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.

Walter Park (NPI 1538355672)

Field	Value
Entity Type	Individual
Organization	Walter Park
Address	300 Pasteur Dr
City	Stanford
State	CA
ZIP	94305
Taxonomy	Gastroenterology Physician
NPI Enumerated	September 21, 2007

Payer Source	Total Paid
Medicare	$54.9K
Medicaid	$0

Medicare: Complete Services Breakdown

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

9 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
43238	The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum where he carries out an ultrasound–guided, intramural or transmural fine needle…	80	$210	$17K
43237	The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum; he also inserts an ultrasound transducer through the scope to examine these same…	70	$150	$10.7K
99204	The provider sees a new 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 provider…	80	$110	$8.7K
99215	The provider sees an established 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…	50	$120	$6.1K
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…	60	$90	$5.2K
45385	The provider examines the colon and rectum using a colonoscope, a long, thin flexible tubular instrument with a light source and camera. He removes one or more tumors, polyps, or other lesions with a…	10	$230	$2.7K
43239	The provider inserts a flexible endoscope through the mouth and down into the esophagus, stomach, and duodenum where he removes one or more tissue biopsy specimens for diagnostic analysis.	40	$40	$1.8K
45380	The provider examines the rectum and colon using a flexible colonoscope, a tubular instrument with a light source and camera, to look for the cause of a patient's symptoms, which may include…	10	$130	$1.5K
99222	The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making or…	10	$110	$1.2K

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 9 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. California Distribution

Walter Park — 0 of 9 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

9 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
45385	1,354	1,410	60	$340	$33.9K
45380	1,414	1,460	60	$230	$23.8K
99214	25,386	37,970	120	$90	$23.2K
43239	1,076	1,500	80	$150	$17.3K
99215	7,278	15,360	50	$130	$14.4K
99204	4,508	19,360	40	$120	$7.2K
43238	3	30	30	$170	$6.9K
99222	6,989	7,350	30	$110	$5K
43237	3	40	20	$150	$4.8K

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Ira Schachar	CA	Retina Specialist (Ophthalmology) Physician	$3.9M	$4.1M
Khosrow Mehrany	CA	Specialist	$7.7M	$0
Rahul Khurana	CA	Ophthalmology Physician	$2.3M	$1.8M
James Palmer	CA	Ophthalmology Physician	$3M	$103.2K
Shelley Ghafoori	TX	Ophthalmology Physician	$2.8M	$0
Hardeep Ahluwalia	CA	Vascular Surgery Physician	$2.7M	$0
Edward Wood	TX	Ophthalmology Physician	$2.4M	$0
Aron Gould-simon	CA	Nuclear Radiology Physician	$2.3M	$0
Katrina Fischer	CA	Hematology & Oncology Physician	$2.1M	$0
Horng Bruce Lin	CA	Vascular & Interventional Radiology Physician	$1.7M	$0

Walter Park — Billing Profile & Reimbursement Data

Sign up for Walter Park — Billing Profile & Reimbursement Data policy alerts

Walter Park — Billing Profile & Reimbursement Data

Sign up for Walter Park — Billing Profile & Reimbursement Data policy alerts

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Frequently Asked Questions

References