DR. MARC STEPHEN POSNER M.D.
NPI 1114930211
Family Medicine in Baltimore, MD
About Dr. Marc Stephen Posner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARC STEPHEN POSNER M.D. (NPI 1114930211) is an individual family medicine provider in Baltimore, Maryland, licensed in Maryland (D19640) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through October 29, 2026, and is a graduate of University Of Maryland School Of Medicine (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Marc Stephen Posner 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 21D0216698
Marc S Posner MD PA · Baltimore, MDAreas of Expertise CMS Part B claims 4
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 21230 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21230
BALTIMORE, MD 21230
BALTIMORE, MD 21230
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 Marc Posner's NPI number?
The NPI number for Marc Posner is 1114930211. It was assigned to this individual provider in the NPPES registry on August 14, 2006.
Where is Marc Posner located?
Marc Posner practices at 1147 S Hanover St, Baltimore, MD 21230. The listed phone number is (410) 752-5425.
What is Marc Posner's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Marc Posner enrolled in Medicare?
Yes. Marc Posner 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.
Does Marc Posner hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 21D0216698) is associated with this NPI, valid through October 29, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Marc Posner was last updated on December 19, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
