DR. MARK D. KLAIMAN M.D.
NPI 1881698488
Specialist in Bethesda, MD
About Dr. Mark D. Klaiman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK D. KLAIMAN M.D. (NPI 1881698488) is an individual specialist in Bethesda, Maryland, licensed in Maryland (MD31062) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark D. Klaiman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Klaiman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bethesda, MD 20817
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Mark D. Klaiman, M.D., L.C.
- 17 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 27
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.
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
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BETHESDA, MD 20817
BETHESDA, MD 20817
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 Mark Klaiman's NPI number?
The NPI number for Mark Klaiman is 1881698488. It was assigned to this individual provider in the NPPES registry on June 10, 2005.
Where is Mark Klaiman located?
Mark Klaiman practices at 6400 Goldsboro Rd Ste 340, Bethesda, MD 20817. The listed phone number is (301) 493-8884.
What is Mark Klaiman's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Mark Klaiman enrolled in Medicare?
Yes. Mark Klaiman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Klaiman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Klaiman reassigns Medicare benefits to Mark D. Klaiman, M.D., L.C. Pt (Bethesda, MD). 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 Mark Klaiman'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 Mark Klaiman was last updated on July 21, 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.