DR. DONALD STEVEN KARCHER MD
NPI 1154437499
Pathology - Hematology in Washington, DC
About Dr. Donald Steven Karcher Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DONALD STEVEN KARCHER MD (NPI 1154437499) is an individual hematology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD14909) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Louisiana State University School Of Medicine In New Orleans (1974).
NPPES Registry Identity
Specialties & Licenses 2
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. Donald Steven Karcher 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 Reassignment
Medicare enrollment records show Donald Karcher reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20037
- Reassigned Medicare billing, District of Columbia enrollment
- 1,275 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 10
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 20037 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.
WASHINGTON, DC 20037
WASHINGTON, DC 20037
WASHINGTON, DC 20037
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 Donald Karcher's NPI number?
The NPI number for Donald Karcher is 1154437499. It was assigned to this individual provider in the NPPES registry on August 21, 2006.
Where is Donald Karcher located?
Donald Karcher practices at 900 23rd St NW, Washington, DC 20037. The listed phone number is (202) 994-4665.
What is Donald Karcher's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Hematology, with taxonomy code 207ZH0000X.
Is Donald Karcher enrolled in Medicare?
Yes. Donald Karcher 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 Donald Karcher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Karcher reassigns Medicare benefits to Medical Faculty Associates, Inc (Washington, DC). 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 Donald Karcher'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 Donald Karcher was last updated on September 11, 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.
# Dr. Donald Steven Karcher, MD · NPI 1154437499
Hematology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since August 21, 2006.
## Identity
- **NPI:** 1154437499 (Entity type: Individual)
- **Enumerated:** August 21, 2006
- **Primary specialty:** Pathology - Hematology · taxonomy 207ZH0000X
- **State license:** MD14909 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 23RD ST NW, Washington, DC 20037-2342
- **Phone:** (202) 994-4665
## 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:** Medical Faculty Associates, Inc (NPI 1417990581, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In New Orleans, class of 1974
## Record status
- **NPPES last updated:** September 11, 2025
- **Other identifiers:** Medicaid 0114468200 (DC)
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Source: [NPI Profile](https://npiprofile.com/npi/1154437499) · Data from the CMS NPPES public registry.