DR. DONALD STEVEN KARCHER MD
NPI 1154437499
Pathology - Hematology in Washington, DC

Active since August 21, 2006PECOS EnrolledAccepts Medicare Assignment
900 23RD ST NW, WASHINGTON, DC 20037(202) 994-4665 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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

NPI1154437499
Entity TypeIndividualMale
Primary Taxonomy207ZH0000X
Provider Legal NameDR. DONALD STEVEN KARCHERCredential: MD
Location Address900 23RD ST NWWashington, DC 20037-2342
Mailing Address900 23rd St NwWashington, DC 20037-2342 · (202) 994-4665
Sole ProprietorNo
Medical School CMSLouisiana State University School Of Medicine In New OrleansGraduated 1974
Enumeration DateAugust 21, 2006
Last NPPES UpdateSeptember 11, 2025
NPI 1154437499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPathology · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZH0000X
License Licensed in DC · MD14909
Definition
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders.
Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X · License MD14909 (DC)
900 23RD ST NW, Washington, DC 20037

Other Identifiers 1

Medicaid0114468200DC

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. 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.

PECOS PAC ID1052507019
PECOS Enrollment IDI20101202000437
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.

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.

Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
234 services29 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
32 services31 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
31 services30 patients
Bone marrow, smear interpretation 85097
Bone marrow smear interpretation is a procedure where a small sample of your bone marrow is taken and examined under a microscope. This helps doctors identify any abnormal cells or signs of diseases such as anemia, leukemia, or infections. It's a crucial step in diagnosing various blood disorders.
26 services25 patients
Preparation of tissue for examination by removing any calcium present 88311
This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.
26 services25 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
23 services16 patients

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.

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
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
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.

Internal Medicine
900 23RD ST NW
WASHINGTON, DC 20037
Student in an Organized Health Care Education/Training Program
900 23RD ST NW
WASHINGTON, DC 20037
Anesthesiology
900 23RD ST NW
WASHINGTON, DC 20037
Physician Assistant (Surgical)
900 23RD ST NW
WASHINGTON, DC 20037
Student in an Organized Health Care Education/Training Program
900 23RD ST NW
WASHINGTON, DC 20037
Emergency Medicine
900 23RD ST NW
WASHINGTON, DC 20037
Physician Assistant
900 23RD ST NW
WASHINGTON, DC 20037
Physician Assistant
900 23RD ST NW
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.

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 10 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.