Internal Medicine, Endocrinology, Diabetes, & Metabolism · Stanford, CA
NPI
1619330222
Since 2016
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
2
Medicare group memberships
Hospitals
3
Hospital affiliations
300 Pasteur Dr
Stanford, CA, 94305
Phone (650) 723-4000
Groups this clinician bills Medicare through
Medicare paid, 2024
$47K
555 services
Medicare patients, 2024
218
Average age 69
Drug cost, 2024
$701K
1,462 prescriptions
Company payments, 2025
$0
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Julia J Chang was code 99214 (office e&m - established), 103 times for 80 patients. In total Julia J Chang billed 555 services in 17 codes, and Medicare paid $47K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-04-16.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 103 | 80 | $111.20 | $11K |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 99 | 80 | $14.53 | $1,438 |
| 99215 Office E&M - Established | Office | 72 | 57 | $145.16 | $10K |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Facility | 45 | 40 | $14.28 | $643 |
| 99215 Office E&M - Established | Facility | 43 | 33 | $116.96 | $5,029 |
| 99232 Hospital E&M - Subsequent | Facility | 39 | 21 | $70.62 | $2,754 |
| 99214 Office E&M - Established | Facility | 35 | 31 | $75.26 | $2,634 |
| 99233 Hospital E&M - Subsequent | Facility | 28 | 13 | $106.26 | $2,975 |
| 99222 Hospital E&M - Initial | Facility | 25 | 23 | $115.56 | $2,889 |
| 99213 Office E&M - Established | Office | 15 | 14 | $88.53 | $1,328 |
By year: 2022 $28K for 287 services; 2023 $34K for 386 services; 2024 $47K for 555 services.
Medicare prescription drug claims, 2024
In 2024, the drug Julia J Chang prescribed most often to Medicare patients was Levothyroxine Sodium, with 251 prescriptions and refills. In total Julia J Chang wrote 1,462 Medicare prescriptions that cost $701K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 251 | 699 | 73 | $3,666 |
| Hydrocortisone Generic | 159 | 350 | 48 | $9,873 |
| Testosterone Generic | 85 | 147 | 24 | $25K |
| Mounjaro Tirzepatide | 65 | 75 | Under 11 | $71K |
| Metformin Hcl Generic | 56 | 159 | 19 | $579 |
| Jardiance Empagliflozin | 50 | 109 | 15 | $57K |
| Ozempic Semaglutide | 48 | 91 | Under 11 | $85K |
| Cabergoline Generic | 48 | 116 | 13 | $6,888 |
| Testosterone Cypionate Generic | 45 | 69 | 14 | $2,212 |
| Prednisone Generic | 44 | 90 | 14 | $332 |
| Desmopressin Acetate Generic | 44 | 118 | 15 | $6,993 |
| Alendronate Sodium Generic | 35 | 96 | Under 11 | $255 |
| Nutropin Aq Nuspin Somatropin | 29 | 35 | Under 11 | $57K |
| Norditropin Flexpro Somatropin | 28 | 42 | Under 11 | $75K |
| Synthroid Levothyroxine Sodium | 24 | 70 | Under 11 | $989 |
Brand drugs: 582 claims; generic drugs: 844 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Julia J Chang $0 (- in general payments such as food, travel and fees) from 1 company.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.