NPPES file of Aug 9, 2026

Michael J. H Dez, MD

Obstetrics & Gynecology Physician · Gilroy, CA

Michael J. H Dez, MD is an obstetrics & gynecology physician with a practice address in Gilroy, California, and NPI 1942386446, issued on Oct 27, 2006. Check the license (California A48582, as entered in NPPES) on the Medical Board of California; 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
1942386446
Name
Michael J. H Dez
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A48582 CA
Self-reported in NPPES; status is on the state search
Practice location
7520 Arroyo Cir, Gilroy, CA 95020
Phone
(408) 848-4600
Enumerated
Oct 27, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A485820 CA
Medicare enrollment
Enrolled (PECOS I20110131000473); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7520 Arroyo Cir

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

  1. Megan Abdolrashidi, PSYDClinical Psychologist1093293094
  2. Vasumitha Alamelu, MDInternal Medicine Physician1194801613
  3. Heather AnkenyClinical Psychologist1235329012
  4. John Arvizu, O.D.Corneal and Contact Management Optometrist1326195538
  5. Robert Biggs, MDInternal Medicine Physician1770669277
  6. Paul Cheesman, MDPediatrics Physician1457437972

Verify Michael J. H Dez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A48582
    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
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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65% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

272 Medicare Part D claims for 102 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Michael H Dez272
  2. Specialty average165

Most prescribed

  1. Estradiol62 claims
  2. Estring38 claims
  3. Clobetasol Propionate22 claims
  4. Oxybutynin Chloride Er22 claims
  5. Nystatin-Triamcinolone18 claims
  6. Yuvafem14 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncGilroy, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael J. H Dez among 5,088 obstetrics & gynecology physician records in California

Michael J. H Dez, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1989 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Jumnah Arasu, M.D., F.A.C.O.G.Gilroy, CA 950201790824878
  2. Kari Bertrand, M.D.Gilroy, CA 950201285744615
  3. Pamela Edillon, MDGilroy, CA 950201184702680
  4. Ali Hoda, MDGilroy, CA 950201700959475
  5. Eliza Nguyen, MDGilroy, CA 950201447838990
  6. Dennis Chamberlain, MDFreedom, CA 950191437153335
  7. Maria Granthom, MDFreedom, CA 950191679750327
  8. Zarin Amin, DOHollister, CA 950231093971889

Common questions

What is Michael J. H Dez, MD's NPI number?

Michael J. H Dez, MD's National Provider Identifier (NPI) is 1942386446, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. H Dez, MD located?

The NPPES record lists a practice address at 7520 Arroyo Cir, Gilroy, CA, 95020. Phone: (408) 848-4600. Providers update this record themselves, so call before visiting.

How can I verify Michael J. H Dez, MD's license?

NPPES lists California license number A48582, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael J. H Dez, MD prescribe under Medicare Part D?

In 2024, Michael J. H Dez, MD had 272 Medicare Part D claims for 102 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.