DR. ANDY CHEN MD
NPI 1841870847
Obstetrics & Gynecology in Saint Louis, MO
About Dr. Andy Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDY CHEN MD (NPI 1841870847) is an individual obstetrics & gynecology provider in Saint Louis, Missouri, licensed in Missouri (2025010394) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and maintains a secondary practice location in Jersey City.
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 (PECOS)
Dr. Andy Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Andy Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63117 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 63117
SAINT LOUIS, MO 63117
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 Andy Chen's NPI number?
The NPI number for Andy Chen is 1841870847. It was assigned to this individual provider in the NPPES registry on April 13, 2021.
Where is Andy Chen located?
Andy Chen practices at 1031 Bellevue Ave, Saint Louis, MO 63117. The listed phone number is (314) 617-2000.
What is Andy Chen's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Andy Chen enrolled in Medicare?
Yes. Andy Chen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Andy Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andy Chen reassigns Medicare benefits to Ssm Health Care Group (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 Andy Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andy Chen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Andy Chen 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.
When was this NPI record last updated?
The NPPES record for Andy Chen was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. Andy Chen, MD · NPI 1841870847
Obstetrics & Gynecology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since April 13, 2021.
## Identity
- **NPI:** 1841870847 (Entity type: Individual)
- **Enumerated:** April 13, 2021
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 2025010394 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1031 BELLEVUE AVE, Saint Louis, MO 63117-1818
- **Phone:** (314) 617-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Ssm Health Care Group (NPI 1306589544, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 21, 2025
- **Other identifiers:** Medicaid 390200000X (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1841870847) · Data from the CMS NPPES public registry.