NPPES file of Aug 9, 2026

Sylvia Fowler, MD

Hematology & Oncology Physician · Panorama City, CA

Sylvia Fowler, MD is a hematology & oncology physician with a practice address in Panorama City, California, and NPI 1891810305, issued on Mar 21, 2007. Check the license (California G79706, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891810305
Name
Sylvia Fowler
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
G79706 CA
Self-reported in NPPES; status is on the state search
Practice location
13652 Cantara St, Panorama City, CA 91402
Phone
(818) 375-2000
Enumerated
Mar 21, 2007
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081110000304); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 13652 Cantara St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rebecca Aaronson, MDPediatrics Physician1487746814
  2. Jason Abber, MDUrology Physician1356366926
  3. Joseph Abouzeid, MDNeuromusculoskeletal Medicine & OMM Physician1518034495
  4. Kenneth Ackerman, MDInternal Medicine Physician1568521185
  5. Taha Ahmad, MDOccupational Medicine Physician1629126669
  6. Tarek Ahmed, MDInternal Medicine Physician1184783706

Verify Sylvia Fowler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G79706
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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76% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,545 Medicare Part D claims for 260 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.

  1. Sylvia Fowler1,545
  2. Specialty average877

Most prescribed

  1. Letrozole268 claims
  2. Anastrozole135 claims
  3. Prednisone131 claims
  4. Abiraterone Acetate104 claims
  5. Hydroxyurea77 claims
  6. Tagrisso57 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupPanorama City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sylvia Fowler among 1,583 hematology & oncology physician records in California

Sylvia Fowler, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 40% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1993 · median 2003 among the 1,124 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Solomon Jo, M.D.Panorama City, CA 914021649476433
  2. Helen Kang, MDPanorama City, CA 914021851475131
  3. Miguel Medina, MDPanorama City, CA 914021497803464
  4. Anuradha Pakanati, MDPanorama City, CA 914021164581740
  5. Swaminathan Ramanathan, MDPanorama City, CA 914021316006984
  6. Brian Shin, MDPanorama City, CA 914021942349634
  7. Sujie Tang, M.D.Sherman Oaks, CA 914031134302409
  8. Nubar Boghossian, M.D.Van Nuys, CA 914051508885088

Common questions

What is Sylvia Fowler, MD's NPI number?

Sylvia Fowler, MD's National Provider Identifier (NPI) is 1891810305, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia Fowler, MD located?

The NPPES record lists a practice address at 13652 Cantara St, Panorama City, CA, 91402. Phone: (818) 375-2000. Providers update this record themselves, so call before visiting.

How can I verify Sylvia Fowler, MD's license?

NPPES lists California license number G79706, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sylvia Fowler, MD prescribe under Medicare Part D?

In 2024, Sylvia Fowler, MD had 1,545 Medicare Part D claims for 260 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.