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AMERICAN ONCOLOGY PARTNERS, P.A.
NPI 1629865126
Internal Medicine - Hematology & Oncology in Baltimore, MD

Active since April 21, 2025CLIA 21D0993254 · Accreditation
5233 KING AVE STE 308, BALTIMORE, MD 21237(410) 780-4050(410) 780-4060 Get Directions Write a Review

NPPES record last updated: May 8, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About American Oncology Partners, P.a. NPPES

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

AMERICAN ONCOLOGY PARTNERS, P.A. (NPI 1629865126) is a healthcare organization registered as a hematology & oncology in Baltimore, Maryland and active in the NPI registry since April 2025. The organization holds an CLIA Accreditation certificate valid through April 20, 2028 and lists Ryan K Olson, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1629865126
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameAMERICAN ONCOLOGY PARTNERS, P.A.
Location Address5233 KING AVE STE 308Baltimore, MD 21237-4003
Mailing AddressPo Box 749495Atlanta, GA 30374-9495 · (855) 963-2100 · Fax (813) 321-1296
Phone(410) 780-4050
Fax(410) 780-4060
Organization SubpartNo
Authorized OfficialRyan K OlsonOwner/president · (239) 561-9622
Enumeration DateApril 21, 2025
Last NPPES UpdateMay 8, 2025
NPPES CertifiedMay 8, 2025
✔ NPI 1629865126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ 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.
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X
5233 KING AVE STE 308, Baltimore, MD 21237
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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 Accreditation 21D0993254

American Oncology Partners PA Dba The Ctr For Canc · Baltimore, MD
Active · expires Apr 20, 2028
CLIA Number21D0993254
Laboratory TypePhysician Office
Certificate Effective DateApril 21, 2026
Certificate Expiration DateApril 20, 2028
Laboratory DirectorDr. Michael Auerbach
Laboratory Phone(410) 780-4050
Laboratory LocationAmerican Oncology Partners PA Dba The Ctr For Canc5233 King Avenue, #308, Baltimore, MD 21237
CLIA data matches this NPI record on: Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES 4

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

MICHAEL AUERBACH M.D.
Internal Medicine (Hematology & Oncology)
5233 KING AVE STE 308
BALTIMORE, MD 21237
Baltimore County (410) 780-4050
AUERBACH HEMATOLOGY ONCOLOGY ASSOCIATES P C
Internal Medicine (Hematology & Oncology)
5233 KING AVE STE 308
BALTIMORE, MD 21237
Baltimore County (410) 780-4050
MRS. STEPHANIE LYNN HORROCKS CRNP
Nurse Practitioner
5233 KING AVE STE 308
BALTIMORE, MD 21237
Baltimore County (410) 780-4050
AUERBACH HEMATOLOGY ONCOLOGY ASSOCIATES P C
Pharmacy (Clinic Pharmacy)
5233 KING AVE STE 308
BALTIMORE, MD 21237
Baltimore County (410) 780-4050

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 American Oncology Partners, P.A.'s NPI number?

The NPI number for American Oncology Partners, P.A. is 1629865126. It was assigned to this organization in the NPPES registry on April 21, 2025.

Where is American Oncology Partners, P.A. located?

American Oncology Partners, P.A. is located at 5233 King Ave Ste 308, Baltimore, MD 21237. The listed phone number is (410) 780-4050.

What is American Oncology Partners, P.A.'s specialty?

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

Does American Oncology Partners, P.A. hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 21D0993254) is associated with this NPI, valid through April 20, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for American Oncology Partners, P.A. was last updated on May 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.