RICHARD KOLKER M.D.
NPI 1780621649
Ophthalmology in Baltimore, MD
About Richard Kolker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RICHARD KOLKER M.D. (NPI 1780621649) is an individual ophthalmology provider in Baltimore, Maryland, licensed in Maryland (D08366) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Richard Kolker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Richard Kolker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 21287 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.
BALTIMORE, MD 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Richard Kolker's NPI number?
The NPI number for Richard Kolker is 1780621649. It was assigned to this individual provider in the NPPES registry on June 1, 2006.
Where is Richard Kolker located?
Richard Kolker practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-5080.
What is Richard Kolker's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Richard Kolker enrolled in Medicare?
Yes. Richard Kolker is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Richard Kolker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Kolker reassigns Medicare benefits to Johns Hopkins University (Baltimore, 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 Richard Kolker'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 Richard Kolker was last updated on February 8, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Richard Kolker, M.D. · NPI 1780621649
Ophthalmology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 1, 2006.
## Identity
- **NPI:** 1780621649 (Entity type: Individual)
- **Enumerated:** June 1, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** D08366 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE ST, Baltimore, MD 21287-0005
- **Phone:** (410) 955-5080
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Johns Hopkins University (NPI 1023018413, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 8, 2013
- **Other identifiers:** Medicaid 53291600 (MD); Medicare UPIN D76659 (MD); Medicare PIN KR84636W (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1780621649) · Data from the CMS NPPES public registry.