Skip to main content
UniHealth

Doctor search

Annie Chang, MD

Family Practice · San Jose

NPI 1396191995

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
4
1 carrier
Office
1

Offices

1 location · County of Santa Clara · 1,000 clinicians in this group

Looking this up.

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) 885-5000 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
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026

California Medical Board record

Licence A153415 · Current

Licensed to practise in California · since 2018 · expires 2028-01-31 · University of California San Francisco School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Medicaid work

$458,371 in 2024

Medicaid paid $458,371 for 8,260 billed services this clinician did in 2024, up to 122 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 2024
Clinic visit/encounter, all-inclusive1,376$457,327
Short return visit (20+ min)1,295$671
Return visit (30+ min)714$373
Pain severity quantified; pain present (COA) (ONC)275$0
Pain severity quantified; no pain present (COA) (ONC)313$0
Medication list documented in medical record (COA)772$0
Review of all medications by a prescribing practitioner or clinical pharmacist (such as, prescriptions, OTCs, herbal therapies and supplements) documented in the medical record (COA)72$0
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)836$0
Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD)360$0
Most recent systolic blood pressure greater than or equal to 140 mm Hg (HTN, CKD, CAD) (DM)511$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)646$0
Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM)527$0
Medicaid work by year
20248,26014122$458,371
20234,05511130$373,864
20224,03210121$332,253
20214,61610110$495,442
20202,9944123$361,509
2019635493$53,087
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Clinic visit/encounter, all-inclusive1,185$373,234
Short return visit (20+ min)1,864$620
Smoking and tobacco use cessation counseling visit; intermediate, greater than 3 minutes up to 10 minutes21$10
Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM)207$0
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)190$0
Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD)62$0
Most recent systolic blood pressure greater than or equal to 140 mm Hg (HTN, CKD, CAD) (DM)126$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)139$0
Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM)113$0
Most recent diastolic blood pressure greater than or equal to 90 mm Hg (HTN, CKD, CAD) (DM)126$0
Return visit (30+ min)22$0

2022

Largest Medicaid services in 2022
Clinic visit/encounter, all-inclusive1,039$329,138
Short return visit (20+ min)1,738$3,104
Glucose, blood by glucose monitoring device(s) cleared by the FDA specifically for home use48$10
Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM)256$0
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)217$0
Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD)86$0
Most recent systolic blood pressure greater than or equal to 140 mm Hg (HTN, CKD, CAD) (DM)158$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)175$0
Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM)187$0
Most recent diastolic blood pressure greater than or equal to 90 mm Hg (HTN, CKD, CAD) (DM)128$0

2021

Largest Medicaid services in 2021
Clinic visit/encounter, all-inclusive1,470$493,814
Short return visit (20+ min)2,331$1,628
Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM)179$0
Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD)149$0
Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD)60$0
Most recent systolic blood pressure greater than or equal to 140 mm Hg (HTN, CKD, CAD) (DM)106$0
Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM)126$0
Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM)112$0
Most recent diastolic blood pressure greater than or equal to 90 mm Hg (HTN, CKD, CAD) (DM)59$0
Blood glucose (sugar) level24$0

2020

Largest Medicaid services in 2020
Clinic visit/encounter, all-inclusive1,205$360,471
Short return visit (20+ min)1,722$747
Payment for communication technology-based services for 5 minutes or more of a virtual (non-face-to-face) communication between an rural health clinic (rhc) or federally qualified health center (fqhc) practitioner and rhc or fqhc patient, or 5 minutes or more of remote evaluation of recorded video and/or images by an rhc or fqhc practitioner, occurring in lieu of an office visit; rhc or fqhc only30$291
Telephone evaluation and management service by a physician or other qualified health care professional who may report evaluation and management services provided to an established patient, parent, or guardian not originating from a related E/M service provided within the previous 7 days nor leading to an E/M service or procedure within the next 24 hours or soonest available appointment; 21-30 minutes of medical discussion37$0

2019

Largest Medicaid services in 2019
Clinic visit/encounter, all-inclusive176$52,798
Short return visit (20+ min)414$281
Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid)26$4
Blood glucose (sugar) level19$3

Drugs they prescribed that Part D paid

$168,389

Pharmacies billed $168,389 in 2024.

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

Opioids were 5% of their Part D prescriptions (51 of 1,017) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%. Long-acting opioids: 61% of their opioid prescriptions.

782 generic and fewer than 11 brand-name prescriptions · $168,389 in drug cost · 12 antibiotic prescriptions.

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
Ozempic21$20,698$986
Mounjaro14$14,207$1,015
Trulicity16$13,841$865
Jardiance20$12,714$636
Eliquis11$10,244$931
See all 27 drugs
Every Part D drug this clinician prescribed
Ozempic21$20,698$986
Mounjaro14$14,207$1,015
Trulicity16$13,841$865
Jardiance20$12,714$636
Eliquis11$10,244$931
Buprenorphine-Naloxone41$8,352$204
Synjardy Xr11$5,915$538
Buprenorphine12$2,388$199
Gabapentin54$619$11
Albuterol Sulfate Hfa15$522$35
Atorvastatin69$304$4
Amiodarone12$252$21
Pregabalin23$171$7
Morphine Sulfate Er13$156$12
Metoprolol23$118$5
Fluticasone Propionate17$117$7
Tamsulosin21$110$5
Amlodipine Besylate41$75$2
Metformin18$65$4
Lisinopril31$52$2
Triamcinolone Acetonide12$49$4
Sertraline15$39$3
Hydrocodone-Acetaminophen11$31$3
Ibuprofen15$25$2
Allopurinol11$23$2
Losartan11$22$2
Cyclobenzaprine12$16$1

Year by year

Part D prescribing by year
20241,0171075% (51)None$168,389
20238911168% (72)None$142,591
2022716976% (41)None$114,959
20216601093% (22)None$54,755
20207651154% (27)None$67,743
2019415785% (22)None$29,048
2018346580% (0)None$23,983
2017441520% (0)None$53,238
201698140% (0)None$5,375

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

See the drugs prescribed each year

2023: 25 drugs

Part D drugs prescribed in 2023
Xifaxan12$36,456$3,038
Belbuca12$11,554$963
Trulicity11$10,517$956
Synjardy Xr15$9,156$610
Jardiance11$6,370$579
Naloxone23$1,943$84
Atorvastatin84$1,000$12
Albuterol Sulfate Hfa19$831$44
Levetiracetam14$747$53
Pregabalin25$700$28
Lisinopril34$455$13
Oxycodone25$454$18
Gabapentin25$395$16
Amlodipine Besylate44$247$6
Levothyroxine13$225$17
Trazodone20$211$11
Metoprolol32$167$5
Isosorbide Mononitrate Er14$154$11
Ibuprofen23$143$6
Omeprazole13$136$10
Metformin12$122$10
Cyclobenzaprine13$121$9
Bupropion Xl14$113$8
Morphine Sulfate Er13$79$6
Hydrochlorothiazide18$33$2

2022: 17 drugs

Part D drugs prescribed in 2022
Xarelto15$11,112$741
Synjardy Xr20$10,389$519
Naloxone16$1,545$97
Albuterol Sulfate Hfa11$492$45
Atorvastatin51$425$8
Oxycodone19$334$18
Tamsulosin14$253$18
Omeprazole18$200$11
Amlodipine Besylate41$169$4
Cyclobenzaprine12$165$14
Metoprolol18$124$7
Pantoprazole12$117$10
Famotidine11$114$10
Isosorbide Mononitrate Er11$103$9
Lisinopril12$90$7
Metformin14$48$3
Hydrochlorothiazide11$44$4

2021: 18 drugs

Part D drugs prescribed in 2021
Narcan14$1,707$122
Albuterol Sulfate Hfa15$681$45
Baclofen21$512$24
Atorvastatin52$366$7
Levothyroxine12$130$11
Pantoprazole14$125$9
Tamsulosin17$114$7
Allopurinol11$111$10
Gabapentin19$107$6
Metoprolol11$102$9
Amlodipine Besylate30$96$3
Finasteride11$87$8
Losartan16$82$5
Metformin20$60$3
Furosemide13$59$5
Ibuprofen11$53$5
Lisinopril22$52$2
Sertraline11$45$4

2020: 18 drugs

Part D drugs prescribed in 2020
Buprenorphine-Naloxone12$1,880$157
Ventolin Hfa19$1,051$55
Albuterol Sulfate Hfa18$841$47
Gabapentin23$316$14
Atorvastatin50$264$5
Metoprolol18$227$13
Baclofen14$222$16
Levothyroxine14$176$13
Pravastatin17$170$10
Losartan19$145$8
Fluticasone Propionate11$116$11
Lisinopril38$95$3
Furosemide30$79$3
Omeprazole15$78$5
Metformin17$59$3
Paroxetine13$56$4
Amitriptyline11$56$5
Amlodipine Besylate20$53$3

2019: 6 drugs

Part D drugs prescribed in 2019
Atorvastatin23$446$19
Gabapentin20$323$16
Lisinopril26$179$7
Losartan18$150$8
Omeprazole17$147$9
Amlodipine Besylate13$64$5

2018: 8 drugs

Part D drugs prescribed in 2018
Atorvastatin23$535$23
Gabapentin12$241$20
Losartan17$160$9
Amlodipine Besylate14$149$11
Omeprazole18$144$8
Metformin26$109$4
Atenolol13$87$7
Lisinopril19$69$4

2017: 10 drugs

Part D drugs prescribed in 2017
Lantus Solostar17$5,343$314
Gabapentin17$323$19
Atorvastatin20$283$14
Spironolactone14$137$10
Lisinopril37$99$3
Pantoprazole12$92$8
Metformin25$73$3
Furosemide21$62$3
Carvedilol12$44$4
Atenolol13$29$2

Money from drug and device companies

$16 in 2025

Industry payments by year
202511None$16
201911None$116

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
Mallinckrodt Hospital ProductsActhar$16
1 payment
  • Meals for Acthar · 2025-03-24 · $16
See the published payment
Every published payment
Mallinckrodt Hospital ProductsMeals · 2025-03-24Acthar$16
See earlier years (2019)

2019: $116

Payments by company in 2019
ViiV HealthcareDovato$116
1 payment
  • Meals for Dovato · 2019-05-15 · $116

Professional record

NPI
1396191995
Licence
CA A153415California A153415: Current · expires 2028-01-31
Trained
University of California, San Francisco School of Medicine, 2015
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Family medicine (207Q00000X); Student in a training program (390200000X)
Mailing address
3291 Loma Vista Rd, Ventura, CA, 93003
NPI first listed
2016-05-12
NPI last updated
2019-05-03

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