James Ngo, D.O.
Family Medicine Physician · Stockton, CA
James Ngo, D.O. is a family medicine physician with a practice address in Stockton, California, and NPI 1699954271, issued on Oct 30, 2007. Check the license (California 20A 10141, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Ngo
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A 10141 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2505 W Hammer LN, Stockton, CA 95209
- Phone
- (209) 957-7050
- Enumerated
- Oct 30, 2007
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090826000650); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2505 W Hammer LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Saleha Ahmed, M.D.Internal Medicine Physician1275561805
- Syed Ali, MDFamily Medicine Physician1548349038
- Krystle Balduzzi, MDPediatrics Physician1689993396
- Harsimran Basra, MDInternal Medicine Physician1710220454
Verify James Ngo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A 10141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average family medicine physician in 2024
6,098 Medicare Part D claims for 646 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 69 claims were for opioids.
Most prescribed
- Atorvastatin Calcium612 claims
- Amlodipine Besylate382 claims
- Lisinopril329 claims
- Losartan Potassium296 claims
- Famotidine214 claims
- Levothyroxine Sodium182 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
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Ngo among 17,133 family medicine physician records in California
James Ngo, 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
- Graduated2006 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 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).
116 family medicine physician records list a practice address in Stockton
They are 116 of the 9,522 NPPES records with a practice address in Stockton, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Stockton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Syed Ali, MDStockton, CA 952091548349038
- William Beck, M.D.Stockton, CA 952091043248982
- Nicholas Birlew, D.O.Stockton, CA 952091821188483
- John Bylsma, MDStockton, CA 952091972569416
- Daniel Cooper, DOStockton, CA 952091790770022
- Carlos Delgado, D.O.Stockton, CA 952091659494946
- Steven Nelson, MDStockton, CA 952091558327908
- Trieu Pham, M.D.Stockton, CA 952091881836419
Common questions
What is James Ngo, D.O.'s NPI number?
James Ngo, D.O.'s National Provider Identifier (NPI) is 1699954271, issued on Oct 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Ngo, D.O. located?
The NPPES record lists a practice address at 2505 W Hammer LN, Stockton, CA, 95209. Phone: (209) 957-7050. Providers update this record themselves, so call before visiting.
How can I verify James Ngo, D.O.'s license?
NPPES lists California license number 20A 10141, 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 James Ngo, D.O. prescribe under Medicare Part D?
In 2024, James Ngo, D.O. had 6,098 Medicare Part D claims for 646 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.