GABY WEISSMAN M.D.
NPI 1629010285
Internal Medicine - Cardiovascular Disease in Washington, DC
About Gaby Weissman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GABY WEISSMAN M.D. (NPI 1629010285) is an individual cardiovascular disease provider in Washington, District Of Columbia, licensed in Maryland (D0064333) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Medstar Union Memorial Hospital, and is a graduate of University Of Texas Medical Branch At Galveston (1999).
NPPES Registry Identity
Specialties & Licenses
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
Gaby Weissman 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.
Medicare Billing Reassignments
3Medicare enrollment records show Gaby Weissman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 277 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 178 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 14
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Union Memorial Hospital
Acute Care Hospitals · Baltimore, MDMedstar Good Samaritan Hospital
Acute Care Hospitals · Baltimore, MDMedstar Southern Maryland Hospital Center
Acute Care Hospitals · Clinton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20010 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
Referred Medical Equipment & Supplies CMS DME claims 2
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.
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
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 Gaby Weissman's NPI number?
The NPI number for Gaby Weissman is 1629010285. It was assigned to this individual provider in the NPPES registry on June 11, 2006.
Where is Gaby Weissman located?
Gaby Weissman practices at 110 Irving St NW Rm 1063na, Washington, DC 20010. The listed phone number is (202) 877-7206.
What is Gaby Weissman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Gaby Weissman enrolled in Medicare?
Yes. Gaby Weissman 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 Gaby Weissman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gaby Weissman reassigns Medicare benefits to 3 organizations: Medstar Heart Institute LLC (Washington, DC), Medstar Medical Group II LLC (Washington, DC) and Medstar Medical Group Radiology, 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 Gaby Weissman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gaby Weissman affiliated with any hospitals?
According to CMS data, Gaby Weissman is affiliated with Medstar Union Memorial Hospital, Medstar Good Samaritan Hospital and Medstar Southern Maryland Hospital Center.
When was this NPI record last updated?
The NPPES record for Gaby Weissman was last updated on March 30, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Gaby Weissman, M.D. · NPI 1629010285
Cardiovascular Disease physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since June 11, 2006.
## Identity
- **NPI:** 1629010285 (Entity type: Individual)
- **Enumerated:** June 11, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** D0064333 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 110 IRVING ST NW, RM 1063NA, Washington, DC 20010-3017
- **Phone:** (202) 877-7206 · **Fax:** (202) 877-2247
## 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): Medstar Heart Institute LLC (NPI 1528345378, Washington, DC); Medstar Medical Group II LLC (NPI 1023836137, Washington, DC); Medstar Medical Group Radiology, LLC (NPI 1326450156, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 1999
## Record status
- **NPPES last updated:** March 30, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1629010285) · Data from the CMS NPPES public registry.