TIANNAN ZHANG
NPI 1578096541
Internal Medicine in New Orleans, LA
About Tiannan Zhang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIANNAN ZHANG (NPI 1578096541) is an individual internal medicine provider in New Orleans, Louisiana, licensed in Louisiana (334953) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital, and maintains a secondary practice location in Biddeford.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Tiannan Zhang 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
7Medicare enrollment records show Tiannan Zhang reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Humble, TX 77338
- Reassigned Medicare billing, Texas enrollment
- 2,009 clinicians in this Medicare group
Huntsville, TX 77340
- Reassigned Medicare billing, Texas enrollment
- 44 clinicians in this Medicare group
Gadsden, AL 35901
- Reassigned Medicare billing, Alabama enrollment
- 15 clinicians in this Medicare group
Dallas, TX 75231
- Reassigned Medicare billing, Texas enrollment
- 1,208 clinicians in this Medicare group
Corpus Christi, TX 78411
- Reassigned Medicare billing, Texas enrollment
- 29 clinicians in this Medicare group
San Antonio, TX 78216
- Reassigned Medicare billing, Texas enrollment
- 688 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 681 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 4
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Methodist Hospital
Acute Care Hospitals · San Antonio, TXHill Country Memorial Hospital
Acute Care Hospitals · Fredericksburg, TXCorpus Christi Medical Center,the
Acute Care Hospitals · Corpus Christi, TXMethodist Hospital Stone Oak
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70121 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
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 Tiannan Zhang's NPI number?
The NPI number for Tiannan Zhang is 1578096541. It was assigned to this individual provider in the NPPES registry on April 6, 2017.
Where is Tiannan Zhang located?
Tiannan Zhang practices at 1514 Jefferson Hwy, New Orleans, LA 70121. The listed phone number is (504) 842-7511.
What is Tiannan Zhang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tiannan Zhang enrolled in Medicare?
Yes. Tiannan 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 organizations bill Medicare for Tiannan Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tiannan Zhang reassigns Medicare benefits to 7 organizations: Hospitalist Medicine Physicians Of Texas, PLLC (Humble, TX), Hha Hospital Medicine Of Texas PLLC (Huntsville, TX), Hss Hospital Medicine, LLC (Gadsden, AL), Cogent Healthcare Of Texas, PA (Dallas, TX), Corpus Christi Hospitalists, PLLC (Corpus Christi, TX) and 2 more organizations, listed in the Medicare section above. 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 Tiannan Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tiannan Zhang accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and UnitedHealthcare list Tiannan Zhang 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 Tiannan Zhang affiliated with any hospitals?
According to CMS data, Tiannan Zhang is affiliated with Methodist Hospital, Hill Country Memorial Hospital, Corpus Christi Medical Center,the and Methodist Hospital Stone Oak.
When was this NPI record last updated?
The NPPES record for Tiannan Zhang was last updated on May 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Tiannan Zhang · NPI 1578096541
Internal Medicine physician in New Orleans, Louisiana. Individual provider, active in the CMS NPPES registry since April 6, 2017.
## Identity
- **NPI:** 1578096541 (Entity type: Individual)
- **Enumerated:** April 6, 2017
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 334953 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1514 JEFFERSON HWY, New Orleans, LA 70121-2429
- **Phone:** (504) 842-7511 · **Fax:** (504) 842-2644
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Hospitalist Medicine Physicians Of Texas, PLLC (NPI 1629307095, Humble, TX); Hha Hospital Medicine Of Texas PLLC (NPI 1083489967, Huntsville, TX); Hss Hospital Medicine, LLC (NPI 1457209868, Gadsden, AL); Cogent Healthcare Of Texas, PA (NPI 1992722953, Dallas, TX); Corpus Christi Hospitalists, PLLC (NPI 1518052190, Corpus Christi, TX); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City College Of Medicine And Surgery, class of 2017
## Record status
- **NPPES last updated:** May 6, 2023
- **Other identifiers:** Medicaid 417867502 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1578096541) · Data from the CMS NPPES public registry.