MR. MICHAEL ELIHU KLEIN M.D.
NPI 1073516415
Internal Medicine in Jarrettsville, MD
About Mr. Michael Elihu Klein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MICHAEL ELIHU KLEIN M.D. (NPI 1073516415) is an individual internal medicine provider in Jarrettsville, Maryland, licensed in Maryland (D17515) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Michael Elihu Klein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Klein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Frederick, MD 21701
- Reassigned Medicare billing, District of Columbia enrollment
- 204 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21084 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Michael Klein's NPI number?
The NPI number for Michael Klein is 1073516415. It was assigned to this individual provider in the NPPES registry on May 31, 2005.
Where is Michael Klein located?
Michael Klein practices at 3714 Norrisville Road, Jarrettsville, MD 21084. The listed phone number is (410) 504-9511.
What is Michael Klein's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Michael Klein enrolled in Medicare?
Yes. Michael Klein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Klein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Klein reassigns Medicare benefits to Hospitalist Medicine Physicians Of Maryland PC (Frederick, 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 Michael Klein'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 Michael Klein 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.