Mengying Guo
Internal Medicine Physician · Torrance, CA
Mengying Guo is an internal medicine physician with a practice address in Torrance, California, and NPI 1235664301, issued on Apr 26, 2017. Check the license (California A158952, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mengying Guo
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A158952 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W Carson St # 400, Torrance, CA 90502
- Phone
- (310) 222-2401
- Enumerated
- Apr 26, 2017
- Record last updated
- Nov 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1000 W Carson St # 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mengying Guo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
56 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Mengying Guo among 17,696 internal medicine physician records in California
Mengying Guo is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
231 internal medicine physician records list a practice address in Torrance
They are 231 of the 8,901 NPPES records with a practice address in Torrance, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Torrance → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Peter Barrett, M.D.Torrance, CA 905021568441954
- Michael Bolaris, MDTorrance, CA 905021881898401
- Brian Chow, MDTorrance, CA 905021972716223
- Anthony Dike, MDTorrance, CA 905021003858481
- Robert JendersTorrance, CA 905021629006796
- Rashmi Menon, M.D.Torrance, CA 905021407053416
- Emily Nguyen, DOTorrance, CA 905021083812028
- Mahnaz Rahbar, M.D.Torrance, CA 905021306971775
Common questions
What is Mengying Guo's NPI number?
Mengying Guo's National Provider Identifier (NPI) is 1235664301, issued on Apr 26, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mengying Guo located?
The NPPES record lists a practice address at 1000 W Carson St # 400, Torrance, CA, 90502. Phone: (310) 222-2401. Providers update this record themselves, so call before visiting.
How can I verify Mengying Guo's license?
NPPES lists California license number A158952, 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 Mengying Guo prescribe under Medicare Part D?
In 2024, Mengying Guo had 56 Medicare Part D claims for 20 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.