Dr. Huifang Zhou, MD, PHD
What this data tells you about Dr. Zhou
Dr. Huifang Zhou is a pathology - anatomic specialist in Chico, CA, with 9 years of NPI registration. Based on federal Medicare data, Dr. Zhou performed 5,925 Medicare services across 3,251 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zhou received a total of $55 from 3 pharmaceutical and/or device companies across 3 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in pathology - anatomic. 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. Zhou 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 |
|---|---|---|---|
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
2,673 | $36 | $124 |
| Tissue staining for diagnosis, additional An extra laboratory procedure to apply special stains to tissue slides for detailed examination. |
1,138 | $33 | $72 |
| Tissue staining for diagnosis, initial A laboratory test where special stains are applied to tissue slides to help examine the cells and identify specific characteristics. |
479 | $44 | $96 |
| Moderately high complexity pathology tissue examination A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This specific level of complexity involves a moderate to high degree of technical skill and interpretation. |
214 | $70 | $168 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
190 | $79 | $170 |
| Cell examination with selective cellular enhancement A laboratory test that examines cells from a specimen using a technique to selectively enhance specific cellular features for detailed analysis. |
163 | $25 | $93 |
| Fine needle aspirate evaluation and report A pathologist examines cells collected via a fine needle aspiration and provides a written interpretation and report of the findings. |
143 | $61 | $134 |
| Special tissue stain, multiplex A laboratory procedure using special stains to examine tissue samples. This multiplex technique allows for the analysis of multiple markers on a single slide. |
121 | $65 | $135 |
| Pathology tissue examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to identify abnormalities. This specific level indicates a moderate degree of complexity in the analysis. |
112 | $13 | $48 |
| Special stain test for organisms A laboratory test using special stains on tissue slides to identify microorganisms. The process includes the technical preparation of the slides and a professional interpretation of the results. |
95 | $42 | $76 |
| Special tissue stain and interpretation A laboratory test using special stains to examine tissue samples, including the pathologist's review and written report of the findings. |
95 | $14 | $46 |
| Fine needle aspirate evaluation A laboratory examination of cells collected via fine needle aspiration to assess for abnormalities. |
71 | $28 | $65 |
| Tissue preparation to remove calcium A laboratory procedure that removes calcium from a tissue sample to prepare it for microscopic examination. |
67 | $11 | $27 |
| Genetic analysis of archival tissue Testing stored tissue samples to identify genetic information. This procedure analyzes existing tissue specimens for genetic markers. |
64 | $19 | $75 |
| Prostate needle biopsy pathology exam Laboratory examination of prostate tissue samples obtained via needle biopsy. The pathologist inspects the tissue both visually and under a microscope to identify any abnormalities. |
52 | $211 | $624 |
| Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician | 46 | $24 | $55 |
| Automated cervical cancer screening with manual review A cervical or vaginal sample is prepared using an automated thin-layer system. The sample is screened by an automated system and then manually rescreened under physician supervision. |
46 | $26 | $65 |
| Pap test A screening test to check for cervical cancer by collecting cells from the cervix. |
33 | $19 | $55 |
| Automated Pap test with manual rescreening A cervical cancer screening test using an automated system to prepare the sample, followed by a manual review to check for abnormalities. |
32 | $26 | $65 |
| Limited pathology tissue examination A microscopic examination of tissue samples to identify abnormalities. This limited exam focuses on specific aspects of the tissue rather than a comprehensive analysis. |
29 | $3 | $13 |
| Computer-assisted genetic tissue analysis A microscopic genetic analysis of tissue using computer-assisted technology for the initial multiplex procedure. |
23 | $35 | $75 |
| Additional manual multiplex genetic stain A microscopic genetic analysis performed manually using an additional multiplex stain procedure on tissue. |
23 | $52 | $115 |
| Intraoperative pathology examination, first tissue block A pathologist examines a tissue sample removed during surgery to provide a preliminary diagnosis. This test is performed on the first tissue block obtained from the procedure. |
16 | $51 | $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 (2018-2024) ›
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
0.0 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. Zhou is a mixed practice specialist, with above-average Medicare volume (top 5% in CA), with low-engagement industry engagement.
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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