DR. JESSE MEIR ZARETSKY MD PHD
NPI 1760042089
Internal Medicine - Medical Oncology in Saint Louis, MO
About Dr. Jesse Meir Zaretsky Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JESSE MEIR ZARETSKY MD PHD (NPI 1760042089) is an individual medical oncology provider in Saint Louis, Missouri, licensed in Missouri (2022036641) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Jesse Meir Zaretsky Md Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jesse Zaretsky reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63108
- Reassigned Medicare billing, Illinois enrollment
- 530 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hospital
Acute Care Hospitals · Belleville, ILBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jesse Zaretsky's NPI number?
The NPI number for Jesse Zaretsky is 1760042089. It was assigned to this individual provider in the NPPES registry on June 18, 2019.
Where is Jesse Zaretsky located?
Jesse Zaretsky practices at 4500 Forest Park Ave Div Im Medical Oncology, Ste 1B, Saint Louis, MO 63108. The listed phone number is (314) 747-1171.
What is Jesse Zaretsky's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Jesse Zaretsky enrolled in Medicare?
Yes. Jesse Zaretsky is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jesse Zaretsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jesse Zaretsky reassigns Medicare benefits to 2 organizations: Washington University Physicians In Illinois, Inc (Saint Louis, MO) and Washington University (Saint Louis, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jesse Zaretsky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jesse Zaretsky accept?
Health plans from Cox HealthPlans list Jesse Zaretsky as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Jesse Zaretsky affiliated with any hospitals?
According to CMS data, Jesse Zaretsky is affiliated with Memorial Hospital and Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Jesse Zaretsky was last updated on May 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Jesse Meir Zaretsky, MD PHD · NPI 1760042089
Medical Oncology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 18, 2019.
## Identity
- **NPI:** 1760042089 (Entity type: Individual)
- **Enumerated:** June 18, 2019
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** 2022036641 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 4500 FOREST PARK AVE, DIV IM MEDICAL ONCOLOGY, STE 1B, Saint Louis, MO 63108-2114
- **Phone:** (314) 747-1171 · **Fax:** (314) 362-7086
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Washington University Physicians In Illinois, Inc (NPI 1174015515, Saint Louis, MO); Washington University (NPI 1992746903, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** May 29, 2026
- **Other identifiers:** Medicaid 200073280 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1760042089) · Data from the CMS NPPES public registry.