Siamak Rassadi, M.D.
Clinical Cardiac Electrophysiology Physician · Phoenix, AZ
Siamak Rassadi, M.D. is a clinical cardiac electrophysiology physician with a practice address in Phoenix, Arizona, and NPI 1457500613, issued on Sep 12, 2008. Check the license (Arizona 46507, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Siamak Rassadi
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 46507 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5251 W Campbell Ave Ste 105, Phoenix, AZ 85031
- Phone
- (623) 547-5235
- Enumerated
- Sep 12, 2008
- Record last updated
- Oct 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (623) 533-6271
- Medicare enrollment
- Enrolled (PECOS I20121203000042); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 81 in Arizona → Look up another NPI →
Also registered at 5251 W Campbell Ave Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Cooley, PAPhysician Assistant1720482441
- Bryan Franco, PA-CPhysician Assistant1255671475
- Lianna Templeton, PA-CPhysician Assistant1801326392
- Charmonique Tims, NMDNaturopath1265766463
Verify Siamak Rassadi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 46507Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
2,061 Medicare Part D claims for 360 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Amlodipine Besylate181 claims
- Atorvastatin Calcium154 claims
- Losartan Potassium122 claims
- Furosemide121 claims
- Clopidogrel102 claims
- Metoprolol Succinate98 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.
Industry payments in 2024: $2,557.29
43 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- American Family Medicine LLCPhoenix, AZ
- Unomed LLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Siamak Rassadi among 81 clinical cardiac electrophysiology physician records in Arizona
Siamak Rassadi, M.D. is one of 81 clinical cardiac electrophysiology physician records with a practice address in Arizona. 99% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 99% of these records are
- In the CMS Doctors and Clinicians fileYes · 91% of these records are
- Graduated1998 · median 2000 among the 74 with a school on file
- Record last updated2019 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Arizona
There are 81 clinical cardiac electrophysiology physician records in Arizona.
All 81 in Arizona → Every provider in Phoenix → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- John Beshai, MDPhoenix, AZ 850321952345274
- Yoaav Krauthammer, M.D.Phoenix, AZ 850321396942595
- Jeffrey Munro, D.O.Phoenix, AZ 850321205027836
- Sushmitha Patibandla, M.D.Phoenix, AZ 850271083946917
- Sanjoy Bhattacharya, M.D.Phoenix, AZ 850371710150693
- Mark Seifert, MDPhoenix, AZ 850201942201694
- Mohamed Abdelrahman, M.D.Phoenix, AZ 850161457606261
- Marwan Bahu, M.D.Phoenix, AZ 850161114920618
Common questions
What is Siamak Rassadi, M.D.'s NPI number?
Siamak Rassadi, M.D.'s National Provider Identifier (NPI) is 1457500613, issued on Sep 12, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Siamak Rassadi, M.D. located?
The NPPES record lists a practice address at 5251 W Campbell Ave Ste 105, Phoenix, AZ, 85031. Phone: (623) 547-5235. Providers update this record themselves, so call before visiting.
How can I verify Siamak Rassadi, M.D.'s license?
NPPES lists Arizona license number 46507, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Siamak Rassadi, M.D. prescribe under Medicare Part D?
In 2024, Siamak Rassadi, M.D. had 2,061 Medicare Part D claims for 360 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.