DR. ZHEN REN MD
NPI 1982026696
Allergy & Immunology in Saint Louis, MO
About Dr. Zhen Ren Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZHEN REN MD (NPI 1982026696) is an individual allergy & immunology provider in Saint Louis, Missouri, licensed in Missouri (2017028834) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
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. Zhen Ren 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 Zhen Ren 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
- 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.
Areas of Expertise CMS Part B claims 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, 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
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 Zhen Ren's NPI number?
The NPI number for Zhen Ren is 1982026696. It was assigned to this individual provider in the NPPES registry on January 15, 2014.
Where is Zhen Ren located?
Zhen Ren practices at 1110 Highlands Plaza Dr E Div Im Allergy And Immunology, Ste 300, Saint Louis, MO 63110. The listed phone number is (314) 273-5838.
What is Zhen Ren's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Zhen Ren enrolled in Medicare?
Yes. Zhen Ren 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 Zhen Ren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zhen Ren 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 Zhen Ren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zhen Ren accept?
Health plans from Cox HealthPlans list Zhen Ren 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 Zhen Ren affiliated with any hospitals?
According to CMS data, Zhen Ren is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Zhen Ren 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.
# Dr. Zhen Ren, MD · NPI 1982026696
Allergy & Immunology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since January 15, 2014.
## Identity
- **NPI:** 1982026696 (Entity type: Individual)
- **Enumerated:** January 15, 2014
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** 2017028834 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1110 HIGHLANDS PLAZA DR E, DIV IM ALLERGY AND IMMUNOLOGY, STE 300, Saint Louis, MO 63110-1392
- **Phone:** (314) 273-5838 · **Fax:** (314) 273-5839
## 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:** Washington University (NPI 1992746903, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 200062435 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1982026696) · Data from the CMS NPPES public registry.