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DR. MICHAEL ERNEST KORCHAK M.D.
NPI 1750647186
Ophthalmology - Cornea and External Diseases Specialist in Upper Marlboro, MD

Active since April 10, 2012PECOS EnrolledAccepts Medicare Assignment
1221 MERCANTILE LN, UPPER MARLBORO, MD 20774(301) 618-5500 Get Directions Write a Review

NPPES record last updated: June 23, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 23, 2021, Mar 16, 2016 (2 updates tracked since 2016).

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

NPI1750647186
Entity TypeIndividualMale
Primary Taxonomy207WX0120X
Provider Legal NameDR. MICHAEL ERNEST KORCHAKCredential: M.D.
Location Address1221 MERCANTILE LNUpper Marlboro, MD 20774-5374
Mailing Address1035 N Kensington StArlington, VA 22205-2337 · (917) 373-9666
Phone(301) 618-5500
Sole ProprietorYes
Medical School CMSGeorgetown University School Of MedicineGraduated 2012
Enumeration DateApril 10, 2012
Last NPPES UpdateJune 23, 20212 updates tracked since enumeration
NPPES CertifiedJune 23, 2021
✔ NPI 1750647186 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Cornea and External Diseases SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0120X
License✔ Licensed in MD · D83188
Definition
An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye.
Also ListedOphthalmologyTaxonomy 207W00000X · License 283240 (NY)
1221 MERCANTILE LN, Upper Marlboro, MD 20774
Open in Google Maps ↗

Secondary Practice Location 1

Location 11305 York Ave, Floor 11New York, NY 10021-5663 · Phone (646) 962-5458 · Fax (646) 962-0609

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. 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.

PECOS PAC ID4587956602
PECOS Enrollment IDI20170912000876
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. EARL JOHN D MAURICIO M.D.
Psychiatry & Neurology (Psychiatry)
1221 MERCANTILE LN
LARGO, MD 20774
Prince George's County (301) 386-6800
DR. ENYINNAYA ROSE NWANERI M.D.,M.P.H.
Anesthesiology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774
Prince George's County (301) 395-2074
DR. LYNN ANETTA THOMAS MD
Internal Medicine
1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774
Prince George's County (301) 618-5500
DR. VIRGIL LEE GRAHAM MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1221 MERCANTILE LN, DEPT OF OBGYN
LARGO, MD 20774
Prince George's County (301) 618-5578
SASHA ROCHELLE JARRETT MD
Anesthesiology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774
Prince George's County (301) 456-4368
FELICIA C ELVIS PA
Physician Assistant
1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774
Prince George's County (301) 618-5500
MOHAMED A ATALLA M.D.
Urology
1221 MERCANTILE LN, KAISER PERMANENTE DEPARTMENT OF UROLOGY
LARGO, MD 20774
Prince George's County (301) 618-5500
TINA MUSA
Obstetrics & Gynecology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774
Prince George's County (301) 618-5500

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.

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.