ROBERT LIU
NPI 1710676705
Internal Medicine in Gaithersburg, MD
About Robert Liu NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT LIU (NPI 1710676705) is an individual internal medicine provider in Gaithersburg, Maryland, licensed in Maryland (D0103287) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (2023).
NPPES Registry Identity
Specialties & Licenses 2
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)
Robert Liu is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Robert Liu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gaithersburg, MD 20879
- Reassigned Medicare billing, District of Columbia enrollment
- 2,492 clinicians in this Medicare group
Norwood, MA 02062
- Reassigned Medicare billing, Massachusetts enrollment
- 1,317 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 20879 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.
GAITHERSBURG, MD 20879
GAITHERSBURG, MD 20879
GAITHERSBURG, MD 20879
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 Robert Liu's NPI number?
The NPI number for Robert Liu is 1710676705. It was assigned to this individual provider in the NPPES registry on May 4, 2023.
Where is Robert Liu located?
Robert Liu practices at 655 Watkins Mill Rd, Gaithersburg, MD 20879. The listed phone number is (240) 632-4000.
What is Robert Liu's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Robert Liu enrolled in Medicare?
Yes. Robert Liu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Robert Liu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Liu reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Gaithersburg, MD) and Atrius Health, Inc. (Norwood, MA). 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 Robert Liu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Liu accept?
Health plans from Anthem Blue Cross and Blue Shield list Robert Liu 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 Robert Liu was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Robert Liu · NPI 1710676705
Internal Medicine physician in Gaithersburg, Maryland. Individual provider, active in the CMS NPPES registry since May 4, 2023.
## Identity
- **NPI:** 1710676705 (Entity type: Individual)
- **Enumerated:** May 4, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** D0103287 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 655 WATKINS MILL RD, Gaithersburg, MD 20879-3301
- **Phone:** (240) 632-4000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1831471713, Gaithersburg, MD); Atrius Health, Inc. (NPI 1467847632, Norwood, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** June 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1710676705) · Data from the CMS NPPES public registry.