NPPES file of Aug 9, 2026

Tamer Rezk, MD

Addiction Medicine (Family Medicine) Physician · Whittier, CA

Tamer Rezk, MD is an addiction medicine (family medicine) physician with a practice address in Whittier, California, and NPI 1457810285, issued on Mar 19, 2019. Check the license (California A178729, 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
1457810285
Name
Tamer Rezk
Credential
MD
Primary taxonomy
Addiction Medicine (Family Medicine) Physician 207QA0401X
License number
A178729 CA
Self-reported in NPPES; status is on the state search
Practice location
12291 Washington Blvd Ste 301, Whittier, CA 90606
Phone
(562) 698-0811
Enumerated
Mar 19, 2019
Record last updated
Oct 14, 2022
Medicare enrollment
Enrolled (PECOS I20230802001594); 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 12291 Washington Blvd Ste 301

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

  1. Shiv KalariaStudent in an Organized Health Care Education/Training Program1124482567

Verify Tamer Rezk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A178729
    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

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76% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024

158 Medicare Part D claims for 79 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D.

  1. Tamer Rezk158
  2. Specialty average664

Most prescribed

  1. Methylprednisolone18 claims
  2. Gabapentin16 claims
  3. Trazodone Hcl15 claims
  4. Buprenorphine-Naloxone11 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 2 group practices

  1. Pih Health PhysiciansWhittier, CA
  2. Portola Medical Services PCLake Forest, CA

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

Tamer Rezk among 124 addiction medicine (family medicine) physician records in California

Tamer Rezk, MD is one of 124 addiction medicine (family medicine) physician records with a practice address in California. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 75% of them.

  • NPI issued2019 · 75% of these records are older, 16% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2006 · median 2015 among the 64 with a school on file
  • Record last updated2022 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Family Medicine) Physician providers in California

There are 124 addiction medicine (family medicine) physician records in California.

The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes

  1. Michael Stone, D.O.Norwalk, CA 906501629305479
  2. Gary Jaeger, MDHarbor City, CA 907101447321351
  3. Caleb Lusk, MDSan Pedro, CA 907311386149912
  4. Joy Hao, MDSanta Monica, CA 904041245543214
  5. Alexander Pappas, MDVenice, CA 902911033596143
  6. Matthew Torrington, M.D.Culver City, CA 902301568581296
  7. Gigi Simmons, MDLos Angeles, CA 900591891288957
  8. David Koroshec, MDLos Angeles, CA 900571104912336

Common questions

What is Tamer Rezk, MD's NPI number?

Tamer Rezk, MD's National Provider Identifier (NPI) is 1457810285, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Tamer Rezk, MD located?

The NPPES record lists a practice address at 12291 Washington Blvd Ste 301, Whittier, CA, 90606. Phone: (562) 698-0811. Providers update this record themselves, so call before visiting.

How can I verify Tamer Rezk, MD's license?

NPPES lists California license number A178729, 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 Tamer Rezk, MD prescribe under Medicare Part D?

In 2024, Tamer Rezk, MD had 158 Medicare Part D claims for 79 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. 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.