JOSEPH AN (D.O.) – Hematology & Oncology Physician, NPI 1144512450
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
326 HEMATOLOGY/ONCOLOGY in MD
Provider Addresses for JOSEPH AN (D.O.)
18847 KILLOCH WAY
NORTHRIDGE, CA 913261135
Phone: (818) 355-9798
Type: Mailing
4494 NORTH PALMER ROAD
BETHESDA, MD 208890140
Phone: (818) 355-9798
Type: Location
2005 BERINGER RD APT 103
SUFFOLK, VA 234350148
Phone: (818) 355-9798
Type: Mailing
620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 237082111
Phone: (757) 953-1043
Fax: (757) 953-1036
Type: Location
4494 North Palmer Road
Bethesda, MD 208890140
Phone: (818) 355-9798
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $21.
Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.
Last reported payment date: 2023-02-21 • Largest payer in this snapshot: Mirati Therapeutics, Inc. ($21).
Total Amount
$21
General + Research + Ownership
Payments
1
Total payment records
General Amount
$21
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Mirati Therapeutics, Inc. | $21 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2022-09-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20220919000590 | I | Hematology/Oncology | WV | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 350 | 135 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 101 | 43 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 58 | 58 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 32 | 25 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 26 | 26 | $0 |
Insurance plans in this area (ZIP 91326)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WV | |
| - | WV | |
| - | WV | |
| P O D I A T R Y | WV | |
| Family Practice, Emergency Medicine, Family Practice | WV | |
| - | OH | |
| - | CA | |
| Emergency Medicine | WV | |
| - | WV | |
| - | WV |
Reviews
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