NPPES file of Aug 9, 2026

Tracy V. Dau, PA

Physician Assistant · Santa Ana, CA

Tracy V. Dau, PA is a physician assistant with a practice address in Santa Ana, California, and NPI 1104855105, issued on Jul 2, 2006. Check the license 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
1104855105
Name
Tracy V. Dau
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
25MP00066100 NJ
Self-reported in NPPES; status is on the state search
Practice location
210 N Tustin Ave, Santa Ana, CA 92705
Phone
(888) 959-5192
Enumerated
Jul 2, 2006
Record last updated
Jul 31, 2024
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 210 N Tustin Ave

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

  1. Melisa Erick, MDAnesthesiology Physician1700921442
  2. Kimberly Gonzalez, PA-CPhysician Assistant1326673542
  3. Brianna GrantPhysician Assistant1093332090
  4. Theresa Henry, P.A-CPhysician Assistant1942316757
  5. Yadira Landeros De SantiagoPhysician Assistant1114532272
  6. Steve Lee, M.D.Anesthesiology Physician1417156498

Verify Tracy V. Dau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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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93% fewer Medicare Part D claims than the average physician assistant in 2024

59 Medicare Part D claims for 43 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 12 claims were for opioids.

  1. Tracy Dau59
  2. Specialty average830

Most prescribed

  1. Cephalexin13 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.

Tracy V. Dau among 14,451 physician assistant records in California

Tracy V. Dau, PA is one of 14,451 physician assistant 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

124 physician assistant records list a practice address in Santa Ana

They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Anne Castle, P.A.Santa Ana, CA 927051669424206
  2. Robert Cha, PASanta Ana, CA 927051710098165
  3. Jennifer Desby, PA-CSanta Ana, CA 927051740392026
  4. Carie Ellison, PA-CSanta Ana, CA 927051447496906
  5. Theresa Henry, P.A-CSanta Ana, CA 927051942316757
  6. Alysha Henry-Johnson, PA-CSanta Ana, CA 927051659519601
  7. Bonnie Huckaby, MPAS, PA-CSanta Ana, CA 927051932109204
  8. Krista Kousens, MSPA-CSanta Ana, CA 927051598745622

Common questions

What is Tracy V. Dau, PA's NPI number?

Tracy V. Dau, PA's National Provider Identifier (NPI) is 1104855105, issued on Jul 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tracy V. Dau, PA located?

The NPPES record lists a practice address at 210 N Tustin Ave, Santa Ana, CA, 92705. Phone: (888) 959-5192. Providers update this record themselves, so call before visiting.

How can I verify Tracy V. Dau, PA's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Tracy V. Dau, PA prescribe under Medicare Part D?

In 2024, Tracy V. Dau, PA had 59 Medicare Part D claims for 43 beneficiaries; the average among physician assistant prescribers was 830. 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.