Dr. Siamak Zamani, MD

  • Laguna Hills, CA
  • Internist
NPI1730245358
Medicare services, 2020
24
Part D claims, 2019
805
Industry payments
$188
Medical group
1
Insurance carriers
4
Practice address
25292 McIntyre St, Laguna Hills, CA 92653
Practice phone
Call (702) 341-3152
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Long Beach VAMC

Laguna Hills, California

See all 2 affiliations

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Dr. Siamak Zamani is an internist in Laguna Hills, California

Dr. Zamani practices at Long Beach VAMC in Laguna Hills, California.

Dr. Zamani's NPI, 1730245358, was assigned on December 28, 2006. Dr. Zamani graduated from University of Vienna Faculty of Medicine in 1996. Dr. Zamani holds California license A93944.

NPI and contact details
NPI enumeration date
December 28, 2006
NPI status
Active
Practice phone
(702) 341-3152
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Siamak Zamani practices at Long Beach VAMC in Laguna Hills, California

Dr. Zamani's primary practice is Long Beach VAMC, at 25292 McIntyre St, Laguna Hills, CA 92653 in Orange County. The practice phone is (702) 341-3152.

  • Long Beach VAMC
    25292 McIntyre St, Laguna Hills, CA 92653 · Orange CountyPhone(702) 341-3152

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Siamak Zamani is affiliated with 1 site of care and 1 medical group

Dr. Zamani's primary practice is Long Beach VAMC in Laguna Hills, California. Dmand AI also links Dr. Zamani to 1 medical group, named with a free account.

Long Beach VAMCLaguna Hills, CaliforniaPrimary
1 medical groupName with a free account
See all 2 affiliations for Dr. Zamani

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Siamak Zamani's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zamani practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Long Beach VAMCAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Siamak Zamani is one of 16,751 internists in California

Internal medicine is Dr. Zamani's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zamani is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Zamani's licenses on file in 2 states: California and Virginia.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A93944 · 2006 to 2026 · taxonomy 207R00000X
  • Virginia license2005 to 2008

Internists near Dr. Zamani

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Siamak Zamani billed Medicare for 24 services in 2020

CMS data shows 24 Medicare services from Dr. Zamani across 1 procedure code in 2020, all of them office visits. Medicare paid $675 for them. Every service was in an office.

Medicare services, 202024
Paid by Medicare$675
Procedure codes1

Dr. Zamani's Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Office and hospital visits
2019: 562020: 2457%

Dr. Zamani compared with the California median for internists, 2020

  • Dr. Zamani
  • California median
Medicare services
24vs 36193% below
Part D claims
805vs 42191% above

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Zamani's most billed Medicare procedure codes, 2020

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Zamani

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zamani and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Siamak Zamani's patients have a median age of 64

Across all payers, Dmand AI patient panel data puts Dr. Zamani's median patient age at 64, with 48% women.

Dr. Zamani's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women48%
  • Men51%

Source: Dmand AI Patient Panel Data

Dr. Siamak Zamani wrote 805 Medicare Part D claims in 2019

In 2019, Dr. Zamani wrote 805 Medicare Part D claims. They cover 34 drugs, with $26,586 in total drug cost. In 2018, CMS named 2,599 claims across 68 drugs.

Part D claims, 2019805
Drugs named by CMS34
Total drug cost$26,586

Dr. Zamani's most prescribed drugs by claims, 2019

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2018 to 2019

  • 2018
  • 2019
Claims for drugs CMS names
2018: 2,5992019: 80569%

Drugs named by CMS: 34 in 2019, 68 in 2018.

See all prescribing by Dr. Zamani

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. Siamak Zamani received $188 in industry payments from 2016 to 2021

CMS Open Payments shows 9 general payments to Dr. Zamani from 7 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 85% of the total. Stryker Corporation paid the most, $66.

General payments to Dr. Zamani by program year, 2016 to 2021

General payments to Dr. Zamani by kind, 2016 to 2021

$188in total
  • Food and beverage$16085%
  • Speaker and faculty fees$179%
  • Education$116%

Companies that paid Dr. Zamani the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Zamani

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Siamak Zamani has 1 award and honors on record

Dmand AI lists 1 award for Dr. Zamani, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Zamani

  1. 2012
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Siamak Zamani graduated from University of Vienna Faculty of Medicine

Dr. Zamani graduated from University of Vienna Faculty of Medicine in 1996.

  1. Medical schoolUniversity of Vienna Faculty of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Siamak Zamani accepts plans from 4 insurance carriers

Dr. Zamani is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Regence Health Plans

Plan types Dr. Zamani accepts, by number of carriers

  1. Medicare4
  2. PPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Siamak Zamani's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Siamak Zamani

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Siamak Zamani's NPI number?

Dr. Siamak Zamani's NPI number is 1730245358. It was assigned on December 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Siamak Zamani?

Dr. Siamak Zamani is an internist in Laguna Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Siamak Zamani practice?

Dr. Zamani practices at 25292 McIntyre St, Laguna Hills, CA 92653. Dr. Zamani's primary practice is Long Beach VAMC in Laguna Hills, California. Dmand AI also links Dr. Zamani to 1 medical group.

What is Dr. Siamak Zamani's office phone number?

The practice phone on file for Dr. Zamani is (702) 341-3152.

What is Dr. Siamak Zamani's medical license number?

Dr. Zamani holds California license A93944, one of the licenses on file in 2 states.

Which states has Dr. Siamak Zamani been licensed in?

Dmand AI has state licenses on file for Dr. Zamani in California (2006 to 2026) and Virginia (2005 to 2008).

Does Dr. Siamak Zamani accept Medicare?

Yes. CMS data shows Dr. Zamani billed Medicare for 24 services in 2020.

Is Dr. Siamak Zamani board certified?

Yes. Dr. Zamani is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Siamak Zamani bill to Medicare?

In 2020, Dr. Zamani's most billed Medicare services were office visit, established patient (99213).

Where did Dr. Siamak Zamani go to medical school?

Dr. Zamani graduated from University of Vienna Faculty of Medicine in 1996.

Show 4 more questionsShow fewer questions

What drugs does Dr. Siamak Zamani prescribe most?

In 2019 Medicare Part D data, Dr. Zamani's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.

Has Dr. Siamak Zamani received payments from drug or device companies?

CMS Open Payments shows $188 in general payments to Dr. Zamani from 7 companies from 2016 to 2021. The largest total came from Stryker Corporation.

How long has Dr. Siamak Zamani been practicing?

Dr. Zamani graduated from medical school in 1996, 30 years ago.

What insurance does Dr. Siamak Zamani accept?

Dr. Zamani is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

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