DR. JOOYOUNG MAENG MD
NPI 1578094231
Anesthesiology - Pain Medicine in Saint Louis, MO
About Dr. Jooyoung Maeng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOOYOUNG MAENG MD (NPI 1578094231) is an individual pain medicine provider in Saint Louis, Missouri, licensed in Missouri (2019022752) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of Indiana University School Of Medicine (2017).
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. Jooyoung Maeng Md 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 Reassignment
Medicare enrollment records show Jooyoung Maeng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 405 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.
Areas of Expertise CMS Part B claims 20
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hospital
Acute Care Hospitals · Belleville, ILMercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOBarnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Jooyoung Maeng's NPI number?
The NPI number for Jooyoung Maeng is 1578094231. It was assigned to this individual provider in the NPPES registry on March 24, 2017.
Where is Jooyoung Maeng located?
Jooyoung Maeng practices at 4921 Parkview Pl Dept Anesthesiology, Ste 14C, Saint Louis, MO 63110. The listed phone number is (314) 362-8820.
What is Jooyoung Maeng's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.
Is Jooyoung Maeng enrolled in Medicare?
Yes. Jooyoung Maeng 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 organization bills Medicare for Jooyoung Maeng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jooyoung Maeng reassigns Medicare benefits to Washington University (Saint Louis, MO). The 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 Jooyoung Maeng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jooyoung Maeng accept?
Health plans from Cox HealthPlans list Jooyoung Maeng 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 Jooyoung Maeng affiliated with any hospitals?
According to CMS data, Jooyoung Maeng is affiliated with Memorial Hospital, Mercy Hospital St Louis, Barnes Jewish Hospital, Missouri Baptist Medical Center and Barnes-Jewish West County Hospital.
When was this NPI record last updated?
The NPPES record for Jooyoung Maeng was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.