NPPES file of Aug 9, 2026

Dean G. Kardassakis, MD

Allergy Physician · San Francisco, CA

Dean G. Kardassakis, MD is an allergy physician with a practice address in San Francisco, California, and NPI 1811906571, issued on Aug 5, 2006. Check the license (California G62905, 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
1811906571
Name
Dean G. Kardassakis
Credential
MD
Primary taxonomy
Allergy Physician 207KA0200X
License number
G62905 CA
Self-reported in NPPES; status is on the state search
Practice location
450 Sutter St RM 933, San Francisco, CA 94108
Phone
(415) 362-5443
Enumerated
Aug 5, 2006
Record last updated
Dec 16, 2025
Medicare enrollment
Enrolled (PECOS I20040720001159); accepts Medicare assignment
Medical or professional school
University Of Nevada School Of Medicine, 1985
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 450 Sutter St RM 933

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

  1. Kristen Bond, CCC-SLPSpeech-Language Pathologist1316420227
  2. Joshua Glasner, PH.D., CCC-SLPSpeech-Language Pathologist1922835362
  3. Opal Gupta, MDAllergy & Immunology Physician1760724371
  4. Jacob Johnson, MDOtolaryngology Physician1457300477
  5. Gerald Kangelaris, MDOtolaryngology Physician1922234285
  6. Aasif Kazi, M.D.Otolaryngology Physician1497169221

Verify Dean G. Kardassakis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G62905
    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

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16% fewer Medicare Part D claims than the average allergy physician in 2024

629 Medicare Part D claims for 131 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Dean Kardassakis629
  2. Specialty average750

Most prescribed

  1. Montelukast Sodium68 claims
  2. Ipratropium Bromide58 claims
  3. Albuterol Sulfate Hfa46 claims
  4. Nucala37 claims
  5. Breo Ellipta31 claims
  6. Azelastine Hcl30 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 2 group practices

  1. Regents OF The University OF California - UcsfSan Francisco, CA
  2. Steven Machtinger MD And Associates IncSan Mateo, CA

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

Dean G. Kardassakis among 157 allergy physician records in California

Dean G. Kardassakis, MD is one of 157 allergy physician 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 31% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated1985 · median 1992 among the 82 with a school on file
  • Record last updated2025 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy Physician providers in California

There are 157 allergy physician records in California.

The 8 allergy physician records with the nearest ZIP codes

  1. Naveena Bobba, MDSan Francisco, CA 941101285705244
  2. Russell Leong, M.D.San Francisco, CA 941181518961069
  3. Julia Cronin, MDMountain View, CA 940401003080052
  4. Michael Mulligan, MDMountain View, CA 940401306884283
  5. Steven Rubinstein, M.D.Mountain View, CA 940401083664593
  6. Jack Levin, MDLos Altos, CA 940241063634434
  7. Betty Miller-Kolotkin, M.D.Daly City, CA 940151689786923
  8. Eugene Choi, MDBurlingame, CA 940101659529386

Common questions

What is Dean G. Kardassakis, MD's NPI number?

Dean G. Kardassakis, MD's National Provider Identifier (NPI) is 1811906571, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dean G. Kardassakis, MD located?

The NPPES record lists a practice address at 450 Sutter St RM 933, San Francisco, CA, 94108. Phone: (415) 362-5443. Providers update this record themselves, so call before visiting.

How can I verify Dean G. Kardassakis, MD's license?

NPPES lists California license number G62905, 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 Dean G. Kardassakis, MD prescribe under Medicare Part D?

In 2024, Dean G. Kardassakis, MD had 629 Medicare Part D claims for 131 beneficiaries; the average among allergy physician prescribers was 750. 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.