Helena Chih-Hua Chang, MD
Urology · Santa Clara
- 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. Chang’s office at (408) 851-1000 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 |
State licence records
1 licence
- Washington MD.MD.60751346Physician And Surgeon License · since 2017 · expires 2020-06-09ExpiredNo board action on this licenceCheck it with the state
We check Colorado, Delaware, Florida, Illinois, Maryland, New Jersey, New York, Tennessee, Texas, Virginia, Washington, plus California above. A state that is not in this list has not been checked, which is not the same as clear.
Drugs they prescribed that Part D paid
$57,205
Pharmacies billed $57,205 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 3% of their Part D prescriptions (19 of 739) in 2024. Above the middle of the specialty; the typical urology clinician is at 2%.
698 generic and 41 brand-name prescriptions · $57,205 in drug cost · 129 antibiotic prescriptions to 94 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.
| Myrbetriq | 23 | $22,738 | $989 |
| Tamsulosin | 222 | $3,769 | $17 |
| Renacidin | 15 | $3,162 | $211 |
| Trospium Chloride | 36 | $1,991 | $55 |
| Finasteride | 118 | $1,894 | $16 |
See all 16 drugs
| Myrbetriq | 23 | $22,738 | $989 |
| Tamsulosin | 222 | $3,769 | $17 |
| Renacidin | 15 | $3,162 | $211 |
| Trospium Chloride | 36 | $1,991 | $55 |
| Finasteride | 118 | $1,894 | $16 |
| Methenamine Hippurate | 17 | $1,712 | $101 |
| Potassium Citrate Er | 16 | $1,346 | $84 |
| Terazosin | 17 | $716 | $42 |
| Cefpodoxime Proxetil | 21 | $607 | $29 |
| Ibuprofen | 46 | $448 | $10 |
| Cefadroxil | 12 | $313 | $26 |
| Ciprofloxacin | 33 | $261 | $8 |
| Nabumetone | 16 | $217 | $14 |
| Sulfamethoxazole-Trimethoprim | 27 | $183 | $7 |
| Nitrofurantoin Mono-Macro | 20 | $172 | $9 |
| Oxycodone | 19 | $109 | $6 |
Year by year
| 2024 | 739 | 295 | 3% (19) | 6% | $57,205 |
| 2023 | 737 | 270 | 2% (14) | 7% | $65,623 |
| 2022 | 605 | 262 | 2% (12) | 5% | $40,990 |
| 2021 | 545 | 224 | None | 6% | $44,354 |
| 2020 | 567 | 264 | None | 5% | $37,930 |
| 2019 | 559 | 271 | 4% (22) | 7% | $27,971 |
| 2018 | 112 | 70 | 17% (19) | None | $2,397 |
| 2017 | 68 | 19 | 18% (12) | 16% | $3,938 |
| 2015 | 17 | 14 | None | 0% | $430 |
| 2014 | 43 | 21 | None | None | $1,774 |
| 2013 | 110 | 62 | None | 15% | $4,229 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 15 drugs
| Myrbetriq | 36 | $38,638 | $1,073 |
| Tamsulosin | 201 | $3,583 | $18 |
| Trospium Chloride Er | 13 | $2,679 | $206 |
| Methenamine Hippurate | 20 | $2,337 | $117 |
| Trospium Chloride | 40 | $1,929 | $48 |
| Finasteride | 116 | $1,722 | $15 |
| Potassium Citrate Er | 12 | $1,069 | $89 |
| Cefpodoxime Proxetil | 26 | $744 | $29 |
| Terazosin | 17 | $712 | $42 |
| Cefadroxil | 19 | $460 | $24 |
| Ibuprofen | 51 | $443 | $9 |
| Sulfamethoxazole-Trimethoprim | 49 | $326 | $7 |
| Ciprofloxacin | 42 | $301 | $7 |
| Amoxicillin | 17 | $164 | $10 |
| Oxycodone | 14 | $84 | $6 |
2022: 14 drugs
| Myrbetriq | 21 | $17,481 | $832 |
| Methenamine Hippurate | 22 | $2,888 | $131 |
| Tamsulosin | 147 | $2,853 | $19 |
| Finasteride | 90 | $1,389 | $15 |
| Trospium Chloride | 19 | $1,222 | $64 |
| Terazosin | 20 | $792 | $40 |
| Cefpodoxime Proxetil | 19 | $641 | $34 |
| Ciprofloxacin | 47 | $307 | $7 |
| Ibuprofen | 31 | $277 | $9 |
| Sulfamethoxazole-Trimethoprim | 38 | $250 | $7 |
| Cefadroxil | 20 | $246 | $12 |
| Oxybutynin Chloride | 13 | $210 | $16 |
| Amoxicillin | 23 | $196 | $9 |
| Oxycodone | 12 | $68 | $6 |
2021: 12 drugs
| Myrbetriq | 19 | $14,871 | $783 |
| Methenamine Hippurate | 12 | $2,998 | $250 |
| Tamsulosin | 145 | $2,943 | $20 |
| Finasteride | 94 | $1,561 | $17 |
| Trospium Chloride | 23 | $1,114 | $48 |
| Terazosin | 21 | $826 | $39 |
| Cefpodoxime Proxetil | 15 | $441 | $29 |
| Cefadroxil | 31 | $391 | $13 |
| Ibuprofen | 31 | $281 | $9 |
| Sulfamethoxazole-Trimethoprim | 40 | $261 | $7 |
| Ciprofloxacin | 23 | $167 | $7 |
| Amoxicillin | 11 | $95 | $9 |
2020: 10 drugs
| Methenamine Hippurate | 12 | $4,378 | $365 |
| Tamsulosin | 147 | $3,165 | $22 |
| Finasteride | 97 | $2,303 | $24 |
| Trospium Chloride | 22 | $1,417 | $64 |
| Terazosin | 21 | $618 | $29 |
| Amoxicillin-Clavulanate Potass | 26 | $483 | $19 |
| Ibuprofen | 35 | $292 | $8 |
| Sulfamethoxazole-Trimethoprim | 37 | $252 | $7 |
| Cefadroxil | 17 | $228 | $13 |
| Ciprofloxacin | 34 | $225 | $7 |
2019: 11 drugs
| Tamsulosin | 148 | $3,480 | $24 |
| Finasteride | 101 | $2,528 | $25 |
| Trospium Chloride | 27 | $1,891 | $70 |
| Amoxicillin-Clavulanate Potass | 27 | $496 | $18 |
| Nitrofurantoin Mono-Macro | 16 | $305 | $19 |
| Sulfamethoxazole-Trimethoprim | 34 | $228 | $7 |
| Ciprofloxacin | 34 | $228 | $7 |
| Ibuprofen | 23 | $184 | $8 |
| Bicalutamide | 15 | $159 | $11 |
| Cephalexin | 14 | $127 | $9 |
| Hydrocodone-Acetaminophen | 12 | $67 | $6 |
2018: 3 drugs
| Finasteride | 19 | $463 | $24 |
| Tamsulosin | 25 | $392 | $16 |
| Hydrocodone-Acetaminophen | 11 | $50 | $5 |
2017: 1 drug
| Tamsulosin | 23 | $218 | $9 |
2014: 2 drugs
| Oxybutynin Chloride | 13 | $574 | $44 |
| Terazosin | 11 | $172 | $16 |
2013: 4 drugs
| Oxybutynin Chloride | 11 | $470 | $43 |
| Finasteride | 13 | $290 | $22 |
| Terazosin | 13 | $171 | $13 |
| Ciprofloxacin | 34 | $101 | $3 |
Money from drug and device companies
$62 in 2025
| 2025 | 1 | 1 | None | $62 |
| 2020 | 2 | 2 | None | $286 |
| 2019 | 1 | 3 | None | $312 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Richard Wolf Medical Instruments | None | $62 | 1 payment
|
See the published payment
| Richard Wolf Medical Instruments | Meals · 2025-04-28 | None | $62 |
See earlier years (2020, 2019)
2020: $286
| Boston Scientific | General - Kidney Stone Disease | $168 | 1 payment
|
| Lumenis | None | $119 | 1 payment
|
2019: $312
| Boston Scientific | Therapies | $312 | 3 payments
|
Professional record
- NPI
- 1366731887
- Licence
- WA 60751346Washington MD.MD.60751346: Expired
- Trained
- University of Wisconsin School of Medicine, 2011
- Gender
- Female
More record details
- Sole proprietor
- No
- Medicaid ID
- WA 1366731887
- Taxonomy
- Urology (208800000X)
- Mailing address
- 700 Lawrence Expy, Santa Clara, CA, 95051
- NPI first listed
- 2011-04-05
- NPI last updated
- 2022-01-06
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: UCSF Department of Surgery, San Francisco, CA, 94143 · 1959 Ne Pacific Street Box 356510, Seattle, WA, 98195
This office lists an electronic records connection.