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 Pennsylvania for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Pennsylvania 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. Pennsylvania (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.

Zhiming Yang (NPI 1992051437)

Field	Value
Entity Type	Individual
Organization	Zhiming Yang
Address	794 Roble Rd
City	Allentown
State	PA
ZIP	18109
Taxonomy	Anatomic Pathology Physician
NPI Enumerated	August 2, 2012

Payer Source	Total Paid
Medicare	$4.5M
Medicaid	$0

Key Findings

This provider reports $4.5M in lifetime Medicare revenue and has no Medicaid billing on file, so Medicare entirely dominates the observable payer mix for this NPI. The absence of Medicaid activity means the provider should be treated as effectively single-payer (Medicare) for competitive and utilization analysis at this taxononomy level.

Revenue is highly concentrated: the precomputed top-three Medicare codes account for 55.6% of this provider’s Medicare revenue, driven by 87798 ($1.5M, 34.3%), 88121 ($698.5K, 16.0%), and G0416 ($231.6K, 5.3%). This concentration suggests a small number of services produce the bulk of billed dollars and should be the focus for reimbursement or contract-review efforts.

The code mix and volumes indicate an anatomic pathology practice with a heavy molecular/infectious-testing footprint and substantial cytopathology/surgical-pathology activity. High-volume amplified nucleic acid probe testing codes such as 87798 (44.1K claims), 87150 (6.7K claims), and a cluster of NAAT codes (e.g., 87556, 87640, 87651, 87653 each with multiple-thousand claim counts) point to a laboratory workflow optimized for large-scale molecular infectious-agent testing, while cytology and biopsy codes like 88121 (1.9K claims) and G0416 (762 claims) reflect pathologist-level interpretation work.

This provider is a national high-performer in several narrow services: 88121 ranks #1 of 104 providers nationally (100th percentile; labeled an "extreme outlier"), 88112 ranks #16 of 4868 (100th percentile; "extreme outlier"), G0416 ranks #15 of 2465 (99th percentile; "extreme outlier"), and 88344 ranks #24 of 1880 (99th percentile; "extreme outlier"). At the same time, some high-revenue codes like 87798 (rank #42 of 1319, 97th percentile; labeled "typical, unremarkable volume") and 88341 (rank #166 of 10274, 98th percentile; "typical, unremarkable volume") are closer to nationally typical volumes, indicating dominance in a few niche services rather than across all pathology CPTs.

Several codes are flagged as notable but not uniformly extreme: 87556 ranks #3 of 85 (98th percentile; "notably above typical national volume") and 87651 ranks #23 of 3530 (99th percentile; "extreme outlier"), showing unusually high activity for specific infectious-disease assays. These labels indicate statistical outlier status for discrete tests rather than a blanket outlier profile across the entire code set, which has implications for benchmarking and peer comparisons.

The provider’s revenue profile mixes very high-volume, low-average-paid tests with fewer, higher-paid interpretive services. Examples include high-claim, lower-paid lines such as 87798 ($34 avg paid/claim, 44.1K claims) and 87086 ($8 avg paid/claim, 8K claims) contrasted with higher-paid per-claim services like 88121 ($361 avg paid/claim) and 88120 ($502 avg paid/claim), suggesting a business model combining throughput-based laboratory testing with higher-value pathology interpretation.

Operational tenure is well-established: the NPI was enumerated on 2012-08-02 (~14 years ago), indicating the provider has been active long enough to build stable referral and testing volumes. That longevity, combined with the pattern of repetitive high-volume molecular testing, supports the interpretation of sustained specialized lab operations rather than a transient or new market entrant.

The lack of any Medicaid billing on file limits assessment of in-state payer positioning and suggests the provider either does not contract with Medicaid, bills Medicaid under a different NPI/entity, or focuses on markets and services primarily reimbursed by Medicare and other payers. For analysts focused on state Medicaid networks or dual-eligible patient flows, this provider will not appear in Medicaid utilization datasets, and competitive insights should rely on Medicare-dominant metrics instead.

Medicare: Complete Services Breakdown

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

36 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
87798	The lab analyst performs a test for an infectious agent not specified in another code using an amplified nucleic acid probe technique. Use this code if you know the laboratory technique is amplified…	44,130	$30	$1.5M
88121	The lab analyst performs a technical lab test on a urinary tract specimen using in situ hybridization and three to five molecular probes for computer assisted morphometric analysis, looking at the…	1,940	$360	$698.5K
G0416	Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	760	$300	$231.6K
87150	The lab analyst performs an analysis using amplified DNA or RNA probe technique on a previously isolated and identified organism to categorize the organism more specifically, such as to the taxonomic…	6,670	$30	$226.8K
88112	Selective cellular enhancement for cytopathology, such as the method of using a liquid–based slide preparation, uses a liquid–based medium to collect samples and preserve cells which can aid in…	4,070	$50	$219.6K
87556	The lab analyst performs a test for Mycobacterium tuberculosis using amplified nucleic acid probe technique. Mycobacteria tuberculosis are sometimes called acid fast bacteria because of the special…	3,460	$40	$141.7K
88341	The lab analyst applies an additional single antibody stain on a slide or slides prepared from the same patient specimen as the initial antibody stain, such as tumor tissue. Then a qualified…	1,670	$70	$120.4K
87563	he lab analyst performs a test on a patient specimen such as blood, for Mycoplasma genitalium antigen detection using amplified nucleic acid probe technique.	3,460	$30	$117.6K
87640	The lab analyst performs the technical lab test to look for Staphylococcus aureus nucleic acid using an amplified probe technique.	3,460	$30	$117.5K
87651	The lab analyst performs a test for the bacteria Streptococcus, group A, using amplified nucleic acid probe technique. Strep A commonly causes acute pharyngitis, or strep throat.	3,460	$30	$117.5K

Showing 1–10 of 36

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 36 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Pennsylvania Distribution

Zhiming Yang — 9 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Pennsylvania

Full comparison — all codes billed, vs. state median

36 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
87798	6	40	1,250	$30	$1.1M
87150	4	10	7,730	$30	$1M
87481	7	20	940	$30	$574.2K
87556	2	10	3,460	$40	$229.9K
88121	1	10	30	$350	$210K
87653	6	20	360	$30	$175.8K
87563	3	10	1,340	$30	$116K
87529	4	10	80	$30	$96.6K
87500	8	30	110	$30	$94.4K
87640	6	30	140	$30	$60.4K

Showing 1–10 of 36

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
The Frederick Ferris Thompson Hospital	NY	General Acute Care Hospital	$0	$23.8M
Ann Anderson	NY	Clinical Pathology/Laboratory Medicine Physician	$5.2M	$0
Iftikhar Ahmad	NY	Diagnostic Radiology Physician	$3.8M	$650.3K
Yousef Tadros	IL	Anatomic Pathology & Clinical Pathology Physician	$4.4M	$0
Michael Nagar	PA	Anatomic Pathology & Clinical Pathology Physician	$3.8M	$0
Ari Isaacson	NC	Vascular & Interventional Radiology Physician	$2.8M	$0
Aqeel Haidar	NC	Anatomic Pathology & Clinical Pathology Physician	$1.6M	$0
Michael Lambo	PA	Radiation Oncology Physician	$1.1M	$0
Michael Shriver	OH	Diagnostic Radiology Physician	$1.1M	$0
Katrina Krogh	CA	Anatomic Pathology & Clinical Pathology Physician	$1.1M	$9.9K

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Health Network Laboratories, LLC	PA	Clinical Medical Laboratory	$12.5M	$47.5M
Bayada Home Health Care, Inc.	PA	Home Health Agency	$0	$23.3M
Haven House	PA	Adult Mental Health Clinic/Center	$0	$10.6M
Gong Feng	PA	Anatomic Pathology & Clinical Pathology Physician	$95.2K	$0
Winfred Ferolin	PA	Physical Therapist	$86.4K	$0
Chau Nguyen	PA	Family Medicine Physician	$46.3K	$0

Zhiming Yang — Billing Profile & Reimbursement Data

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Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References