NPPES file of Aug 9, 2026

Illie I-San Wu, M.D

Family Medicine Physician · Garden Grove, CA

Illie I-San Wu, M.D is a family medicine physician with a practice address in Garden Grove, California, and NPI 1700083516, issued on Jun 27, 2007. Check the license (California A107732, 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
1700083516
Name
Illie I-San Wu
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A107732 CA
Self-reported in NPPES; status is on the state search
Practice location
12751 Harbor Blvd, Garden Grove, CA 92840
Phone
(714) 636-7852
Enumerated
Jun 27, 2007
Record last updated
Nov 10, 2011 (not updated in 15 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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Also registered at 12751 Harbor Blvd

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

  1. Vincent Ayroso, DOFamily Medicine Physician1891993168
  2. Bryan Choi, MDInternal Medicine Physician1255525499
  3. David FannFamily Medicine Physician1982098182
  4. Cynthia Gonzalez, M.D.Family Medicine Physician1881125409
  5. Kaidi Kim, MDPediatrics Physician1952763054
  6. Edward Ko, M.D.Internal Medicine Physician1396911798

Verify Illie I-San Wu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A107732
    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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46% fewer Medicare Part D claims than the average family medicine physician in 2024

1,929 Medicare Part D claims for 221 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Illie Wu1,929
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium183 claims
  2. Metformin Hcl102 claims
  3. Lisinopril99 claims
  4. Amlodipine Besylate76 claims
  5. Ibuprofen58 claims
  6. Gabapentin55 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.

Illie I-San Wu among 17,133 family medicine physician records in California

Illie I-San Wu, M.D is one of 17,133 family medicine physician records with a practice address in California. 81% 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 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2011 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

69 family medicine physician records list a practice address in Garden Grove

They are 69 of the 4,572 NPPES records with a practice address in Garden Grove, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vincent Ayroso, DOGarden Grove, CA 928401891993168
  2. Phillip Castellano, MDGarden Grove, CA 928401467529321
  3. Paul Johnson, MDGarden Grove, CA 928401497790661
  4. Chan Kim, MDGarden Grove, CA 928401679513550
  5. Khiem Lai, M.D.Garden Grove, CA 928401538165576
  6. Nancy Lee-Hata, MDGarden Grove, CA 928401235120734
  7. Gerald Lim, M.D.Garden Grove, CA 928401427091958
  8. Michael Malouf, M.D.Garden Grove, CA 928401578549234

Common questions

What is Illie I-San Wu, M.D's NPI number?

Illie I-San Wu, M.D's National Provider Identifier (NPI) is 1700083516, issued on Jun 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Illie I-San Wu, M.D located?

The NPPES record lists a practice address at 12751 Harbor Blvd, Garden Grove, CA, 92840. Phone: (714) 636-7852. Providers update this record themselves, so call before visiting.

How can I verify Illie I-San Wu, M.D's license?

NPPES lists California license number A107732, 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 Illie I-San Wu, M.D prescribe under Medicare Part D?

In 2024, Illie I-San Wu, M.D had 1,929 Medicare Part D claims for 221 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.