DR. MACY LIEU DNP
NPI 1003214503
Nurse Practitioner - Family in Oakland, CA
About Dr. Macy Lieu Dnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MACY LIEU DNP (NPI 1003214503) is an individual family provider in Oakland, California, licensed in California (95001977) and active in the NPI registry since December 2014. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 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
Dr. Macy Lieu Dnp 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
3Medicare enrollment records show Macy Lieu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oakland, CA 94607
- Reassigned Medicare billing, California enrollment
- 130 clinicians in this Medicare group
San Francisco, CA 94105
- Reassigned Medicare billing, California enrollment
- 178 clinicians in this Medicare group
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94607 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
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 Macy Lieu's NPI number?
The NPI number for Macy Lieu is 1003214503. It was assigned to this individual provider in the NPPES registry on December 15, 2014. The provider is also known as Dr. Macy Lieu Dnp.
Where is Macy Lieu located?
Macy Lieu practices at 818 Webster St, Oakland, CA 94607. The listed phone number is (510) 986-6800.
What is Macy Lieu's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Macy Lieu enrolled in Medicare?
Yes. Macy Lieu 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 Macy Lieu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Macy Lieu reassigns Medicare benefits to 3 organizations: Asian Health Services (Oakland, CA), Circle Medical Care Of California (San Francisco, CA) and John Muir Physician Network (Walnut Creek, CA). 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 Macy Lieu'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 Macy Lieu was last updated on June 6, 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. Macy Lieu, DNP · NPI 1003214503
Family physician in Oakland, California. Individual provider, active in the CMS NPPES registry since December 15, 2014.
## Identity
- **NPI:** 1003214503 (Entity type: Individual)
- **Enumerated:** December 15, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95001977 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 818 WEBSTER ST, Oakland, CA 94607-4220
- **Phone:** (510) 986-6800
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Asian Health Services (NPI 1841331402, Oakland, CA); Circle Medical Care Of California (NPI 1134596091, San Francisco, CA); John Muir Physician Network (NPI 1841407665, Walnut Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 6, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1003214503) · Data from the CMS NPPES public registry.