Elain Wen-Shang Tong, D.O.
Family Medicine Physician · Irvine, CA
Elain Wen-Shang Tong, D.O. is a family medicine physician with a practice address in Irvine, California, and NPI 1164610713, issued on Oct 9, 2007. Check the license (California 20A 9893, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Elain Wen-Shang Tong
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A 9893 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18 Endeavor Ste 304, Irvine, CA 92618
- Phone
- (714) 556-8664
- Enumerated
- Oct 9, 2007
- Record last updated
- Jan 5, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (714) 556-8665
- Medicare enrollment
- Enrolled (PECOS I20090501000249); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Elain Wen-Shang Tong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A 9893Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
213 Medicare Part D claims for 36 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Losartan Potassium22 claims
- Levothyroxine Sodium14 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.
Industry payments in 2024: $20.86
1 payment: food and beverage; the largest payer was Averitas Pharma Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Elain Wen-Shang Tong among 17,133 family medicine physician records in California
Elain Wen-Shang Tong, D.O. 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 fileYes · 62% of these records are
- Graduated2005 · median 2005 among the 10,652 with a school on file
- Record last updated2015 · 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).
148 family medicine physician records list a practice address in Irvine
They are 148 of the 7,778 NPPES records with a practice address in Irvine, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Irvine → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Albert Chang, M.D.Irvine, CA 926181790755569
- Anh Dinh, MDIrvine, CA 926181790775971
- Firoozeh Jahroumi, M.D.Irvine, CA 926181053310946
- Suzanne Kim, MDIrvine, CA 926181295795508
- Ronald Lee, MDIrvine, CA 926181417954306
- Thuy Nguyen, D.O.Irvine, CA 926181386688471
- Alan Nili, D.O.Irvine, CA 926181356366835
- Bradley Noon, M.D.Irvine, CA 926181740209014
Common questions
What is Elain Wen-Shang Tong, D.O.'s NPI number?
Elain Wen-Shang Tong, D.O.'s National Provider Identifier (NPI) is 1164610713, issued on Oct 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elain Wen-Shang Tong, D.O. located?
The NPPES record lists a practice address at 18 Endeavor Ste 304, Irvine, CA, 92618. Phone: (714) 556-8664. Providers update this record themselves, so call before visiting.
How can I verify Elain Wen-Shang Tong, D.O.'s license?
NPPES lists California license number 20A 9893, 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 Elain Wen-Shang Tong, D.O. prescribe under Medicare Part D?
In 2024, Elain Wen-Shang Tong, D.O. had 213 Medicare Part D claims for 36 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.