Dr. Lauren Hiyama, M.D.
What this data tells you about Dr. Hiyama
Dr. Lauren Hiyama is an allergy & immunology specialist in Fresno, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hiyama performed 6,594 Medicare services across 858 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hiyama received a total of $8,783 from 26 pharmaceutical and/or device companies across 382 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in allergy & immunology. 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. Hiyama 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 |
|---|---|---|---|
| Allergy skin test A diagnostic test performed to identify specific allergies by applying or introducing allergenic extracts to the body. The procedure measures the patient's immune response to various potential allergens. |
2,456 | $3 | $9 |
| Allergy immunotherapy preparation A professional service involving the preparation and administration of one or more antigens. |
1,950 | $13 | $20 |
| Allergy injection therapy, multiple injections A professional service involving the administration of multiple allergen injections. |
957 | $9 | $35 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
399 | $66 | $133 |
| Expiratory airflow and volume test A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume. |
345 | $21 | $70 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
319 | $96 | $153 |
| Albuterol inhalation solution, 1 mg A unit dose of FDA-approved albuterol solution administered via durable medical equipment for inhalation. |
58 | $0 | $10 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
41 | $120 | $250 |
| Inhalation treatment for airway obstruction or sputum production A treatment involving the inhalation of medication to help clear airway obstructions or reduce sputum production. |
29 | $8 | $50 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
26 | $33 | $125 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
14 | $54 | $178 |
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 (80%) 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. Hiyama is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement, 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
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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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