GIFFORD MEZEY MD
NPI 1831650456
Emergency Medicine in Baltimore, MD
About Gifford Mezey Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GIFFORD MEZEY MD (NPI 1831650456) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D94933) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and maintains a secondary practice location in Washington.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gifford Mezey Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gifford Mezey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Medicare enrollment name: Whc Physician Group LLC
- Also billed through NPI 1700154226 (Maryland)
- 613 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 3
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 21218 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.
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.
BALTIMORE, MD 21218
BALTIMORE, MD 21218
BALTIMORE, MD 21218
BALTIMORE, MD 21218
BALTIMORE, MD 21218
BALTIMORE, MD 21218
BALTIMORE, MD 21218
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 Gifford Mezey's NPI number?
The NPI number for Gifford Mezey is 1831650456. It was assigned to this individual provider in the NPPES registry on March 27, 2019.
Where is Gifford Mezey located?
Gifford Mezey practices at 201 E University Pkwy, Baltimore, MD 21218. The listed phone number is (410) 554-2000.
What is Gifford Mezey's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gifford Mezey enrolled in Medicare?
Yes. Gifford Mezey is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gifford Mezey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gifford Mezey reassigns Medicare benefits to Whc Emerg Phys (Washington, DC). 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 Gifford Mezey'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 Gifford Mezey was last updated on September 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Gifford Mezey, MD · NPI 1831650456
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 27, 2019.
## Identity
- **NPI:** 1831650456 (Entity type: Individual)
- **Enumerated:** March 27, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D94933 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 201 E UNIVERSITY PKWY, Baltimore, MD 21218-2829
- **Phone:** (410) 554-2000
## 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:** Whc Emerg Phys (NPI 1306260625, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 6, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1831650456) · Data from the CMS NPPES public registry.