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LOUIS MARC WEINER M.D.
NPI 1205859931
Specialist in Washington, DC

Active since July 25, 2006PECOS EnrolledAccepts Medicare Assignment
79.12/100
CMS Quality Rating
3970 RESERVOIR RD NW, LCCC GEORGETOWN UNIVERSITY MEDICAL CENTER ROOM E501, WASHINGTON, DC 20007(202) 687-2110(202) 687-6402 Get Directions Write a Review

NPPES record last updated: August 4, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Louis Marc Weiner M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LOUIS MARC WEINER M.D. (NPI 1205859931) is an individual specialist in Washington, District Of Columbia, licensed in Pennsylvania (MD031312E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1977).

NPPES Registry Identity

NPI1205859931
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameLOUIS MARC WEINERCredential: M.D.
Location Address3970 RESERVOIR RD NW, LCCC GEORGETOWN UNIVERSITY MEDICAL CENTER ROOM E501Washington, DC 20007-2126
Mailing Address3970 Reservoir Rd Nw, Lccc Georgetown University Medical Center Room E501Washington, DC 20007-2126 · (202) 687-2110 · Fax (202) 687-6402
Phone(202) 687-2110
Fax(202) 687-6402
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1977
Enumeration DateJuly 25, 2006
Last NPPES UpdateAugust 4, 2010
✔ NPI 1205859931 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in PA · MD031312E
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
3970 RESERVOIR RD NW, Washington, DC 20007
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINC30750PA
Medicare PIN158629YTFDC

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

Louis Marc Weiner M.d. 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.

PECOS PAC ID9830248459
PECOS Enrollment IDI20090601000162
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Louis Weiner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medstar Georgetown Medical Center, Inc
0.2 mi
Internal Medicine
3800 RESERVOIR RD NW
Washington, DC 20007
  • Reassigned Medicare billing, District of Columbia enrollment
  • 38 clinicians in this Medicare group
NPI 1285636522 (888) 896-1400
Medstar Medical Group II LLC
0.2 mi
Critical Care Medicine
3800 RESERVOIR RD NW
Washington, DC 20007
  • Reassigned Medicare billing, District of Columbia enrollment
  • 3,530 clinicians in this Medicare group
NPI 1205562816 (703) 558-1403

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

79.12/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.12
Promoting Interoperability100
Improvement Activities40
Cost50.02

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. GEOFFREY T GIBNEY MD
Internal Medicine
3970 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-7064

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 Louis Weiner's NPI number?

The NPI number for Louis Weiner is 1205859931. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is Louis Weiner located?

Louis Weiner practices at 3970 Reservoir Rd NW Lccc Georgetown University Medical Center Room E501, Washington, DC 20007. The listed phone number is (202) 687-2110.

What is Louis Weiner's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Louis Weiner enrolled in Medicare?

Yes. Louis Weiner 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 Louis Weiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Weiner reassigns Medicare benefits to 2 organizations: Medstar Georgetown Medical Center, Inc (Washington, DC) and Medstar Medical Group II LLC (Washington, DC). 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 Louis Weiner'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 Louis Weiner was last updated on August 4, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.