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MARYLAND ONCOLOGY HEMATOLOGY, PA
NPI 1285500322
Internal Medicine - Hematology & Oncology in Olney, MD

Active since October 15, 2025CLIA 21D0211975 · Certificate of Compliance
18111 PRINCE PHILIP DR STE 327, OLNEY, MD 20832(301) 774-6136(301) 570-0136 Get Directions Write a Review

NPPES record last updated: October 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Maryland Oncology Hematology, Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARYLAND ONCOLOGY HEMATOLOGY, PA (NPI 1285500322) is a healthcare organization registered as a hematology & oncology in Olney, Maryland and active in the NPI registry since October 2025. The organization holds a CLIA Certificate of Compliance certificate valid through November 24, 2026 and lists Robert Davis, Executive Director, as its authorized official.

NPPES Registry Identity

NPI1285500322
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameMARYLAND ONCOLOGY HEMATOLOGY, PA
Location Address18111 PRINCE PHILIP DR STE 327Olney, MD 20832-1507
Mailing Address11720 Beltsville Dr Ste 300Beltsville, MD 20705-3119 · (240) 223-1893 · Fax (301) 326-2926
Phone(301) 774-6136
Fax(301) 570-0136
Organization SubpartNo
Authorized OfficialRobert DavisExecutive Director · (202) 909-3301
Enumeration DateOctober 15, 2025
NPPES CertifiedOctober 15, 2025
✔ NPI 1285500322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
18111 PRINCE PHILIP DR STE 327, Olney, MD 20832
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 21D0211975

Maryland Oncology Hematology Olney · Olney, MD
Active · expires Nov 24, 2026
CLIA Number21D0211975
Laboratory TypePhysician Office
Certificate Effective DateNovember 25, 2024
Certificate Expiration DateNovember 24, 2026
Laboratory DirectorPaul A. Bannen
Laboratory Phone(301) 774-6136
Laboratory LocationMaryland Oncology Hematology Olney18111 Prince Phillips Drive, Suite 327, Olney, MD 20832
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RCCA MD LLC
Internal Medicine (Hematology & Oncology)
18111 PRINCE PHILIP DR STE 327
OLNEY, MD 20832
Montgomery County (301) 774-6136
RCCA MD LLC
Internal Medicine (Hematology & Oncology)
18111 PRINCE PHILIP DR STE 327
OLNEY, MD 20832
Montgomery County (301) 570-0136

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 Maryland Oncology Hematology, PA's NPI number?

The NPI number for Maryland Oncology Hematology, PA is 1285500322. It was assigned to this organization in the NPPES registry on October 15, 2025.

Where is Maryland Oncology Hematology, PA located?

Maryland Oncology Hematology, PA is located at 18111 Prince Philip Dr Ste 327, Olney, MD 20832. The listed phone number is (301) 774-6136.

What is Maryland Oncology Hematology, PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Does Maryland Oncology Hematology, PA hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 21D0211975) is associated with this NPI, valid through November 24, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Maryland Oncology Hematology, PA was last updated on October 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.