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Dr. Michael V. Zaretsky, MD

Maternal-Fetal Medicine (High-Risk Pregnancy) (Maternal & Fetal Medicine Physician)

13123 E 16th Ave
Aurora, CO 80045

Who else practices at this address →

Adams County includes primary care (2% of residents) shortage areas. About shortage areas

Call (303) 840-4713

At a glance

Years since graduation
29
In the NPI registry since
2006

Licensed in Texas since 1998, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1997Medical school: Northeastern Ohio University College of Medicine
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Maternal & Fetal Medicine Physician primary
    CO license DR.0052417 (first issued 2013; active) · TX license K6520 (first issued 1998; canc non-renewal)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Maternal-Fetal Medicine (High-Risk Pregnancy) per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Payments from drug and device companies

In 2025, 1 companies reported 12 payments worth $12,939 in total to this clinician.

By type
Travel and Lodging$12,597
Food and Beverage$342

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Nov 10, 2025Janssen Research & Development, LLC
Nov 10, 2025
Travel and Lodging
travel to MADRID, Spain · in-kind
$9,020
Nov 9, 2025Janssen Research & Development, LLC
Nov 9, 2025
Travel and Lodging
travel to MADRID, Spain · in-kind
$3,429
Nov 10, 2025Janssen Research & Development, LLC
Nov 10, 2025
Travel and Lodging
travel to MADRID, Spain · in-kind
$88.20
Nov 13, 2025Janssen Research & Development, LLC
Nov 13, 2025
Travel and Lodging
travel to MADRID, Spain · in-kind
$38.72
Nov 11, 2025Janssen Research & Development, LLC
Nov 11, 2025
Travel and Lodging
travel to MADRID, Spain · in-kind
$20.49

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Colorado →

Industry-funded research

Named as a principal investigator on 2 industry-funded studies in 2025, from 1 companies. The companies reported $32,000 in research payments for these studies, mostly to the institutions running them.

  • Multicenter, Open-Label, Randomized Study of Nipocalimab or IVIG in Pregnancies At Risk of Fetal and Neonatal Alloimmune Thrombocytopenia (FNAIT)
    Janssen Research & Development, LLC
  • A Phase 3 Randomized, Placebo-Controlled, Double-Blind, Multicenter Study to Evaluate the Efficacy and Safety of Nipocalimb in Pregnancies at Risk for Severe Hemolytic Disease of the Fetus and Newborn (HDFN)
    Janssen Research & Development, LLC

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Maternal-Fetal Medicine (High-Risk Pregnancy) clinicians in Aurora

Sources

NPI registry (CMS NPPES, November 2026; record last updated December 22, 2025), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1134198161. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.