Doctor profile · Federal record
Dr. Isabella Chen, M.D.
Hematology & Oncology Physician (CMS: Internal Medicine) · Hematology (Internal Medicine) Physician · Medical Oncology Physician · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Ventura, CA
- NPI 1053621730
- Accepts Medicare
- MIPS 82.2 / 100 · 2023
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Hillmont Ave, Bldg 340, Ste 501
Ventura, CA 93003
(805) 652-6218
fax (805) 652-6512 - Mailing address
-
800 S Victoria Ave, L4615, Vchca - Physician Services
Ventura, CA 930090003
Credentials & registration
- NPI registered
- October 2010 — 16 yrs on file
- Profile last updated
- September 29, 2025
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #A118096
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053621730. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
621
Distinct HCPCS
4
Medicare allowed
$98,607
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 265 | 66 | $194 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 232 | 112 | $139 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 76 | 53 | $103 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 48 | 31 | $151 |
In context: peer comparison
Among 2 peers in Ventura Hematology & Oncology Physician, average services per provider: 118. This provider delivers 5.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
434
Patients
50
Total drug cost
$1,314,959
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 93 | 27 | $2,473 |
| Ibrance (Palbociclib) | Brand | 51 | 0 | $872,302 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 35 | 0 | $1,483 |
| Xarelto (Rivaroxaban) | Brand | 35 | 0 | $30,782 |
| Prochlorperazine Maleate | Generic | 29 | 12 | $620 |
| Alendronate Sodium | Generic | 28 | 0 | $409 |
| Ondansetron Hcl | Generic | 25 | 11 | $251 |
| Exemestane | Generic | 24 | 0 | $18,169 |
| Votrient (Pazopanib Hcl) | Brand | 20 | 0 | $129,477 |
| Loperamide (Loperamide Hcl) | Brand | 18 | 0 | $464 |
Frequently asked questions
What is Dr. Isabella Chen's medical specialty?
Dr. Isabella Chen practices Hematology & Oncology Physician in Ventura, CA.
Where does Dr. Isabella Chen practice?
Dr. Isabella Chen practices at 300 Hillmont Ave, Ventura, CA 93003. Office phone: 8056526218.
What is Dr. Isabella Chen's NPI?
Dr. Isabella Chen's National Provider Identifier (NPI) is 1053621730, issued by NPPES.
Does Dr. Isabella Chen accept Medicare assignment?
Yes. Dr. Isabella Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Isabella Chen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.