Internal Medicine · Northridge, CA
NPI
1376647651
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
3
Hospital affiliations
17075 Devonshire, #100a
Northridge, CA, 91325
Phone (818) 831-7767
Groups this clinician bills Medicare through
Medicare paid, 2024
$275K
2,925 services
Medicare patients, 2024
284
Average age 76
Drug cost, 2024
$1.4M
11,746 prescriptions
Company payments, 2025
$1,174
From 19 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by William Y Josephson was code 99214 (office e&m - established), 957 times for 205 patients. In total William Y Josephson billed 2,925 services in 50 codes, and Medicare paid $275K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2014-01-06.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 957 | 205 | $104.51 | $100K |
| 99233 Hospital E&M - Subsequent | Facility | 330 | 61 | $101.07 | $33K |
| 99442 Telephone Services | Office | 291 | 130 | $78.39 | $23K |
| 99308 SNF E&M | Facility | 127 | 27 | $63.62 | $8,079 |
| 99239 Hospital Discharge Management | Facility | 93 | 68 | $98.72 | $9,181 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 92 | 92 | $145.70 | $13K |
| 99223 Hospital E&M - Initial | Facility | 87 | 63 | $147.84 | $13K |
| 99309 SNF E&M | Facility | 85 | 31 | $92.28 | $7,844 |
| 99443 Telephone Services | Office | 70 | 46 | $112.70 | $7,889 |
| 99213 Office E&M - Established | Office | 60 | 55 | $73.34 | $4,400 |
| 96372 Injection Administration | Office | 56 | 22 | $12.56 | $703 |
| 99306 SNF E&M | Facility | 54 | 41 | $157.07 | $8,482 |
| G0008 Administration of influenza virus vaccine | Office | 42 | 42 | $35.02 | $1,471 |
| J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Office | 41 | 15 | $0.94 | $38.47 |
| 90653 Vaccine Product | Office | 40 | 40 | $81.82 | $3,273 |
By year: 2022 $298K for 3,265 services; 2023 $287K for 3,014 services; 2024 $275K for 2,925 services.
Medicare prescription drug claims, 2024
In 2024, the drug William Y Josephson prescribed most often to Medicare patients was Atorvastatin Calcium, with 626 prescriptions and refills. In total William Y Josephson wrote 11,746 Medicare prescriptions that cost $1.4M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 626 | 962 | 105 | $7,316 |
| Levothyroxine Sodium Generic | 537 | 814 | 86 | $6,312 |
| Metformin Hcl Generic | 430 | 733 | 82 | $3,827 |
| Amlodipine Besylate Generic | 342 | 582 | 62 | $2,517 |
| Losartan Potassium Generic | 339 | 587 | 70 | $2,843 |
| Pantoprazole Sodium Generic | 240 | 366 | 54 | $3,573 |
| Gabapentin Generic | 239 | 379 | 55 | $4,281 |
| Rosuvastatin Calcium Generic | 220 | 407 | 47 | $3,779 |
| Metoprolol Succinate Generic | 217 | 424 | 50 | $2,403 |
| Eliquis Apixaban | 202 | 253 | 35 | $118K |
| Furosemide Generic | 192 | 288 | 41 | $973 |
| Omeprazole Generic | 192 | 341 | 44 | $1,601 |
| Tamsulosin Hcl Generic | 185 | 316 | 40 | $2,614 |
| Fenofibrate Fenofibrate Nanocrystallized | 161 | 205 | 22 | $5,506 |
| Metoprolol Tartrate Generic | 149 | 203 | 29 | $1,663 |
Brand drugs: 2,080 claims; generic drugs: 9,559 claims; opioid claims: 160.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid William Y Josephson $1,174 ($1,174 in general payments such as food, travel and fees) from 19 companies. The largest payer was ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) with $162.
| Company | Payments | Amount |
|---|---|---|
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) JNJ | 2 | $162 |
| Amgen Inc. AMGN | 6 | $144 |
| Neurocrine BioSciences, Inc. NBIX | 2 | $135 |
| Exact Sciences Corporation EXAS | 1 | $122 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 4 | $113 |
| Teva Pharmaceuticals USA, Inc. TEVA | 4 | $112 |
| Abbott Laboratories ABT | 3 | $73.55 |
| Aimmune Therapeutics, Inc. | 2 | $57.5 |
| Pfizer Inc. PFE | 2 | $40.95 |
| Abbvie Inc. ABBV | 1 | $34.42 |
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.