DR. MARK ALEXANDER LEBEHN M.D.
NPI 1437444643
Internal Medicine - Cardiovascular Disease in New York, NY
About Dr. Mark Alexander Lebehn M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ALEXANDER LEBEHN M.D. (NPI 1437444643) is an individual cardiovascular disease provider in New York, New York, licensed in New York (297445) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, maintains a secondary practice location in Middletown, and is a graduate of George Washington University School Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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 and accepts Medicare assignment
Dr. Mark Alexander Lebehn 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
5Medicare enrollment records show Mark Lebehn reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Middletown, NY 10940
- Reassigned Medicare billing, New York enrollment
- 226 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- 4,479 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 7
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 10032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
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 Lebehn's NPI number?
The NPI number for Mark Lebehn is 1437444643. It was assigned to this individual provider in the NPPES registry on June 15, 2011.
Where is Mark Lebehn located?
Mark Lebehn practices at 161 Fort Washington Ave, New York, NY 10032. The listed phone number is (212) 342-0444.
What is Mark Lebehn's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Mark Lebehn enrolled in Medicare?
Yes. Mark Lebehn 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 Mark Lebehn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lebehn reassigns Medicare benefits to 5 organizations: Trustees Of Columbia University In The City Of New York (New York, NY), Garnet Health Doctors PC (Middletown, NY), The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI) and Sutter Bay Medical Foundation (Sacramento, CA). 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 Mark Lebehn'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 Lebehn was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.
# Dr. Mark Alexander Lebehn, M.D. · NPI 1437444643
Cardiovascular Disease physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 15, 2011.
## Identity
- **NPI:** 1437444643 (Entity type: Individual)
- **Enumerated:** June 15, 2011
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 297445 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 161 FORT WASHINGTON AVE, New York, NY 10032-3729
- **Phone:** (212) 342-0444
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); Garnet Health Doctors PC (NPI 1093138851, Middletown, NY); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI); Sutter Bay Medical Foundation (NPI 1003267196, Sacramento, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** October 20, 2026
- **Other identifiers:** Medicaid 1437444643 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1437444643) · Data from the CMS NPPES public registry.