DR. CHARLES H REDFERN (M.D.) – Hematology & Oncology Physician, NPI 1225007396
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
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Provider Addresses for DR. CHARLES H REDFERN (M.D.)
3075, Health Center Drive, Linda Vista, San Diego, San Diego County, California, 92123, United States
SUITE 102
SAN DIEGO, CA 921232773
Phone: (858) 637-7888
Fax: (858) 637-7887
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $108.
Total Amount is formed as General ($108) + Research ($0) + Ownership ($0) = $108.
Last reported payment date: 2023-05-02 • Largest payer in this snapshot: GENZYME CORPORATION ($93).
Total Amount
$108
General + Research + Ownership
Payments
2
Total payment records
General Amount
$108
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $93 |
| Siemens Medical Solutions USA, Inc. | $15 |
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: 2008-04-18
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 |
|---|---|---|---|---|
| I20080418000309 | I | Hematology/Oncology | CA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 274 | 124 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 235 | 151 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 146 | 47 | $0 |
| J9217 | Leuprolide acetate (for depot suspension), 7.5 mg | 86 | 12 | $0 |
| 96413 | Administration of chemotherapy into vein, 1 hour or less | 78 | 13 | $0 |
Insurance plans in this area (ZIP 92123)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | CA | 96415 | Infusion of chemotherapy into a vein | 40 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Internal Medicine, Hematology/Oncology | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Medical Oncology | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Hematology/Oncology, Internal Medicine, Medical Oncology | CA |
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