Tan Ngo, M.D.
NPI 1770503997 · Internal Medicine Physician · Westminster, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tan Ngo, M.D. is a Internal Medicine Physician provider in Westminster, CA (NPI 1770503997).
Provider details
- NPI number
- 1770503997
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G75839L (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
19 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
26,189 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) |
|---|---|---|
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 7,638 | $23 |
| Application of Ultrasound, Each 15 Minutes97035 | 7,528 | $11 |
| Application of Mechanical Traction97012 | 2,179 | $11 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,786 | $94 |
| Application of Electrical Stimulation With Therapist Present, Each 15 Minutes97032 | 1,602 | $12 |
| Inhalation Treatment for Airway Obstruction Or Sputum Production94640 | 783 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 329 | 79 |
| Atorvastatin Calcium | 267 | 64 |
| Icosapent Ethylbrand: Vascepa | 235 | 54 |
| Losartan Potassium | 180 | 44 |
| Olmesartan Medoxomil | 156 | 39 |
| Azithromycin | 147 | 95 |
| Pregabalin | 143 | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 across 1 record (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
- 2006-07-20
- Last updated
- 2022-11-30
- Certified
- 2022-11-30
Frequently asked questions
- What is Tan Ngo's NPI number?
- Tan Ngo's National Provider Identifier (NPI) is 1770503997, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tan Ngo's specialty?
- Tan Ngo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tan Ngo located?
- Tan Ngo's practice location on file with NPPES is 9431 Edinger Ave, Westminster, CA 92683-7425.
- What is Tan Ngo's phone number?
- The practice phone number listed in the NPPES registry for Tan Ngo is (714) 839-8400.
- Does Tan Ngo accept Medicare?
- Tan Ngo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tan Ngo's NPI active?
- Yes — Tan Ngo's NPI (1770503997) is active in the NPPES registry as of the last update on 2022-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.