Dr. Zoya Preys, M.D.
What this data tells you about Dr. Preys
Dr. Zoya Preys is an obstetrics & gynecology specialist in Los Angeles, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Preys performed 2,020 Medicare services across 1,873 unique beneficiaries.
Between the years covered by Open Payments, Dr. Preys received a total of $2,062 from 33 pharmaceutical and/or device companies across 98 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in obstetrics & gynecology. 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. Preys 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 |
|---|---|---|---|
| Transvaginal pelvic ultrasound An ultrasound exam using a probe inserted into the vagina to image the uterus, ovaries, fallopian tubes, cervix, and surrounding pelvic structures. |
378 | $110 | $430 |
| HPV high-risk type nucleic acid test A laboratory test that uses nucleic acid detection to identify high-risk types of human papillomavirus. |
279 | $34 | $120 |
| Pap smear screening test A screening test to collect and prepare a cervical or vaginal sample for laboratory analysis. |
247 | $49 | $153 |
| Pelvic and clinical breast exam for cancer screening A physical examination of the pelvis and breasts to screen for cervical or vaginal cancer. This procedure involves a clinical assessment performed by a healthcare provider. |
246 | $43 | $128 |
| 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. |
235 | $110 | $360 |
| 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. |
95 | $78 | $244 |
| 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. |
91 | $140 | $545 |
| 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. |
69 | $34 | $120 |
| Vaginal fluid DNA test for bacteria A laboratory test that analyzes DNA from bacteria found in a vaginal fluid specimen. |
68 | $258 | $450 |
| 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. |
68 | $34 | $120 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
66 | $154 | $483 |
| New patient office visit, complex (60-74 min) | 44 | $188 | $684 |
| Vaginal irrigation and drug application for infection This procedure involves flushing the vagina with fluid and applying medication to treat an infection. |
30 | $30 | $152 |
| Fitting and insertion of vaginal support device A procedure to measure, fit, and insert a device designed to support vaginal structures. |
30 | $64 | $105 |
| Endometrial biopsy or polyp removal A procedure to collect a tissue sample from the uterine lining or remove a polyp using a thin, lighted tube inserted through the cervix. |
23 | $1,251 | $4,811 |
| 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. |
22 | $34 | $120 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
18 | $3 | $20 |
| 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. |
11 | $40 | $120 |
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 (96%) 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. Preys is a clinical cardiology specialist, with above-average Medicare volume (top 3% in CA), 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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