NPPES file of Aug 9, 2026

Homayoun Zadeh, DDS PHD

Periodontics · Ventura, CA

Homayoun Zadeh, DDS PHD is a periodontics with a practice address in Ventura, California, and NPI 1699830729, issued on Dec 27, 2006. Check the license (California 35503, as entered in NPPES) with the California board that licenses this profession; 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
1699830729
Name
Homayoun Zadeh
Credential
DDS PHD
Primary taxonomy
Periodontics 1223P0300X
License number
35503 CA
Self-reported in NPPES; status is on the state search
Practice location
5700 Ralston St #306, Ventura, CA 93003
Phone
(805) 644-5284
Enumerated
Dec 27, 2006
Record last updated
Jul 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Homayoun Zadeh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 35503
    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
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8% fewer Medicare Part D claims than the average periodontics in 2024

255 Medicare Part D claims for 107 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Homayoun Zadeh255
  2. Specialty average277

Most prescribed

  1. Amoxicillin83 claims
  2. Naproxen Sodium31 claims
  3. Azithromycin26 claims
  4. Lorazepam14 claims
  5. Naproxen13 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: $3,400.67

8 payments; by number, the most common kind was food and beverage; the largest payer was Envista Holdings Corporation. 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.

  1. Homayoun Zadeh$3,400.67
  2. Specialty average$1,338.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Homayoun Zadeh among 929 periodontics records in California

Homayoun Zadeh, DDS PHD 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 71% 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 updated2016 · 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.

The 8 periodontics records with the nearest ZIP codes

  1. Ali Hosseinzadeh, DMDVentura, CA 930031659436772
  2. Frank Satinover, D.M.D.Ventura, CA 930031841482650
  3. Nathan Shapiro, DMDVentura, CA 930031629118294
  4. Celia SommerVentura, CA 930031003339391
  5. Jonathan Wong, DDSVentura, CA 930031508089335
  6. Juliet Chang, DMD, MSDCamarillo, CA 930101629527593
  7. John Endow, DDSCamarillo, CA 930101144352766
  8. Ronald Hunter, D.D.S., M.S.D.Camarillo, CA 930101770585283

Common questions

What is Homayoun Zadeh, DDS PHD's NPI number?

Homayoun Zadeh, DDS PHD's National Provider Identifier (NPI) is 1699830729, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Homayoun Zadeh, DDS PHD located?

The NPPES record lists a practice address at 5700 Ralston St #306, Ventura, CA, 93003. Phone: (805) 644-5284. Providers update this record themselves, so call before visiting.

How can I verify Homayoun Zadeh, DDS PHD's license?

NPPES lists California license number 35503, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Homayoun Zadeh, DDS PHD prescribe under Medicare Part D?

In 2024, Homayoun Zadeh, DDS PHD had 255 Medicare Part D claims for 107 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.