Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or California for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to California only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. California (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Ha Nguyen (NPI 1518256429)

Field	Value
Entity Type	Individual
Organization	Ha Nguyen
Address	227 W Janss Rd
City	Thousand Oaks
State	CA
ZIP	91360
Taxonomy	Neurological Surgery Physician
NPI Enumerated	March 31, 2011

Payer Source	Total Paid
Medicare	$149.5K
Medicaid	$0

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

6 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99233	The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…	710	$100	$69.4K
99223	The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…	250	$140	$35.6K
61312	Hematoma is an unusual collection of blood outside the blood vessels due to internal hemorrhage. Subdural or extradural hematoma is caused by head injuries, and it is a life–threatening condition.…	10	$1,680	$20.2K
62223	The provider places a shunt, or tube, leading from the ventricles of the brain to the abdominal cavity, pleural cavity, or other terminus, meaning another location to drain. Providers perform the…	10	$860	$11.2K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	80	$110	$8.7K
99205	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the provider…	20	$190	$4.3K

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 6 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. California Distribution

Ha Nguyen — 0 of 6 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — California

Full comparison — all codes billed, vs. state median

6 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
99233	877	11,530	120	$100	$26.2K
99214	22,618	37,970	120	$90	$23.2K
61312	7	10	10	$1,210	$19.4K
99223	729	13,190	50	$140	$11.3K
62223	9	10	20	$560	$11.3K
99205	4,963	8,360	30	$170	$7.2K

Related Providers

Other providers that share a Tax Identification Number (TIN) with Ha Nguyen, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Leo Polosajian	CA	Clinical Cardiac Electrophysiology Physician	$6M	$1.6M
David Kim	CA	Ophthalmology Physician	$3.5M	$8.8K
Vinh Tran	CA	Ophthalmology Physician	$2M	$43.1K
Jacob Offenberger	CA	Allergy & Immunology Physician	$360.6K	$1.5M
Farshad Malekmehr	CA	Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician	$1.6M	$0
Abraham Ishaaya	CA	Pulmonary Disease Physician	$1.3M	$0
Kenneth Bradley	CA	Pain Medicine Physician	$1.2M	$4.2K
Ramin Ganjianpour	CA	Specialist	$1.2M	$9.4K
Mayur Patel	CA	Pulmonary Disease Physician	$817.1K	$306.3K
Leonid Kleynberg	CA	Hematology & Oncology Physician	$1.1M	$2.5K

Nearby Providers

Other providers in the same ZIP code as Ha Nguyen, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Shariar Cohen-gadol	CA	Rheumatology Physician	$6.2M	$0
Joshua Hedaya	CA	Ophthalmology Physician	$3.2M	$38.9K
Elvira Lindwall	CA	Rheumatology Physician	$2.9M	$0
Vishva Dev	CA	Interventional Cardiology Physician	$2.1M	$0
Los Robles Surgicenter, LLC	CA	Ambulatory Surgical Clinic/Center	$1.4M	$0
David Aliabadi	CA	Interventional Cardiology Physician	$1.3M	$770
Jonathan Abelson	CA	Radiation Oncology Physician	$1.2M	$0
James Lin	CA	Anesthesiology Physician	$920.3K	$0
Sean Condon	CA	MOHS-Micrographic Surgery Physician	$690.8K	$0
Trung Bui	CA	Surgery Physician	$601.6K	$71K

Ha Nguyen — Billing Profile & Reimbursement Data

Sign up for Ha Nguyen — Billing Profile & Reimbursement Data policy alerts

Ha Nguyen — Billing Profile & Reimbursement Data

Sign up for Ha Nguyen — Billing Profile & Reimbursement Data policy alerts

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References