UNION HOSPITAL OF CECIL COUNTY, INC.
NPI 1851142640
Internal Medicine - Endocrinology, Diabetes & Metabolism in Elkton, MD

Active since March 29, 2024
137 W HIGH ST STE 1B, ELKTON, MD 21921(410) 620-3548 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Union Hospital Of Cecil County, Inc. NPPES

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

UNION HOSPITAL OF CECIL COUNTY, INC. (NPI 1851142640), doing business as Union Endocrinology, is a healthcare organization registered as an endocrinology, diabetes & metabolism in Elkton, Maryland and active in the NPI registry since March 2024. The organization lists Judy Riesen, Corporate Director Of Revenue Cycle, as its authorized official.

NPPES Registry Identity

NPI1851142640
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameUNION HOSPITAL OF CECIL COUNTY, INC.
Location Address137 W HIGH ST STE 1BElkton, MD 21921-8614
Mailing Address4000 Nexus Dr # E3Wilmington, DE 19803-3000 · (302) 428-6782
Organization SubpartNo
Authorized OfficialJudy RiesenCorporate Director Of Revenue Cycle · (302) 623-7168
Enumeration DateMarch 29, 2024
Last NPPES UpdateFebruary 17, 2026
NPPES CertifiedFebruary 17, 2026
✔ NPI 1851142640 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedPhysician AssistantTaxonomy 363A00000X
137 W HIGH ST STE 1B, Elkton, MD 21921

Other Names 1

Doing Business AsUnion Endocrinology

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

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Union Hospital Of Cecil County, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

512

Medicare enrollment records show 512 clinicians reassign Medicare billing to Union Hospital Of Cecil County, Inc., which bills Medicare for the services they deliver. Of these, 5 practice at this address and 56 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 38

Internal Medicine191
Nurse Practitioner50
Diagnostic Radiology46
Neurology35
Obstetrics/Gynecology23
Family Practice21
General Surgery21
Cardiovascular Disease (Cardiology)16
30 other specialties109

Nearest to this location (20)

See all 512
Nurse Practitioner
NPI 1033782735
137 W HIGH ST STE 3B
Elkton, MD 21921
(443) 245-7377
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1255413969
111 W HIGH ST SUITE 314
Elkton, MD 21921
(410) 398-4679
✔ PECOSSame address
Nurse Practitioner
NPI 1053721233
111 W HIGH ST SUITE 314
Elkton, MD 21921
(410) 620-0545
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1194943332
111 W HIGH ST SUITE 204
Elkton, MD 21921
(410) 620-0008
✔ PECOSSame address
Nurse Practitioner
NPI 1215486972
111 W HIGH ST STE 302
Elkton, MD 21921
(410) 620-0545
✔ PECOS✔ Accepts MedicareSame address
Qualified Audiologist
NPI 1578500435
111 W HIGH ST SUITE 303
Elkton, MD 21921
(410) 398-5022
✔ Accepts Medicare0.1 mi
Internal Medicine
NPI 1982139119
106 BOW ST
Elkton, MD 21921
(410) 398-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Nephrology
NPI 1194276063
106 BOW ST
Elkton, MD 21921
(410) 398-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Pulmonary Disease
NPI 1205093804
106 BOW STREET UNION HOSPITAL OF CECIL COUNTY
Elkton, MD 21921
(410) 398-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Nurse Practitioner
NPI 1275161408
106 BOW ST
Elkton, MD 21921
(302) 897-1066
✔ PECOS✔ Accepts Medicare0.1 mi
Diagnostic Radiology
NPI 1083726053
106 BOW STREET
Elkton, MD 21921
(410) 392-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1801990460
106 BOW ST
Elkton, MD 21921
(410) 398-4000
✔ Accepts Medicare0.1 mi
Anesthesiology
NPI 1538183827
106 BOW ST
Elkton, MD 21921
(410) 398-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Clinical Social Worker
NPI 1063090850
106 BOW ST
Elkton, MD 21921
(410) 398-4000
✔ PECOS✔ Accepts Medicare0.1 mi
Family Practice
NPI 1801003488
118 NORTH ST STE 3B
Elkton, MD 21921
(410) 287-3727
✔ PECOS✔ Accepts Medicare0.2 mi
Hematology/Oncology
NPI 1518165943
111 W HIGH ST STE 302
Elkton, MD 21921
(410) 392-2677
✔ PECOS✔ Accepts Medicare0.2 mi
Qualified Speech Language Pathologist
NPI 1295482297
111 W HIGH ST STE 303
Elkton, MD 21921
(410) 392-2380
✔ Accepts Medicare0.2 mi
Gastroenterology
NPI 1801088596
137 W HIGH ST SUITE 2B
Elkton, MD 21921
(410) 398-8888
✔ PECOS✔ Accepts Medicare0.3 mi
Obstetrics/Gynecology
NPI 1881896132
137 W HIGH ST STE 3B
Elkton, MD 21921
(443) 245-7377
✔ PECOS✔ Accepts Medicare0.3 mi
Certified Nurse Midwife (CNM)
NPI 1588326813
137 W HIGH ST STE 3B
Elkton, MD 21921
(443) 245-7377
✔ PECOS✔ Accepts Medicare0.3 mi
See all 512 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 Union Hospital Of Cecil County, Inc.'s NPI number?

The NPI number for Union Hospital Of Cecil County, Inc. is 1851142640. It was assigned to this organization in the NPPES registry on March 29, 2024. The provider is doing business as Union Endocrinology.

Where is Union Hospital Of Cecil County, Inc. located?

Union Hospital Of Cecil County, Inc. is located at 137 W High St Ste 1B, Elkton, MD 21921. The listed phone number is (410) 620-3548.

What is Union Hospital Of Cecil County, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Union Hospital Of Cecil County, Inc. enrolled in Medicare?

Yes. Union Hospital Of Cecil County, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Union Hospital Of Cecil County, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 512 clinicians in 38 Medicare specialties reassign their Medicare billing to Union Hospital Of Cecil County, Inc.. 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 Internal Medicine (191), Nurse Practitioner (50) and Diagnostic Radiology (46). Of these, 5 practice at this address and 56 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Union Hospital Of Cecil County, Inc. accept?

Health plans from Highmark Blue Cross Blue Shield Delaware list Union Hospital Of Cecil County, Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Union Hospital Of Cecil County, Inc. was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.