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MARYLAND ONCOLOGY HEMATOLOGY P.A.
NPI 1396710703
Internal Medicine - Hematology & Oncology in Columbia, MD

Active since February 20, 2006
10710 CHARTER DRIVE, SUITE G020, COLUMBIA, MD 21044(410) 964-2212(410) 964-0380 Get Directions Write a Review

NPPES record last updated: December 7, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Maryland Oncology Hematology P.a. NPPES

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

MARYLAND ONCOLOGY HEMATOLOGY P.A. (NPI 1396710703) is a healthcare organization registered as a hematology & oncology in Columbia, Maryland and active in the NPI registry since February 2006. The organization lists Nicholas W Koutrelakos, President, as its authorized official.

NPPES Registry Identity

NPI1396710703
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameMARYLAND ONCOLOGY HEMATOLOGY P.A.
Location Address10710 CHARTER DRIVE, SUITE G020Columbia, MD 21044-3257
Mailing Address10710 Charter Drive, Suite G020Columbia, MD 21044-3257 · (410) 964-2212 · Fax (410) 964-0380
Phone(410) 964-2212
Fax(410) 964-0380
Organization SubpartNo
Authorized OfficialNicholas W KoutrelakosPresident · (410) 964-2212
Enumeration DateFebruary 20, 2006
Last NPPES UpdateDecember 7, 2010
✔ NPI 1396710703 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.
10710 CHARTER DRIVE, Columbia, MD 21044
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Other Identifiers 3

Medicare PINCK5436MD
Medicaid400899500MD
Medicare PIN498MMD

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maryland Oncology Hematology P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

102

Medicare enrollment records show 102 clinicians reassign Medicare billing to Maryland Oncology Hematology P.A., which bills Medicare for the services they deliver. Of these, 7 practice at this address and 9 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 12

Hematology/Oncology32
Nurse Practitioner23
Medical Oncology17
Internal Medicine9
Radiation Oncology5
Clinical Social Worker4
Hematology4
Obstetrics/Gynecology3
4 other specialties5

Nearest to this location (20)

See all 102
Marissa Davidson
Nurse Practitioner
NPI 1760223218
10710 CHARTER DR STE G020
Columbia, MD 21044
(410) 964-2122
✔ PECOS✔ Accepts MedicareSame address
Andrew Mener, M.D.
Hematology
NPI 1891084513
10710 CHARTER DR
Columbia, MD 21044
(410) 964-2212
✔ PECOS✔ Accepts MedicareSame address
Amanda Rowland, NP
Nurse Practitioner
NPI 1295447167
10710 CHARTER DR STE G020
Columbia, MD 21044
(410) 964-2212
✔ PECOSSame address
Amy Tissiere
Clinical Social Worker
NPI 1851943179
10710 CHARTER DR STE G020
Columbia, MD 21044
(410) 964-2212
✔ PECOS✔ Accepts MedicareSame address
Matthew Williams, MD
Hematology/Oncology
NPI 1063040681
10710 CHARTER DR STE G020
Columbia, MD 21044
(410) 964-2212
✔ PECOSSame address
Edward Lee, M.D.
Hematology/Oncology
NPI 1043285190
10710 CHARTER DR SUITE G020
Columbia, MD 21044
(410) 964-2212
✔ PECOS✔ Accepts MedicareSame address
Tejaswi Sastry, M.D.
Hematology/Oncology
NPI 1013005685
10710 CHARTER DR SUITE G020
Columbia, MD 21044
(410) 964-2212
✔ PECOS✔ Accepts MedicareSame address
Tomeeka Hawthorne, RN
Nurse Practitioner
NPI 1578076014
10440 LITTLE PATUXENT PKWY STE 800
Columbia, MD 21044
(667) 240-5239
✔ PECOS✔ Accepts Medicare1.2 mi
Regina Hampton, M.D.
General Surgery
NPI 1356338230
7140 CONTEE RD STE 3500
Laurel, MD 20707
(301) 942-4080
✔ PECOS✔ Accepts Medicare8.8 mi
Paul Bannen, MD
Medical Oncology
NPI 1942392899
18111 PRINCE PHILIP DR # 327 MILLER KAPLAN AND RAJAGOPAL PC
Olney, MD 20832
(301) 774-6136
✔ PECOS✔ Accepts Medicare10 mi
Dong Kim
Internal Medicine
NPI 1831695204
11890 HEALING WAY
Silver Spring, MD 20904
(240) 637-4000
✔ PECOS✔ Accepts Medicare12 mi
Sara Kim
Nurse Practitioner
NPI 1841063179
11886 HEALING WAY # 701
Silver Spring, MD 20904
(301) 933-3216
✔ PECOS✔ Accepts Medicare12 mi
Courtney Ackerman, M.D.
Hematology/Oncology
NPI 1790919744
11886 HEALING WAY STE 701
Silver Spring, MD 20904
(301) 933-3216
✔ PECOS✔ Accepts Medicare12 mi
Laurie Herscher, M.D.
Radiation Oncology
NPI 1750473856
11006 VEIRS MILL RD STE L1
Wheaton, MD 20902
(301) 681-4422
✔ PECOS✔ Accepts Medicare15 mi
Frederick Min, MD
Hematology
NPI 1366682429
2101 MEDICAL PARK DR SUITE 200
Silver Spring, MD 20902
(301) 933-3216
✔ PECOS✔ Accepts Medicare16 mi
Cynthia Plate, M.D.
General Surgery
NPI 1972579753
7610 CARROLL AVE SUITE 270
Takoma Park, MD 20912
(301) 891-6000
✔ PECOS✔ Accepts Medicare17 mi
Albert Steren, M.D.
Gynecological Oncology
NPI 1982753174
6301 EXECUTIVE BLVD
Rockville, MD 20852
(301) 770-4967
✔ PECOS✔ Accepts Medicare17 mi
Surupa Sen Gupta, M.D.
Surgical Oncology
NPI 1104138221
9905 MEDICAL CENTER DR STE 330
Rockville, MD 20850
(240) 238-3566
✔ PECOS✔ Accepts Medicare19 mi
Lindsey Wise, MSW, LCSW, OSW-C
Clinical Social Worker
NPI 1700375557
9905 MEDICAL CENTER DR
Rockville, MD 20850
(240) 826-2011
✔ PECOS✔ Accepts Medicare19 mi
Brian Richards, PSY.D
Clinical Psychologist
NPI 1861430910
901 DULANEY VALLEY RD SUITE 129
Towson, MD 21204
(410) 832-2729
✔ PECOS✔ Accepts Medicare20 mi
See all 102 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 P.A.'s NPI number?

The NPI number for Maryland Oncology Hematology P.A. is 1396710703. It was assigned to this organization in the NPPES registry on February 20, 2006.

Where is Maryland Oncology Hematology P.A. located?

Maryland Oncology Hematology P.A. is located at 10710 Charter Drive Suite G020, Columbia, MD 21044. The listed phone number is (410) 964-2212.

What is Maryland Oncology Hematology P.A.'s specialty?

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

Is Maryland Oncology Hematology P.A. enrolled in Medicare?

Yes. Maryland Oncology Hematology P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Maryland Oncology Hematology P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 102 clinicians in 12 Medicare specialties reassign their Medicare billing to Maryland Oncology Hematology P.A.. A 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 the clinician's services. The largest specialties are Hematology/Oncology (32), Nurse Practitioner (23) and Medical Oncology (17). Of these, 7 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Maryland Oncology Hematology P.A. was last updated on December 7, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.