NPPES file of Aug 9, 2026

Xiaoguang Wang, M.D.

Occupational Medicine Physician · Fontana, CA

Xiaoguang Wang, M.D. is an occupational medicine physician with a practice address in Fontana, California, and NPI 1528246881, issued on Feb 8, 2008. Check the license (California A118779, 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
1528246881
Name
Xiaoguang Wang
Credential
M.D.
Primary taxonomy
Occupational Medicine Physician 2083X0100X
License number
A118779 CA
Self-reported in NPPES; status is on the state search
Practice location
7774 Cherry Ave, Fontana, CA 92336
Phone
(909) 880-6400
Enumerated
Feb 8, 2008
Record last updated
Jun 2, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(909) 880-6445
Medicare enrollment
Enrolled (PECOS I20120404000068); may accept Medicare assignment
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 7774 Cherry Ave

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

  1. Syeda AmeenaInternal Medicine Physician1972998706
  2. Jonathan Enriquez, DCChiropractor1982491726
  3. Reuben San Juan, PA-CMedical Physician Assistant1861895781

Verify Xiaoguang Wang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A118779
    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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73% fewer Medicare Part D claims than the average occupational medicine physician in 2024

211 Medicare Part D claims for 124 beneficiaries, against an average of 794 among the 463 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Xiaoguang Wang211
  2. Specialty average794

Most prescribed

  1. Ibuprofen35 claims
  2. Cephalexin28 claims
  3. Mupirocin19 claims
  4. Azithromycin12 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. Comprehensive Primary Care Medical Associates, IncSan Bernardino, CA

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

Xiaoguang Wang among 415 occupational medicine physician records in California

Xiaoguang Wang, M.D. is one of 415 occupational medicine physician records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 69% of them.

  • NPI issued2008 · 69% of these records are older, 24% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 12% of these records are
  • Graduated1987 · median 1995 among the 51 with a school on file
  • Record last updated2015 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Occupational Medicine Physician providers in California

There are 415 occupational medicine physician records in California.

The 8 occupational medicine physician records with the nearest ZIP codes

  1. Guirguis Hanna, MDFontana, CA 923351356418560
  2. Lauri Hemsley, MDFontana, CA 923351114086790
  3. Richard Yu, MDFontana, CA 923351376610212
  4. Jia Li, M.D., M.P.H.Colton, CA 923241801016522
  5. Akbar Sharip, MD, MPHColton, CA 923241720220122
  6. Joshua Padilla, DOLoma Linda, CA 923501932944188
  7. Haitham Juma, M.D.Loma Linda, CA 923541578700332
  8. Nasrin KazemiLoma Linda, CA 923541699209163

Common questions

What is Xiaoguang Wang, M.D.'s NPI number?

Xiaoguang Wang, M.D.'s National Provider Identifier (NPI) is 1528246881, issued on Feb 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Xiaoguang Wang, M.D. located?

The NPPES record lists a practice address at 7774 Cherry Ave, Fontana, CA, 92336. Phone: (909) 880-6400. Providers update this record themselves, so call before visiting.

How can I verify Xiaoguang Wang, M.D.'s license?

NPPES lists California license number A118779, 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 Xiaoguang Wang, M.D. prescribe under Medicare Part D?

In 2024, Xiaoguang Wang, M.D. had 211 Medicare Part D claims for 124 beneficiaries; the average among occupational medicine physician prescribers was 794. 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.