DR. LAISHANG PETER ZHANG M.D.
NPI 1235143942
Psychiatry & Neurology - Psychiatry in Festus, MO
About Dr. Laishang Peter Zhang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAISHANG PETER ZHANG M.D. (NPI 1235143942) is an individual psychiatry provider in Festus, Missouri, licensed in Missouri (2002028080) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Gateway Regional Medical Center, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Dr. Laishang Peter Zhang M.d. 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
11Medicare enrollment records show Laishang Zhang reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Festus, MO 63028
- Reassigned Medicare billing, Missouri enrollment
- 299 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Anthonys Physician Organization Hospitalist Services Lc
- 340 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 28 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 24 clinicians in this Medicare group
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 263 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 261 clinicians in this Medicare group
Steelville, MO 65565
- Reassigned Medicare billing, Missouri enrollment
- 1,487 clinicians in this Medicare group
Carthage, MO 64836
- Reassigned Medicare billing, Missouri enrollment
- 562 clinicians in this Medicare group
Ada, OK 74820
- Reassigned Medicare billing, Missouri enrollment
- 2 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 6
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.
Gateway Regional Medical Center
Acute Care Hospitals · Granite City, ILMercy Hospital Joplin
Acute Care Hospitals · Joplin, MOSsm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOMercy Hospital Springfield
Acute Care Hospitals · Springfield, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63028 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.
FESTUS, MO 63028
FESTUS, MO 63028
FESTUS, MO 63028
FESTUS, MO 63028
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 Laishang Zhang's NPI number?
The NPI number for Laishang Zhang is 1235143942. It was assigned to this individual provider in the NPPES registry on July 28, 2006. The provider is also known as Dr. L. Peter Zhang M.D..
Where is Laishang Zhang located?
Laishang Zhang practices at 1400 Us Highway 61, Festus, MO 63028. The listed phone number is (314) 251-6663.
What is Laishang Zhang's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Laishang Zhang enrolled in Medicare?
Yes. Laishang 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 Laishang Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Laishang Zhang reassigns Medicare benefits to 11 organizations: Mercy Clinic Adult Hospitalists- Jefferson, LLC (Festus, MO), St Anthonys Physician Organization Hospitalist Services, L.C. (Saint Louis, MO), Mercy East Support Services, LLC (Saint Louis, MO), Mercy Clinic Adult Hospitalists - St. Louis, LLC (Saint Louis, MO), Clinical Research Associates, PC (Saint Louis, MO) and 6 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 Laishang Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Laishang Zhang accept?
Health plans from Anthem Blue Cross and Blue Shield, Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Cigna Healthcare and Medica list Laishang 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 Laishang Zhang affiliated with any hospitals?
According to CMS data, Laishang Zhang is affiliated with Gateway Regional Medical Center, Mercy Hospital Joplin, Ssm St Joseph Health Center, Mercy Hospital Springfield and Ssm Health St Mary's Hospital - St Louis.
When was this NPI record last updated?
The NPPES record for Laishang Zhang was last updated on October 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Laishang Peter Zhang, M.D. · NPI 1235143942
Psychiatry physician in Festus, Missouri. Individual provider, active in the CMS NPPES registry since July 28, 2006.
## Identity
- **NPI:** 1235143942 (Entity type: Individual)
- **Enumerated:** July 28, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 2002028080 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1400 US HIGHWAY 61, Festus, MO 63028-4100
- **Phone:** (314) 251-6663
## 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:** 11 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Adult Hospitalists- Jefferson, LLC (NPI 1083052492, Festus, MO); St Anthonys Physician Organization Hospitalist Services, L.C. (NPI 1407216336, Saint Louis, MO); Mercy East Support Services, LLC (NPI 1225382013, Saint Louis, MO); Mercy Clinic Adult Hospitalists - St. Louis, LLC (NPI 1841235108, Saint Louis, MO); Clinical Research Associates, PC (NPI 1063632826, Saint Louis, MO); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** October 22, 2024
- **Other identifiers:** Medicaid 208324806 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1235143942) · Data from the CMS NPPES public registry.