NPPES file of Aug 9, 2026

Hooman Zarrinkelk, DDS

Oral and Maxillofacial Surgery (Dentist) · Ventura, CA

Hooman Zarrinkelk, DDS is an oral and maxillofacial surgery (dentist) with a practice address in Ventura, California, and NPI 1740304534, issued on Mar 18, 2007. Check the license (California 41811, 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
1740304534
Name
Hooman Zarrinkelk
Credential
DDS
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
41811 CA
Self-reported in NPPES; status is on the state search
Practice location
5200 Telegraph RD Ste B, Ventura, CA 93003
Phone
(805) 648-5121
Enumerated
Mar 18, 2007
Record last updated
Jul 30, 2024
Fax
(805) 648-3670
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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Also registered at 5200 Telegraph RD Ste B

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hessam Siavash, DDS, MDOral and Maxillofacial Surgery (Dentist)1316080450

Verify Hooman Zarrinkelk 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 41811
    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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21% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

490 Medicare Part D claims for 184 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 162 claims were for opioids.

  1. Hooman Zarrinkelk490
  2. Specialty average406

Most prescribed

  1. Chlorhexidine Gluconate143 claims
  2. Acetaminophen-Codeine105 claims
  3. Amoxicillin87 claims
  4. Ibuprofen50 claims
  5. Hydrocodone-Acetaminophen47 claims
  6. Clindamycin Hcl18 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: $8,912.17

7 payments; by number, the most common kind was food and beverage; the largest payer was Keystone Dental Inc. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hooman Zarrinkelk$8,912.17
  2. Specialty average$1,077.58

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

Hooman Zarrinkelk among 987 oral and maxillofacial surgery (dentist) records in California

Hooman Zarrinkelk, DDS is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% 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 34% of them.

  • NPI issued2007 · 34% of these records are older, 42% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2024 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral and Maxillofacial Surgery (Dentist) providers in California

There are 987 oral and maxillofacial surgery (dentist) records in California.

The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes

  1. Paul Bohman, DDSVentura, CA 930031336271170
  2. William Ferguson, D.D.S.Ventura, CA 930031588658413
  3. James Jacobs, DDS, MSVentura, CA 930031821207416
  4. John Jeppesen, DMDVentura, CA 930031952394421
  5. Hessam Siavash, DDS, MDVentura, CA 930031316080450
  6. Reynaldo Rivera, MD, DDSCamarillo, CA 930101790902989
  7. Brijesh Patel, M.D., D.D.SMoorpark, CA 930211497843403
  8. Neal FreemanOjai, CA 930231356452304

Common questions

What is Hooman Zarrinkelk, DDS's NPI number?

Hooman Zarrinkelk, DDS's National Provider Identifier (NPI) is 1740304534, issued on Mar 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hooman Zarrinkelk, DDS located?

The NPPES record lists a practice address at 5200 Telegraph RD Ste B, Ventura, CA, 93003. Phone: (805) 648-5121. Providers update this record themselves, so call before visiting.

How can I verify Hooman Zarrinkelk, DDS's license?

NPPES lists California license number 41811, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hooman Zarrinkelk, DDS prescribe under Medicare Part D?

In 2024, Hooman Zarrinkelk, DDS had 490 Medicare Part D claims for 184 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.