Siamak Madani, D.M.D.
Periodontics · San Jose, CA
Siamak Madani, D.M.D. is a periodontics with a practice address in San Jose, California, and NPI 1861538118, issued on Jan 30, 2007. Check the license (California 38872, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Siamak Madani
- Credential
- D.M.D.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 38872 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4155 Moorpark Ave Ste 18, San Jose, CA 95117
- Phone
- (408) 244-7674
- Enumerated
- Jan 30, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 246-3226
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 4155 Moorpark Ave Ste 18
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Damaris BrowningDentist1679846372
- Siyun GeAcupuncturist1851005102
Verify Siamak Madani in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 38872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average periodontics in 2024
84 Medicare Part D claims for 38 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin41 claims
- Ibuprofen30 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: $71.89
3 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 2,966 providers of this specialty with any payment received $1,338.41 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.
Siamak Madani among 929 periodontics records in California
Siamak Madani, D.M.D. is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in San Jose → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Dennis Calvert, D.D.S.San Jose, CA 951161427299098
- Dennis Calvert, D.D.S.San Jose, CA 951161508963554
- Binh Nguyen, DDSSan Jose, CA 951161750590048
- Logesh SwayamprakasamSan Jose, CA 951211215262225
- Yen-Tseng Lai, DMD, MSSan Jose, CA 951221295099026
- Timothy Gifford, D.D.S.San Jose, CA 951231114102357
- Kai Lei, DDS, MSSan Jose, CA 951231992188726
- Michael Nguyen, D.D.S.San Jose, CA 951111043566813
Common questions
What is Siamak Madani, D.M.D.'s NPI number?
Siamak Madani, D.M.D.'s National Provider Identifier (NPI) is 1861538118, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Siamak Madani, D.M.D. located?
The NPPES record lists a practice address at 4155 Moorpark Ave Ste 18, San Jose, CA, 95117. Phone: (408) 244-7674. Providers update this record themselves, so call before visiting.
How can I verify Siamak Madani, D.M.D.'s license?
NPPES lists California license number 38872, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Siamak Madani, D.M.D. prescribe under Medicare Part D?
In 2024, Siamak Madani, D.M.D. had 84 Medicare Part D claims for 38 beneficiaries; the average among periodontics prescribers was 277. 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.