DIAN LAU MD
NPI 1720085244
Anesthesiology in Philadelphia, PA
About Dian Lau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIAN LAU MD (NPI 1720085244) is an individual anesthesiology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD052887L) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dian Lau 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 Dian Lau reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19146
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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 7
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAPenn Presbyterian Medical Center
Acute Care Hospitals · Philadelphia, PAMedicare 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.
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 19146
PHILADELPHIA, PA 19146
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 Dian Lau's NPI number?
The NPI number for Dian Lau is 1720085244. It was assigned to this individual provider in the NPPES registry on June 30, 2005.
Where is Dian Lau located?
Dian Lau practices at 520 S 19th St Ste 1B, Philadelphia, PA 19146. The listed phone number is (215) 545-4173.
What is Dian Lau's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Dian Lau enrolled in Medicare?
Yes. Dian Lau 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 Dian Lau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dian Lau reassigns Medicare benefits to University Of Penn-Medical Group (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 Dian Lau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Dian Lau affiliated with any hospitals?
According to CMS data, Dian Lau is affiliated with Hospital Of Univ Of Pennsylvania and Penn Presbyterian Medical Center.
When was this NPI record last updated?
The NPPES record for Dian Lau was last updated on September 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dian Lau, MD · NPI 1720085244
Anesthesiology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 30, 2005.
## Identity
- **NPI:** 1720085244 (Entity type: Individual)
- **Enumerated:** June 30, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD052887L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 S 19TH ST, STE 1B, Philadelphia, PA 19146-1449
- **Phone:** (215) 545-4173 · **Fax:** (215) 545-1543
## 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:** University Of Penn-Medical Group (NPI 1760870893, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1991
## Record status
- **NPPES last updated:** September 9, 2015
- **Other identifiers:** Medicare UPIN G17284 (PA); Medicare ID-Type Unspecified 780285 (PA); Medicaid 6568203 (NJ); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1720085244) · Data from the CMS NPPES public registry.