James Ngo, D.O.
NPI 1699954271 · Family Medicine Physician · Stockton, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Ngo, D.O. is a Family Medicine Physician provider in Stockton, CA (NPI 1699954271).
Provider details
- NPI number
- 1699954271
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A 10141 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
17 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 17 | $93 |
Typical Medicare-allowed amounts for these services range $93–$93 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 612 | 218 |
| Amlodipine Besylate | 382 | 135 |
| Lisinopril | 329 | 114 |
| Losartan Potassium | 296 | 98 |
| Famotidine | 214 | 91 |
| Levothyroxine Sodium | 182 | 56 |
| Gabapentin | 171 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-30
- Last updated
- 2021-12-15
Frequently asked questions
- What is James Ngo's NPI number?
- James Ngo's National Provider Identifier (NPI) is 1699954271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Ngo's specialty?
- James Ngo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Ngo located?
- James Ngo's practice location on file with NPPES is 2505 W Hammer Ln, Stockton, CA 95209-2839.
- What is James Ngo's phone number?
- The practice phone number listed in the NPPES registry for James Ngo is (209) 957-7050.
- Does James Ngo accept Medicare?
- James Ngo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Ngo's NPI active?
- Yes — James Ngo's NPI (1699954271) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.