Doctor profile · Federal record
Dr. Jonathan Rosaasen, M.D.
Family Medicine Physician (CMS: Family Practice) · Thousand Oaks, CA
- NPI 1528171352
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
187 E Wilbur RD # 100
Thousand Oaks, CA 913605572
(805) 492-1015
fax (805) 492-2035 - Additional location
-
301 Science Dr, Suite #190
Moorpark, CA 930212094
(805) 531-9400
fax (805) 531-9499 - Additional location
-
430 E Avenida de Los Arboles Ste 204
Thousand Oaks, CA 913603017
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 7, 2023
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #A85781
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528171352. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,161
Distinct HCPCS
10
Medicare allowed
$83,060
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 384 | 135 | $97 | |
36415 |
Insertion of needle into vein for collection of blood sample | 208 | 113 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 191 | 103 | $135 | |
96372 |
Injection of drug or substance under skin or into muscle | 135 | 16 | $15 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 66 | 66 | $137 | |
G0008 |
Administration of influenza virus vaccine | 43 | 42 | $25 | |
90662 |
Influenza vaccine split virus, preservative free | 40 | 40 | $70 | |
J3420 |
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 28 | 12 | $1 | |
90480 |
Admn sarscov2 vacc 1 dose | 17 | 17 | $43 | |
91320 |
Sarscv2 vac 30mcg trs-suc im | 17 | 17 | $128 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 203. This provider delivers 5.7× the peer median.Open Payments
Industry payments received
All-time total
$1,611
Transactions
94
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 36 | $507.13 | |
| Novo Nordisk Inc | 15 | $245.73 | |
| PFIZER INC. | 9 | $199.29 | |
| Lilly USA, LLC | 13 | $152.22 | |
| Cleerly, Inc. | 1 | $79.28 | |
| AstraZeneca Pharmaceuticals LP | 3 | $68.88 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 3 | $63.71 | |
| Abbott Laboratories | 3 | $57.21 | |
| Bausch Health US, LLC | 3 | $52.54 | |
| Amgen Inc. | 2 | $51.85 | |
| Novartis Pharmaceuticals Corporation | 2 | $45.91 | |
| Organon Llc | 1 | $23.19 | |
| Bayer Healthcare Pharmaceuticals Inc. | 1 | $21.66 | |
| Currax Pharmaceuticals LLC | 1 | $14.58 | |
| SHIELD THERAPEUTICS INC | 1 | $13.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
706
Patients
183
Total drug cost
$11,426
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Alprazolam | Generic | 104 | 19 | $1,082 |
| Atorvastatin Calcium | Generic | 97 | 29 | $1,229 |
| Levothyroxine Sodium | Generic | 62 | 16 | $734 |
| Zolpidem Tartrate | Generic | 49 | 11 | $447 |
| Lisinopril | Generic | 43 | 16 | $650 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 41 | 16 | $826 |
| Metformin Hcl | Generic | 41 | 13 | $415 |
| Tamsulosin Hcl | Generic | 41 | 14 | $923 |
| Losartan Potassium | Generic | 38 | 12 | $432 |
| Oxycodone Hcl | Generic | 36 | 0 | $2,509 |
Frequently asked questions
What is Dr. Jonathan Rosaasen's medical specialty?
Dr. Jonathan Rosaasen practices Family Medicine Physician in Thousand Oaks, CA.
Where does Dr. Jonathan Rosaasen practice?
Dr. Jonathan Rosaasen practices at 187 E Wilbur RD # 100, Thousand Oaks, CA 913605572. Office phone: 8054921015.
What is Dr. Jonathan Rosaasen's NPI?
Dr. Jonathan Rosaasen's National Provider Identifier (NPI) is 1528171352, issued by NPPES.
Does Dr. Jonathan Rosaasen accept Medicare assignment?
Yes. Dr. Jonathan Rosaasen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Rosaasen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.