UPPER CHESAPEAKE HEALTH ANCILLARY SERVICES
NPI 1821711425
Internal Medicine in Aberdeen, MD

Active since September 20, 2022
650 MCHENRY RD STE 1300, ABERDEEN, MD 21001(443) 843-6600 Get Directions Write a Review

NPPES record last updated: November 22, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 22, 2023, Sep 28, 2022, Sep 20, 2022 (3 updates tracked since 2022).

About Upper Chesapeake Health Ancillary Services NPPES

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

UPPER CHESAPEAKE HEALTH ANCILLARY SERVICES (NPI 1821711425) is a healthcare organization registered as an internal medicine in Aberdeen, Maryland and active in the NPI registry since September 2022. The organization lists Marcus Thomas Augustus Priolo, Chief Financial Officer, as its authorized official.

NPPES Registry Identity

NPI1821711425
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameUPPER CHESAPEAKE RADIATION ONCOLOGY, LLC
Location Address650 MCHENRY RD STE 1300Aberdeen, MD 21001-2607
Mailing Address650 Mchenry Rd Ste 1300Aberdeen, MD 21001-2607 · (443) 843-6600
Organization SubpartNo
Authorized OfficialMarcus Thomas Augustus PrioloChief Financial Officer · (443) 643-3344
Enumeration DateSeptember 20, 2022
Last NPPES UpdateNovember 22, 20233 updates tracked since enumeration
NPPES CertifiedNovember 22, 2023
✔ NPI 1821711425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedSurgeryTaxonomy 208600000X
650 MCHENRY RD STE 1300, Aberdeen, MD 21001

Other Names 1

Doing Business AsUpper Chesapeake Health Ancillary Services

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Upper Chesapeake Health Ancillary Services is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Upper Chesapeake Health Ancillary Services, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Nurse Practitioner
NPI 1831892652
418 MIDDLETON LN
Aberdeen, MD 21001
(443) 303-7210
✔ PECOS✔ Accepts Medicare0.7 mi
Nurse Practitioner
NPI 1790326387
510 UPPER CHESAPEAKE DR STE 409
Bel Air, MD 21014
(443) 643-3500
✔ PECOS✔ Accepts Medicare9.1 mi
Vascular Surgery
NPI 1538121983
510 UPPER CHESAPEAKE DR SUITE 517
Bel Air, MD 21014
(410) 420-4355
✔ PECOS✔ Accepts Medicare9.1 mi
Nurse Practitioner
NPI 1689605222
500 UPPER CHESAPEAKE DR ADULT HOSPITALIST DEPT
Bel Air, MD 21014
(443) 643-1500
✔ PECOS✔ Accepts Medicare9.1 mi
Emergency Medicine
NPI 1740324920
500 UPPER CHESAPEAKE DR
Bel Air, MD 21014
(310) 790-8372
✔ PECOS✔ Accepts Medicare9.1 mi
General Surgery
NPI 1740226570
500 UPPER CHESAPEAKE DR
Bel Air, MD 21014
(443) 643-1199
✔ PECOS9.2 mi
Nurse Practitioner
NPI 1861275638
96 SOFIA DR
Shrewsbury, PA 17361
(717) 218-2400
✔ PECOS✔ Accepts Medicare32 mi

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 Upper Chesapeake Radiation Oncology, LLC's NPI number?

The NPI number for Upper Chesapeake Radiation Oncology, LLC is 1821711425. It was assigned to this organization in the NPPES registry on September 20, 2022. The provider is doing business as Upper Chesapeake Health Ancillary Services.

Where is Upper Chesapeake Radiation Oncology, LLC located?

Upper Chesapeake Radiation Oncology, LLC is located at 650 Mchenry Rd Ste 1300, Aberdeen, MD 21001. The listed phone number is (443) 843-6600.

What is Upper Chesapeake Radiation Oncology, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Upper Chesapeake Radiation Oncology, LLC enrolled in Medicare?

Yes. Upper Chesapeake Radiation Oncology, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Upper Chesapeake Radiation Oncology, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 4 Medicare specialties reassign their Medicare billing to Upper Chesapeake Radiation Oncology, LLC. 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 Nurse Practitioner (4), Emergency Medicine (1) and General Surgery (1). Of these, 6 practice 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 Upper Chesapeake Radiation Oncology, LLC was last updated on November 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.