Dr. Tan Ngo, M.D.
What this data tells you about Dr. Ngo
Dr. Tan Ngo is an internal medicine specialist in Westminster, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Ngo performed 29,288 Medicare services across 4,580 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ngo received a total of $108 from 2 pharmaceutical and/or device companies across 6 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Ngo is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Physical therapy exercise, per 15 min A therapy session using exercises to improve strength, endurance, range of motion, and flexibility. Each 15-minute unit is billed separately. |
8,013 | $19 | $38 |
| Ultrasound therapy, each 15 minutes Application of ultrasound waves to tissue for therapeutic purposes. The procedure is billed in 15-minute increments. |
8,003 | $9 | $17 |
| Mechanical traction application Application of mechanical traction to the body. This procedure involves the use of a mechanical device to apply a pulling force. |
2,473 | $10 | $19 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,850 | $75 | $111 |
| Electrical stimulation therapy, per 15 minutes Application of electrical stimulation to the body with a therapist present. The service is billed for each 15-minute increment of treatment. |
1,544 | $10 | $21 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
727 | $4 | $25 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
724 | $12 | $20 |
| Inhalation treatment for airway obstruction or sputum production A treatment involving the inhalation of medication to help clear airway obstructions or reduce sputum production. |
723 | $8 | $15 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
670 | $48 | $65 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
591 | $11 | $15 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
589 | $29 | $42 |
| Lactated Ringer's infusion, up to 1000 cc Intravenous administration of Lactated Ringer's solution, a fluid used to replace fluids and electrolytes, in amounts up to 1000 cubic centimeters. |
589 | $2 | $10 |
| Evaluation for physical therapy, typically 30 minutes | 397 | $83 | $115 |
| Joint fluid aspiration or injection, small joint Removal of fluid from a small joint or injection of medication into a small joint. |
389 | $30 | $62 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
337 | $51 | $75 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
337 | $107 | $145 |
| Joint fluid aspiration or injection, medium joint Removal of fluid from a medium-sized joint or injection of medication into the joint space. |
315 | $41 | $65 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
250 | $41 | $55 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
203 | $53 | $74 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
138 | $33 | $39 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
137 | $76 | $78 |
| Simple wound repair, 2.6-7.5 cm A simple repair of a surface wound on the scalp, neck, underarms, trunk, arms, or legs measuring between 2.6 and 7.5 centimeters. |
120 | $100 | $134 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
79 | $137 | $190 |
| Tendon or ligament injection A procedure involving the injection of medication into a tendon or ligament. |
44 | $49 | $65 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
26 | $13 | $30 |
| Simple repair of small surface wound A minor surgical procedure to close a small cut or wound on the scalp, neck, trunk, arms, or legs that is 2.5 cm or less in length. |
20 | $84 | $110 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2019-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
2.2 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Ngo is a mixed practice specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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