David Chao, MD
Internal Medicine · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 4
- 1 carrier
- Office
- 1
Offices
1 location · Permanente Medical Group Inc · 10,928 clinicians in this group
Plans that list them
4 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chao’s office at (408) 972-3000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Kaiser Permanente Dual Complete North P2 (HMO D-SNP) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Dual Complete North P23 (HMO D-SNP) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Sr Adv Basic Santa Clara (HMO) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO) | Kaiser Permanente | Listed | Sep 1, 2026 |
California Medical Board record
Licence A130162 · Current
Licensed to practise in California · since 2014 · expires 2028-05-31 · Michigan State University College of Human Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Procedures Medicare counted
| Colonoscopy | 1-10 | None |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 | None |
Year by year
| 2023 | 14 | 21 | 68 | 1.64 | $25,652 | $4,414 |
| 2022 | 11 | 17 | 67 | 2.07 | $18,487 | $3,616 |
| 2016 | 84 | 169 | 73 | 2.10 | $32,680 | $15,273 |
| 2015 | 28 | 61 | 72 | 1.99 | $10,650 | $4,988 |
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
2016: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 26 | $3,162 | $62 |
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 12 | $3,037 | $89 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 15 | $2,608 | $174 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 20 | $2,344 | $117 |
| Hospital discharge day management, more than 30 minutes | 24 | $2,244 | $93 |
Drugs they prescribed that Part D paid
$299,961
Pharmacies billed $299,961 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 0% of their Part D prescriptions (0 of 521) in 2024. At or below the middle of the specialty; the typical internal medicine clinician is at 1%.
441 generic and 80 brand-name prescriptions · $299,961 in drug cost · 44 antibiotic prescriptions to 22 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.
| Creon | 12 | $97,443 | $8,120 |
| Xifaxan | 18 | $50,763 | $2,820 |
| Mesalamine | 17 | $6,849 | $403 |
| Gavilyte-C | 216 | $4,856 | $22 |
| Budesonide Dr | 31 | $3,530 | $114 |
See all 9 drugs
| Creon | 12 | $97,443 | $8,120 |
| Xifaxan | 18 | $50,763 | $2,820 |
| Mesalamine | 17 | $6,849 | $403 |
| Gavilyte-C | 216 | $4,856 | $22 |
| Budesonide Dr | 31 | $3,530 | $114 |
| Cholestyramine | 20 | $941 | $47 |
| Omeprazole | 48 | $424 | $9 |
| Spironolactone | 12 | $340 | $28 |
| Peg-3350 and Electrolytes | 13 | $335 | $26 |
Year by year
| 2024 | 521 | 316 | 0% (0) | 15% | $299,961 |
| 2023 | 448 | 302 | None | 17% | $108,048 |
| 2022 | 409 | 263 | 0% (0) | 25% | $93,922 |
| 2021 | 379 | 255 | 0% (0) | 22% | $85,060 |
| 2020 | 189 | 125 | 0% (0) | 26% | $29,446 |
| 2019 | 70 | 39 | 0% (0) | 23% | $15,304 |
| 2018 | 99 | 43 | 0% (0) | 37% | $101,168 |
| 2017 | 82 | 30 | None | None | $20,942 |
| 2016 | 140 | 33 | 0% (0) | 9% | $5,642 |
| 2015 | 80 | 26 | 0% (0) | 14% | $6,393 |
| 2014 | 78 | 14 | None | None | $5,055 |
| 2013 | 80 | 17 | None | None | $2,753 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 7 drugs
| Creon | 11 | $44,460 | $4,042 |
| Gavilyte-C | 211 | $4,394 | $21 |
| Budesonide Dr | 22 | $2,497 | $114 |
| Ursodiol | 14 | $2,461 | $176 |
| Peg-3350 and Electrolytes | 33 | $833 | $25 |
| Cholestyramine | 11 | $421 | $38 |
| Omeprazole | 41 | $367 | $9 |
2022: 10 drugs
| Creon | 11 | $28,824 | $2,620 |
| Lialda | 13 | $8,796 | $677 |
| Ursodiol | 14 | $3,195 | $228 |
| Gavilyte-C | 146 | $2,473 | $17 |
| Budesonide Dr | 13 | $1,491 | $115 |
| Peg-3350 and Electrolytes | 45 | $915 | $20 |
| Tenofovir Disoproxil | 12 | $681 | $57 |
| Cholestyramine | 12 | $460 | $38 |
| Omeprazole | 27 | $206 | $8 |
| Metronidazole | 13 | $136 | $10 |
2021: 5 drugs
| Xifaxan | 12 | $21,999 | $1,833 |
| Peg-3350 and Electrolytes | 122 | $2,524 | $21 |
| Gavilyte-C | 80 | $1,201 | $15 |
| Omeprazole | 24 | $333 | $14 |
| Spironolactone | 11 | $291 | $26 |
2020: 3 drugs
| Gavilyte-C | 63 | $1,159 | $18 |
| Peg-3350 and Electrolytes | 21 | $463 | $22 |
| Omeprazole | 14 | $184 | $13 |
2019: 1 drug
| Gavilyte-C | 19 | $673 | $35 |
2018: 1 drug
| Pantoprazole | 13 | $306 | $24 |
2017: 1 drug
| Azathioprine | 14 | $835 | $60 |
2016: 1 drug
| Atorvastatin | 15 | $136 | $9 |
2014: 1 drug
| Metformin | 12 | $88 | $7 |
Money from drug and device companies
$125 in 2019
A payment is not proof that care is biased.
| Salix Pharmaceuticals a division of Bausch Health US | Xifaxan | $125 | 1 payment
|
See the published payment
| Salix Pharmaceuticals a division of Bausch Health US | Meals · 2019-06-27 | Xifaxan | $125 |
Professional record
- NPI
- 1720371073
- Licence
- CA A130162California A130162: Current · expires 2028-05-31
- Trained
- Michigan State University College of Human Medicine, 2010
- Video visits
- Lists video visits
- Gender
- Male
More record details
- Sole proprietor
- Yes
- Taxonomy
- Internal medicine (207R00000X)
- Mailing address
- 2333 Mowry Ave 300, Fremont, CA, 94538
- NPI first listed
- 2011-05-19
- NPI last updated
- 2022-02-11
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.