NPPES file of Aug 9, 2026

Siamak Rouzroch, MD

Internal Medicine Physician · Long Beach, CA

Siamak Rouzroch, MD is an internal medicine physician with a practice address in Long Beach, California, and NPI 1730271685, issued on Sep 29, 2006. Check the license (California A72525, 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
1730271685
Name
Siamak Rouzroch
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A72525 CA
Self-reported in NPPES; status is on the state search
Practice location
1703 Termino Ave, Long Beach, CA 90804
Phone
(562) 494-8008
Enumerated
Sep 29, 2006
Record last updated
Oct 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(562) 494-8001
Medicare enrollment
Enrolled (PECOS I20040319000623); 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 1703 Termino Ave

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

  1. Thomas Di Julio, M.D.Specialist1396712188
  2. Arthur Lunsk, M.D.Obstetrics & Gynecology Physician1952473167
  3. John Thomas, MD ENTOtolaryngology Physician1578667069
  4. Connie Wong, DPMPodiatrist1295746345
  5. Kellianne Wong, PHARMDPharmacist1407266786
  6. Steven Yee, PHARMDPharmacist1558772525

Verify Siamak Rouzroch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A72525
    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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88% more Medicare Part D claims than the average internal medicine physician in 2024

5,965 Medicare Part D claims for 458 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 40 claims were for opioids.

  1. Siamak Rouzroch5,965
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate332 claims
  2. Lisinopril328 claims
  3. Atorvastatin Calcium245 claims
  4. Simvastatin243 claims
  5. Metformin Hcl233 claims
  6. Levothyroxine Sodium180 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.

Siamak Rouzroch among 17,696 internal medicine physician records in California

Siamak Rouzroch, 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1995 · median 2004 among the 11,065 with a school on file
  • Record last updated2007 · 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).

221 internal medicine physician records list a practice address in Long Beach

They are 221 of the 13,650 NPPES records with a practice address in Long Beach, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jimmy Diep, M.D.Long Beach, CA 908041912944216
  2. John Duong, M.D.Long Beach, CA 908041356364889
  3. Ronaldo Roque, M.D.Long Beach, CA 908041932397189
  4. Michael Tehrani, M.D.Long Beach, CA 908041427320704
  5. Priyanka Gogte, MDLakewood, CA 908051518453422
  6. Sayeed Khan, M.D.Long Beach, CA 908051497757512
  7. Alexandria Lee, M.D.Long Beach, CA 908031598128183
  8. Ronald Tejada, MDLakewood, CA 908051407165079

Common questions

What is Siamak Rouzroch, MD's NPI number?

Siamak Rouzroch, MD's National Provider Identifier (NPI) is 1730271685, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Siamak Rouzroch, MD located?

The NPPES record lists a practice address at 1703 Termino Ave, Long Beach, CA, 90804. Phone: (562) 494-8008. Providers update this record themselves, so call before visiting.

How can I verify Siamak Rouzroch, MD's license?

NPPES lists California license number A72525, 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 Siamak Rouzroch, MD prescribe under Medicare Part D?

In 2024, Siamak Rouzroch, MD had 5,965 Medicare Part D claims for 458 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.