JOANNA GAO MD
NPI 1548896566
Obstetrics & Gynecology in Philadelphia, PA
About Joanna Gao Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA GAO MD (NPI 1548896566) is an individual obstetrics & gynecology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD485518) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Thomas Jefferson University Hospital, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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
Joanna Gao 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 Joanna Gao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
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 Joanna Gao's NPI number?
The NPI number for Joanna Gao is 1548896566. It was assigned to this individual provider in the NPPES registry on March 21, 2020.
Where is Joanna Gao located?
Joanna Gao practices at 833 Chestnut St, Philadelphia, PA 19107. The listed phone number is (215) 955-5000.
What is Joanna Gao's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Joanna Gao enrolled in Medicare?
Yes. Joanna Gao 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 Joanna Gao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Gao reassigns Medicare benefits to Jefferson University Physicians (Philadelphia, PA). 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 Joanna Gao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joanna Gao accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Joanna Gao 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 Joanna Gao affiliated with any hospitals?
According to CMS data, Joanna Gao is affiliated with Thomas Jefferson University Hospital.
When was this NPI record last updated?
The NPPES record for Joanna Gao was last updated on September 16, 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.
# Joanna Gao, MD · NPI 1548896566
Obstetrics & Gynecology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 21, 2020.
## Identity
- **NPI:** 1548896566 (Entity type: Individual)
- **Enumerated:** March 21, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD485518 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 833 CHESTNUT ST, Philadelphia, PA 19107-4414
- **Phone:** (215) 955-5000
## 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:** Jefferson University Physicians (NPI 1326093675, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** September 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1548896566) · Data from the CMS NPPES public registry.