Mervyn Charles Chang, DDS
General Practice · San Jose
- Medicare standing
- 1 flag on the record
- Listed below.
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
On the public record
- Medicare does not list them as allowed to order and refer
Offices
1 location
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. Chang’s office at (408) 298-5959 to ask if they take your plan before you enroll.
California Medical Board record
Licence C18800 · Cancelled
Licence status: Cancelled · since 1957 · University of Texas Medical Branch at Galveston.
License has been voluntarily canceled, or the license has been expired for at least five years and has not been renewed. No practice is permitted.
Matched on the licence number without its letter prefix; check the name before relying on it.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Drugs they prescribed that Part D paid
$245
Pharmacies billed $245 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
31 generic and 0 brand-name prescriptions · $245 in drug cost · 23 antibiotic prescriptions to 16 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.
| Amoxicillin | 14 | $118 | $7 |
Year by year
| 2024 | 31 | 19 | None | 0% | $245 |
| 2023 | 24 | 14 | None | 0% | $225 |
| 2022 | 28 | 11 | None | 0% | $201 |
| 2021 | 43 | 19 | 26% (11) | None | $351 |
| 2020 | 39 | 16 | 28% (11) | None | $483 |
| 2019 | 29 | 18 | None | 0% | $636 |
| 2018 | 40 | 23 | None | 0% | $603 |
| 2017 | 30 | 19 | None | 0% | $372 |
| 2016 | 49 | 30 | None | 0% | $728 |
| 2015 | 55 | 22 | 22% (12) | 0% | $707 |
| 2014 | 38 | 19 | None | None | $483 |
| 2013 | 43 | 25 | 26% (11) | None | $573 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 1 drug
| Amoxicillin | 11 | $52 | $5 |
2022: 1 drug
| Amoxicillin | 14 | $96 | $7 |
2021: 2 drugs
| Amoxicillin | 17 | $87 | $5 |
| Hydrocodone-Acetaminophen | 11 | $54 | $5 |
2020: 1 drug
| Amoxicillin | 14 | $72 | $5 |
2019: 1 drug
| Amoxicillin | 11 | $58 | $5 |
2018: 1 drug
| Amoxicillin | 20 | $106 | $5 |
2017: 1 drug
| Amoxicillin | 16 | $100 | $6 |
2016: 1 drug
| Amoxicillin | 25 | $183 | $7 |
2015: 2 drugs
| Amoxicillin | 30 | $165 | $5 |
| Hydrocodone-Acetaminophen | 12 | $82 | $7 |
2014: 1 drug
| Amoxicillin | 19 | $113 | $6 |
2013: 2 drugs
| Amoxicillin | 22 | $138 | $6 |
| Hydrocodone-Acetaminophen | 11 | $45 | $4 |
Money from drug and device companies
$15 in 2025
| 2025 | 1 | 1 | None | $15 |
| 2024 | 1 | 1 | None | $31 |
| 2023 | 1 | 1 | None | $22 |
| 2022 | 1 | 1 | None | $25 |
| 2021 | 1 | 1 | None | $19 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Zimvie | Tsx Implants | $15 | 1 payment
|
See the published payment
| Zimvie | Meals · 2025-04-16 | Tsx Implants | $15 |
See earlier years (2024, 2023, 2022, 2021)
2024: $31
| Straumann USA | None | $31 | 1 payment
|
2023: $22
| Straumann USA | None | $22 | 1 payment
|
2022: $25
| Straumann USA | None | $25 | 1 payment
|
2021: $19
| OraPharma a division of Bausch Health US | Arestin | $19 | 1 payment
|
Professional record
- NPI
- 1275552374
- Licence
- CA 18800California C18800: Cancelled
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 1223G0001X (1223G0001X)
- Mailing address
- 2211 Moorpark Ave, #100, San Jose, CA, 95128
- NPI first listed
- 2006-07-19
- NPI last updated
- 2007-07-08
This is when the NPI record was last certified, not a medical board exam.