DR. MICHAEL ERNEST KORCHAK M.D.
NPI 1750647186
Ophthalmology - Cornea and External Diseases Specialist in Upper Marlboro, MD
About Dr. Michael Ernest Korchak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL ERNEST KORCHAK M.D. (NPI 1750647186) is an individual cornea and external diseases specialist in Upper Marlboro, Maryland, licensed in Maryland (D83188) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Georgetown University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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. Michael Ernest Korchak 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 Reassignment
Medicare enrollment records show Michael Korchak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Suitland, MD 20746
- Reassigned Medicare billing, District of Columbia, Maryland and Virginia enrollments
- Also billed through NPI 1285752121 (Maryland), NPI 1942546486 (Maryland), NPI 1972275196 (Virginia), NPI 1114677572 (Virginia), NPI 1457023616 (Maryland)
- 2,492 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 20774 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.
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
LARGO, MD 20774
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 Korchak's NPI number?
The NPI number for Michael Korchak is 1750647186. It was assigned to this individual provider in the NPPES registry on April 10, 2012.
Where is Michael Korchak located?
Michael Korchak practices at 1221 Mercantile Ln, Upper Marlboro, MD 20774. The listed phone number is (301) 618-5500.
What is Michael Korchak's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.
Is Michael Korchak enrolled in Medicare?
Yes. Michael Korchak 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 organization bills Medicare for Michael Korchak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Korchak reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Suitland, 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 Korchak'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 Korchak was last updated on June 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Michael Ernest Korchak, M.D. · NPI 1750647186
Cornea and External Diseases Specialist physician in Upper Marlboro, Maryland. Individual provider, active in the CMS NPPES registry since April 10, 2012.
## Identity
- **NPI:** 1750647186 (Entity type: Individual)
- **Enumerated:** April 10, 2012
- **Primary specialty:** Ophthalmology - Cornea and External Diseases Specialist · taxonomy 207WX0120X
- **State license:** D83188 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1221 MERCANTILE LN, Upper Marlboro, MD 20774-5374
- **Phone:** (301) 618-5500
## 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:** Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1730200965, Suitland, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** June 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1750647186) · Data from the CMS NPPES public registry.