Mahdad Nassiri, D.D.S
Periodontics · Petaluma, CA
Mahdad Nassiri, D.D.S is a periodontics with a practice address in Petaluma, California, and NPI 1891136768, issued on Jul 8, 2013. Check the license (California DDS100289, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mahdad Nassiri
- Credential
- D.D.S
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- DDS100289 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1416 Professional Dr Ste 202, Petaluma, CA 94954
- Phone
- (707) 769-1162
- Enumerated
- Jul 8, 2013
- Record last updated
- Sep 16, 2023
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Verify Mahdad Nassiri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DDS100289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average periodontics in 2024
344 Medicare Part D claims for 125 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin97 claims
- Ibuprofen92 claims
- Lorazepam48 claims
- Chlorhexidine Gluconate33 claims
- Triazolam17 claims
- Penicillin V Potassium14 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: $37.34
1 payment: compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Septodont 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.
Mahdad Nassiri among 929 periodontics records in California
Mahdad Nassiri, D.D.S 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 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 18% 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 updated2023 · 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 Petaluma → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Mercedes Heitman, DDSPetaluma, CA 949541669550869
- Brian Hollander, DDS MSNovato, CA 949471104902345
- Ira Simon, DDSNovato, CA 949471356415772
- Edwin Zinman, DDSSan Francisco, CA 949651205947702
- Mary Brinker, D.M.D.Mill Valley, CA 949411447439153
- Paula Sebastiani, DDS, MSMill Valley, CA 949411235229592
- Brand Ahn, DDSLarkspur, CA 949391689726093
- Hanna Brody, DDS MSLarkspur, CA 949391144867052
Common questions
What is Mahdad Nassiri, D.D.S's NPI number?
Mahdad Nassiri, D.D.S's National Provider Identifier (NPI) is 1891136768, issued on Jul 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mahdad Nassiri, D.D.S located?
The NPPES record lists a practice address at 1416 Professional Dr Ste 202, Petaluma, CA, 94954. Phone: (707) 769-1162. Providers update this record themselves, so call before visiting.
How can I verify Mahdad Nassiri, D.D.S's license?
NPPES lists California license number DDS100289, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mahdad Nassiri, D.D.S prescribe under Medicare Part D?
In 2024, Mahdad Nassiri, D.D.S had 344 Medicare Part D claims for 125 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.