MICHAEL DAVID LEWEN MD
NPI 1861830119
Ophthalmology - Retina Specialist in Pittsburgh, PA
About Michael David Lewen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL DAVID LEWEN MD (NPI 1861830119) is an individual retina specialist in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD466664) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Allegheny General Hospital, and maintains a secondary practice location in Pittsburgh.
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
Michael David Lewen Md 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
6Medicare enrollment records show Michael Lewen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15212
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,881 clinicians in this Medicare group
Pittsburgh, PA 15212
- Reassigned Medicare billing, Pennsylvania enrollment
- 8 clinicians in this Medicare group
Pittsburgh, PA 15220
- Reassigned Medicare billing, Pennsylvania enrollment
- 17 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 281 clinicians in this Medicare group
Peabody, MA 01960
- Reassigned Medicare billing, Massachusetts enrollment
- 1,841 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 11
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Allegheny General Hospital
Acute Care Hospitals · Pittsburgh, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15212 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PITTSBURGH, PA 15212
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 Lewen's NPI number?
The NPI number for Michael Lewen is 1861830119. It was assigned to this individual provider in the NPPES registry on June 10, 2013.
Where is Michael Lewen located?
Michael Lewen practices at 420 E North Ave Ste 116, Pittsburgh, PA 15212. The listed phone number is (412) 359-6300.
What is Michael Lewen's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.
Is Michael Lewen enrolled in Medicare?
Yes. Michael Lewen 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 Michael Lewen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Lewen reassigns Medicare benefits to 6 organizations: Allegheny Clinic (Pittsburgh, PA), Allegheny Ophthalmic & Orbital Associates (Pittsburgh, PA), Alexander Chang MD PC (Pittsburgh, PA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and 1 more organization, listed in the Medicare section above. 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 Michael Lewen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Lewen affiliated with any hospitals?
According to CMS data, Michael Lewen is affiliated with Allegheny General Hospital.
When was this NPI record last updated?
The NPPES record for Michael Lewen was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.