FRANCES MAO
NPI 1932529203
Hospitalist in Philadelphia, PA
About Frances Mao NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FRANCES MAO (NPI 1932529203) is an individual hospitalist provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD458116) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
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
Frances Mao 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 Frances Mao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 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 19104 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
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.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Frances Mao's NPI number?
The NPI number for Frances Mao is 1932529203. It was assigned to this individual provider in the NPPES registry on April 24, 2014.
Where is Frances Mao located?
Frances Mao practices at 3400 Spruce St 5 Maloney, Philadelphia, PA 19104. The listed phone number is (215) 662-3797.
What is Frances Mao's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Frances Mao enrolled in Medicare?
Yes. Frances Mao 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 Frances Mao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Frances Mao reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, CA). 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 Frances Mao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Frances Mao was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Frances Mao · NPI 1932529203
Hospitalist physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 24, 2014.
## Identity
- **NPI:** 1932529203 (Entity type: Individual)
- **Enumerated:** April 24, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** MD458116 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, 5 MALONEY, Philadelphia, PA 19104-4238
- **Phone:** (215) 662-3797
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** November 29, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1932529203) · Data from the CMS NPPES public registry.