DR. CHARLES H REDFERN M.D.
NPI 1225007396
Internal Medicine - Hematology & Oncology in San Diego, CA

Q: What is Charles Redfern's NPI number?

The NPI number for Charles Redfern is 1225007396. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Q: What is Charles Redfern's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Charles Redfern was last updated on July 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 14, 2006PECOS EnrolledAccepts Medicare Assignment

3075 HEALTH CENTER DR, SUITE 102, SAN DIEGO, CA 92123(858) 637-7888(858) 637-7887 Get Directions Write a Review

NPPES record last updated: July 26, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Charles H Redfern M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHARLES H REDFERN M.D. (NPI 1225007396) is an individual hematology & oncology provider in San Diego, California, licensed in California (A52733) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (1991).

NPPES Registry Identity

NPI1225007396

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. CHARLES H REDFERNCredential: M.D.

Location Address3075 HEALTH CENTER DR, SUITE 102San Diego, CA 92123-2773

Mailing Address3075 Health Center Dr, Suite 102San Diego, CA 92123-2773 · (858) 637-7888 · Fax (858) 637-7887

Phone(858) 637-7888

Fax(858) 637-7887

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 1991

Enumeration DateMarch 14, 2006

Last NPPES UpdateJuly 26, 2012

✔ NPI 1225007396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · A52733

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

3075 HEALTH CENTER DR, San Diego, CA 92123

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Other Identifiers 1

Medicare UPING44383CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Charles H Redfern M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628156403

PECOS Enrollment IDI20080418000309

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Charles Redfern reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medical Oncology Associates Of San Diego A Medical Group Inc

Same address

Hematology & Oncology

3075 HEALTH CENTER DR, SUITE 102
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
15 clinicians in this Medicare group

NPI 1629046925 (858) 637-7888

Emergency And Acute Care Medical Corporation

Same address

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

Scripps Health

3.3 mi

General Acute Care Hospital

4077 5TH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
1,598 clinicians in this Medicare group

NPI 1659359446 (619) 260-7101

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

434 services207 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

116 services41 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

76 services15 patients

Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle 96402

This procedure involves the injection of hormone-based anti-cancer drugs under the skin or into a muscle. These medications help to slow down or stop the growth of certain types of cancer cells. The process is usually quick and can be performed in a clinic or hospital.

43 services11 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

43 services43 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

43 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$184.71 typical visit price

range $62.10 – $184.71

Typical copayment $46.17 (range $15.52 – $46.17)

Most-billed visit code 99205

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARC JOSEPH VERLASKY N.P.

Nurse Practitioner

3075 HEALTH CENTER DR
SAN DIEGO, CA 92123

San Diego County (858) 939-3831

DR. ANNIE TSUEN CHIN O.D.

Optometrist

3075 HEALTH CENTER DR
SAN DIEGO, CA 92123

San Diego County (858) 939-5400

SAN DIEGO DIAGNOSTIC RADIOLOGY MEDICAL GROUP INC

Radiology (Diagnostic Radiology)

3075 HEALTH CENTER DR, SHARP MEMORIAL OUTPATIENT PAVILLIONS
SAN DIEGO, CA 92123

San Diego County (858) 939-5091

RICHARD LEUNG M D INC A PROFESSIONAL MEDICAL CORPORATION

Ophthalmology

3075 HEALTH CENTER DR, 403
SAN DIEGO, CA 92123

San Diego County (858) 278-9900

DR. STANLEY S MESTMAN O.D.

Optometrist

3075 HEALTH CENTER DR, SUITE 401
SAN DIEGO, CA 92123

San Diego County (858) 939-5400

JAZMIN ROSHAN

Registered Nurse (Oncology)

3075 HEALTH CENTER DR
SAN DIEGO, CA 92123

San Diego County (858) 637-7888

ROBERT M. BARONE MD A MEDICAL CORPORATION

Specialist

3075 HEALTH CENTER DR, SUITE 102
SAN DIEGO, CA 92123

San Diego County (858) 637-7888

MARIE PATRICIA SHIEH MD

Internal Medicine (Hematology & Oncology)

3075 HEALTH CENTER DR, SUITE 102
SAN DIEGO, CA 92123

San Diego County (858) 637-7888

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charles Redfern's NPI number?

The NPI number for Charles Redfern is 1225007396. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Charles Redfern located?

Charles Redfern practices at 3075 Health Center Dr Suite 102, San Diego, CA 92123. The listed phone number is (858) 637-7888.

What is Charles Redfern's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Charles Redfern enrolled in Medicare?

Yes. Charles Redfern is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Charles Redfern's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Redfern reassigns Medicare benefits to 3 organizations: Medical Oncology Associates Of San Diego A Medical Group Inc (San Diego, CA), Emergency And Acute Care Medical Corporation (San Diego, CA) and Scripps Health (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Redfern's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charles Redfern was last updated on July 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.