Internal Medicine · Stockton, CA
NPI
1245328004
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
4
Medicare group memberships
Hospitals
5
Hospital affiliations
3031 W March Ln Ste 101
Stockton, CA, 95219
Phone (209) 472-7100
Groups this clinician bills Medicare through
Medicare paid, 2024
$256K
2,936 services
Medicare patients, 2024
1,302
Average age 71
Drug cost, 2024
$3.2M
37,834 prescriptions
Company payments, 2025
$118
From 5 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Edmund C Yao was code 99308 (snf e&m), 806 times for 119 patients. In total Edmund C Yao billed 2,936 services in 22 codes, and Medicare paid $256K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2019-12-30.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99308 SNF E&M | Facility | 806 | 119 | $58.59 | $47K |
| 99223 Hospital E&M - Initial | Facility | 467 | 433 | $122.98 | $57K |
| 99213 Office E&M - Established | Office | 359 | 226 | $55.26 | $20K |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 347 | 347 | $131.64 | $46K |
| 99222 Hospital E&M - Initial | Facility | 246 | 231 | $96.17 | $24K |
| 99347 Home E&M - New and Established | Office | 230 | 87 | $27.32 | $6,283 |
| 99214 Office E&M - Established | Office | 87 | 82 | $74.17 | $6,453 |
| 99306 SNF E&M | Facility | 77 | 76 | $141.34 | $11K |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Facility | 65 | 65 | $131.27 | $8,533 |
| 99232 Hospital E&M - Subsequent | Facility | 54 | 30 | $61.77 | $3,336 |
| 99496 Chronic, Principal, and Transitional Care Management | Facility | 42 | 27 | $149.66 | $6,286 |
| 99233 Hospital E&M - Subsequent | Facility | 41 | 28 | $90.63 | $3,716 |
| 99496 Chronic, Principal, and Transitional Care Management | Office | 32 | 30 | $162.86 | $5,211 |
| G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | Office | 31 | 31 | $165.61 | $5,134 |
| 99239 Hospital Discharge Management | Facility | 21 | 21 | $90.41 | $1,899 |
By year: 2022 $190K for 2,450 services; 2023 $196K for 2,484 services; 2024 $256K for 2,936 services.
Medicare prescription drug claims, 2024
In 2024, the drug Edmund C Yao prescribed most often to Medicare patients was Levothyroxine Sodium, with 1,941 prescriptions and refills. In total Edmund C Yao wrote 37,834 Medicare prescriptions that cost $3.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 1,941 | 2,518 | 246 | $20K |
| Atorvastatin Calcium Generic | 1,921 | 3,090 | 355 | $17K |
| Losartan Potassium Generic | 1,316 | 2,267 | 238 | $11K |
| Amlodipine Besylate Generic | 1,261 | 2,256 | 268 | $6,717 |
| Omeprazole Generic | 1,150 | 1,423 | 149 | $7,788 |
| Pantoprazole Sodium Generic | 983 | 1,292 | 137 | $9,979 |
| Metformin Hcl Generic | 874 | 1,379 | 149 | $6,138 |
| Tamsulosin Hcl Generic | 692 | 928 | 101 | $7,567 |
| Gabapentin Generic | 639 | 819 | 107 | $10K |
| Simvastatin Generic | 609 | 888 | 92 | $4,412 |
| Lisinopril Generic | 603 | 1,015 | 115 | $5,317 |
| Metoprolol Tartrate Generic | 578 | 800 | 95 | $3,649 |
| Furosemide Generic | 556 | 638 | 89 | $3,022 |
| Levetiracetam Generic | 472 | 500 | 52 | $13K |
| Divalproex Sodium Generic | 464 | 467 | 44 | $22K |
Brand drugs: 5,755 claims; generic drugs: 31,487 claims; opioid claims: 928.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Edmund C Yao $118 ($118 in general payments such as food, travel and fees) from 5 companies. The largest payer was Bayer Healthcare Pharmaceuticals Inc. with $61.44.
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.