Nhanhau Ngo, M.D.
NPI 1336184316 · Family Medicine Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nhanhau Ngo, M.D. is a Family Medicine Physician provider in Garden Grove, CA (NPI 1336184316).
Provider details
- NPI number
- 1336184316
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A61105 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,427 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 762 | $99 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 288 | $67 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 280 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 244 | $138 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 234 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 124 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 517 | 145 |
| Rosuvastatin Calcium | 456 | 144 |
| Losartan Potassium | 420 | 117 |
| Amlodipine Besylate | 281 | 91 |
| Empagliflozin/Linagliptinbrand: Glyxambi | 203 | 33 |
| Montelukast Sodium | 187 | 90 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$223 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2013-03-27
Frequently asked questions
- What is Nhanhau Ngo's NPI number?
- Nhanhau Ngo's National Provider Identifier (NPI) is 1336184316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nhanhau Ngo's specialty?
- Nhanhau Ngo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nhanhau Ngo located?
- Nhanhau Ngo's practice location on file with NPPES is 12692 Brookhurst Street, Garden Grove, CA 92840.
- What is Nhanhau Ngo's phone number?
- The practice phone number listed in the NPPES registry for Nhanhau Ngo is (714) 657-7100.
- Does Nhanhau Ngo accept Medicare?
- Nhanhau Ngo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nhanhau Ngo's NPI active?
- Yes — Nhanhau Ngo's NPI (1336184316) is active in the NPPES registry as of the last update on 2013-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.