · $38
  • Travel for Qutenza · 2023-08-02 · $19
  • Travel for Qutenza · 2023-08-02 · $43
  • Travel for Qutenza · 2023-08-02 · $28
  • Travel for Qutenza · 2023-07-12 · $183
  • Travel for Qutenza · 2023-07-12 · $196
  • Travel for Qutenza · 2023-07-12 · $184
  • Meals for Qutenza · 2023-07-12 · $111
  • Honoraria for Qutenza · 2023-04-11 · $2,000

2022: $280

Payments by company in 2022
BioventusStimrouter Implantable Kit$170
3 payments
  • Meals for Stimrouter Implantable Kit · 2022-12-03 · $27
  • Meals for Stimrouter Implantable Kit · 2022-12-03 · $40
  • Meals for Stimrouter Implantable Kit · 2022-09-08 · $103
NevroOmnia$110
1 payment
  • Meals for Omnia · 2022-08-31 · $110

2019: $47

Payments by company in 2019
Boston ScientificGeneral - Pain Management$47
1 payment
  • Meals for General - Pain Management · 2019-10-23 · $47

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
74.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1073830477
Licence
CA A128155California A128155: Current · expires 2027-04-30
Trained
Geisel School of Medicine at Dartmouth, 2010 · 16 years ago
Group
University of California San Francisco · UCSF Medical Group Business Services · University Anesthesia Medical Group
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 208VP0014X (208VP0014X)
Mailing address
2255 Post St, San Francisco, CA, 94115
NPI first listed
2010-04-23
NPI last updated
2015-07-06

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