Internal Medicine, Endocrinology, Diabetes, & Metabolism · Duarte, CA
NPI
1740675610
Since 2015
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
1500 Duarte Rd Dept
Duarte, CA, 91010
Phone (626) 256-4673
Groups this clinician bills Medicare through
Medicare paid, 2024
$97K
1,465 services
Medicare patients, 2024
503
Average age 72
Drug cost, 2024
$1.1M
2,919 prescriptions
Company payments, 2025
$1,759
From 9 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Maria M Chang Villacreses was code 99214 (office e&m - established), 436 times for 290 patients. In total Maria M Chang Villacreses billed 1,465 services in 18 codes, and Medicare paid $97K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2020-11-20.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Facility | 436 | 290 | $77.60 | $34K |
| 99232 Hospital E&M - Subsequent | Facility | 276 | 81 | $67.22 | $19K |
| 99214 Office E&M - Established | Office | 125 | 80 | $94.35 | $12K |
| 99215 Office E&M - Established | Facility | 49 | 43 | $120.22 | $5,891 |
| 99222 Hospital E&M - Initial | Facility | 44 | 44 | $111.06 | $4,887 |
| 95251 Test - Miscellaneous | Facility | 36 | 30 | $29.90 | $1,076 |
| 99205 Office E&M - New | Facility | 31 | 31 | $155.21 | $4,811 |
| 99231 Hospital E&M - Subsequent | Facility | 25 | 20 | $42.16 | $1,054 |
| 99205 Office E&M - New | Office | 15 | 15 | $178.97 | $2,685 |
| 99213 Office E&M - Established | Facility | 13 | 13 | $56.55 | $735 |
By year: 2022 $92K for 1,199 services; 2023 $90K for 1,216 services; 2024 $97K for 1,465 services.
Medicare prescription drug claims, 2024
In 2024, the drug Maria M Chang Villacreses prescribed most often to Medicare patients was Levothyroxine Sodium, with 334 prescriptions and refills. In total Maria M Chang Villacreses wrote 2,919 Medicare prescriptions that cost $1.1M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 334 | 885 | 93 | $3,949 |
| Metformin Hcl Generic | 188 | 448 | 53 | $1,521 |
| Rosuvastatin Calcium Generic | 163 | 450 | 53 | $3,835 |
| Atorvastatin Calcium Generic | 140 | 378 | 44 | $1,289 |
| Ozempic Semaglutide | 127 | 173 | 24 | $146K |
| Metformin Hcl Er Metformin Hcl | 104 | 282 | 37 | $1,374 |
| Mounjaro Tirzepatide | 86 | 117 | 26 | $118K |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 77 | 185 | 28 | $7,881 |
| Synthroid Levothyroxine Sodium | 68 | 173 | 18 | $7,206 |
| Pioglitazone Hcl Generic | 62 | 168 | 21 | $747 |
| Losartan Potassium Generic | 61 | 179 | 22 | $743 |
| Jardiance Empagliflozin | 61 | 129 | 17 | $72K |
| Januvia Sitagliptin Phosphate | 58 | 68 | Under 11 | $33K |
| Farxiga Dapagliflozin Propanediol | 58 | 100 | 13 | $52K |
| Alendronate Sodium Generic | 58 | 138 | 19 | $671 |
Brand drugs: 1,175 claims; generic drugs: 1,592 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Maria M Chang Villacreses $1,759 ($1,759 in general payments such as food, travel and fees) from 9 companies. The largest payer was Abbott Laboratories with $493.
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.