NPPES file of Aug 9, 2026

Rafik A. Shereen, MD

Internal Medicine Physician · Hawthorne, CA

Rafik A. Shereen, MD is an internal medicine physician with a practice address in Hawthorne, California, and NPI 1952807372, issued on Apr 4, 2018. Check the license (California 173382, 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
1952807372
Name
Rafik A. Shereen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
173382 CA
Self-reported in NPPES; status is on the state search
Practice location
5400 W Rosecrans Ave Ste 100, Hawthorne, CA 90250
Phone
(310) 643-8500
Enumerated
Apr 4, 2018
Record last updated
Jul 21, 2026
Medicare enrollment
Enrolled (PECOS I20211019001317); 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 5400 W Rosecrans Ave Ste 100

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

  1. Ashley Daniels, PA-C, MPHPhysician Assistant1861802571
  2. Stephanie Fanous, NPFamily Nurse Practitioner1306344122
  3. Michael Genova, M.D.Family Medicine Physician1376579227
  4. Viraj Patel, DOSports Medicine (Internal Medicine) Physician1922669548
  5. Alecsandra Roberts, M.D.Family Medicine Physician1255429098

Verify Rafik A. Shereen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 173382
    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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73% more Medicare Part D claims than the average internal medicine physician in 2024

5,492 Medicare Part D claims for 492 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 82 claims were for opioids.

  1. Rafik Shereen5,492
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium545 claims
  2. Amlodipine Besylate279 claims
  3. Losartan Potassium257 claims
  4. Metformin Hcl202 claims
  5. Lisinopril178 claims
  6. Levothyroxine Sodium154 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. Healthcare Partners Affiliates Medical GroupTorrance, CA

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

Rafik A. Shereen among 17,696 internal medicine physician records in California

Rafik A. Shereen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.

  • NPI issued2018 · 84% of these records are older, 14% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2017 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 internal medicine physician records list a practice address in Hawthorne

They are 18 of the 818 NPPES records with a practice address in Hawthorne, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Alfonso Brigham, M.D.Hawthorne, CA 902501902858343
  2. Jennifer Chiu, M.D.Hawthorne, CA 902501962528430
  3. Malay Das, MDHawthorne, CA 902501164526224
  4. Mehmet Demirozu, M.D.Hawthorne, CA 902501295753234
  5. Valentin Hernandez, M.D.Hawthorne, CA 902501871520320
  6. Augustine Iluore, MDHawthorne, CA 902501336205442
  7. Raymond Jing, MDHawthorne, CA 902501518968536
  8. Mark Kim, M.D.Hawthorne, CA 902501073743621

Common questions

What is Rafik A. Shereen, MD's NPI number?

Rafik A. Shereen, MD's National Provider Identifier (NPI) is 1952807372, issued on Apr 4, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Rafik A. Shereen, MD located?

The NPPES record lists a practice address at 5400 W Rosecrans Ave Ste 100, Hawthorne, CA, 90250. Phone: (310) 643-8500. Providers update this record themselves, so call before visiting.

How can I verify Rafik A. Shereen, MD's license?

NPPES lists California license number 173382, 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 Rafik A. Shereen, MD prescribe under Medicare Part D?

In 2024, Rafik A. Shereen, MD had 5,492 Medicare Part D claims for 492 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.