Medicare Enrolled
Dr. Nader Shihabi, MD
Pathology - Anatomic · Concord, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Shihabi from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Shihabi?
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What this data tells you about Dr. Shihabi
Dr. Nader Shihabi is a pathology - anatomic specialist in Concord, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Shihabi performed 4,660 Medicare services across 2,637 unique beneficiaries.
Between the years covered by Open Payments, Dr. Shihabi received a total of $614 from 6 pharmaceutical and/or device companies across 7 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. Shihabi 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.
✓ 19 years in practice
▲ Top 7% volume in CA
$614 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,660
Medicare services
Top 7% in CA for pathology - anatomic
2,637
Unique beneficiaries
$69
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~245 Medicare services per year of practice
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. |
2,960 | $69 | $207 |
| Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision | 212 | $20 | $21 |
| 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. |
198 | $102 | $265 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
189 | $34 | $150 |
| Tissue staining for diagnosis, additional An extra laboratory procedure to apply special stains to tissue slides for detailed examination. |
145 | $87 | $199 |
| 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. |
83 | $68 | $187 |
| Tissue preparation to remove calcium A laboratory procedure that removes calcium from a tissue sample to prepare it for microscopic examination. |
82 | $11 | $35 |
| Vaginal fluid RNA bacterial test A laboratory test that measures the RNA of bacteria found in a vaginal fluid specimen. |
80 | $138 | $153 |
| Pap test, manual screening A laboratory test in which a healthcare provider manually examines a sample of cells from the cervix under a microscope to check for abnormalities. |
64 | $20 | $39 |
| HPV high-risk type test for cervical cancer screening This test detects high-risk types of human papillomavirus (HPV) DNA or RNA. It is used for cervical cancer screening and must be performed in addition to a Pap test. |
58 | $34 | $39 |
| HPV high-risk type nucleic acid test A laboratory test that uses nucleic acid detection to identify high-risk types of human papillomavirus. |
56 | $34 | $119 |
| 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. |
56 | $163 | $434 |
| Trichomonas vaginalis nucleic acid test A laboratory test that uses an amplified probe technique to detect the genetic material of the Trichomonas vaginalis parasite. This method identifies the presence of the organism responsible for trichomoniasis. |
47 | $34 | $68 |
| 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. |
40 | $42 | $131 |
| Chlamydia trachomatis nucleic acid amplification test A laboratory test that uses nucleic acid amplification to detect the presence of Chlamydia trachomatis bacteria in a sample. |
39 | $34 | $75 |
| Gonorrhea nucleic acid amplification test A laboratory test that uses amplified probe techniques to detect the genetic material of gonorrhea bacteria. This method identifies the presence of the infection by analyzing nucleic acids from the sample. |
39 | $34 | $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. |
38 | $356 | $1,984 |
| Intraoperative pathology examination of specimen A pathology test performed during surgery to examine a tissue sample from the initial site. The results help guide the surgeon's immediate decisions. |
36 | $56 | $177 |
| 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. |
35 | $256 | $747 |
| Pap test A screening test to check for cervical cancer by collecting cells from the cervix. |
30 | $21 | $89 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
30 | $121 | $387 |
| Screening cytopathology smears, cervical or vaginal, performed by automated system under physician supervision | 29 | $17 | $75 |
| Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician | 27 | $28 | $39 |
| High complexity pathology tissue examination A laboratory test where a pathologist examines tissue samples under a microscope using advanced techniques to analyze cellular details. |
21 | $131 | $414 |
| 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. |
21 | $117 | $283 |
| 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 | $56 | $176 |
| 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. |
15 | $16 | $44 |
| HPV DNA test for types 16 and 18 A laboratory test that uses nucleic acid detection to identify the presence of human papillomavirus types 16 and 18. |
14 | $40 | $119 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$614
Total received (2018-2024)
Avg $123/year across 5 years
Top 20% in CA for pathology - anatomic
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
6
Companies
7
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$614 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$28
2023
$97
2022
$190
2019
$118
2018
$181
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Hologic Sales and Service, LLC
$28
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$198
Ethicon Inc.
$159
Foundation Medicine, Inc.
$101
Haemonetics Corporation
$97
AtriCure, Inc.
$32
Hologic Sales and Service, LLC
$28
Top 3 companies account for 74.5% of all-time payments
Associated products mentioned in payments ›
APTIMA · ATRICURE CRYOICE CRYOSPHERE CRYOABLATION SYSTEM · FOUNDATIONONE · N/A · TAGRISSO · TEG6S HEMOSTASIS SYSTEM
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Pathology - anatomics within 10 mi
54
Per 100K population
4.6
County median income
$125,727
Nearest hospital
JOHN MUIR MEDICAL CENTER - CONCORD CAMPUS
0.0 mi
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. Shihabi is a mixed practice specialist, with above-average Medicare volume (top 7% in CA), with low-engagement industry engagement in the top 20% of CA peers, 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
Is Dr. Shihabi experienced with tissue pathology examination, moderate complexity?
Based on Medicare claims data, Dr. Shihabi performed 2,960 tissue pathology examination, moderate complexity services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Shihabi receive payments from pharmaceutical companies?
Yes. Dr. Shihabi received a total of $614 from 6 companies across 7 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Shihabi's costs compare to other pathology - anatomics in Concord?
Dr. Shihabi's average Medicare payment per service is $69. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Shihabi) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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Which CA pathology - anatomics receive the most from drug and device companies.
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About this page
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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