DR. JIAHUA ZHANG DO
NPI 1841866159
Hospitalist in Saint Louis, MO
About Dr. Jiahua Zhang Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JIAHUA ZHANG DO (NPI 1841866159) is an individual hospitalist provider in Saint Louis, Missouri, licensed in Missouri (2024007823) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Touro Un College Of Osteopathic Medicine, Vallejo (2021).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Jiahua Zhang Do 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 Jiahua Zhang 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 2
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, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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 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 Jiahua Zhang's NPI number?
The NPI number for Jiahua Zhang is 1841866159. It was assigned to this individual provider in the NPPES registry on May 28, 2021.
Where is Jiahua Zhang located?
Jiahua Zhang practices at 1 Barnes Jewish Hospital Plz Div Im Hospitalist, Saint Louis, MO 63110. The listed phone number is (314) 362-1700.
What is Jiahua Zhang's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Jiahua Zhang enrolled in Medicare?
Yes. Jiahua Zhang 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 Jiahua Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jiahua Zhang 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 Jiahua Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jiahua Zhang affiliated with any hospitals?
According to CMS data, Jiahua Zhang is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Jiahua Zhang 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. Jiahua Zhang, DO · NPI 1841866159
Hospitalist physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since May 28, 2021.
## Identity
- **NPI:** 1841866159 (Entity type: Individual)
- **Enumerated:** May 28, 2021
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 2024007823 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-1700 · **Fax:** (314) 362-9878
## 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:** Touro Un College Of Osteopathic Medicine, Vallejo, class of 2021
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 200096610 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1841866159) · Data from the CMS NPPES public registry.