MEP OBSERVATION SERVICES LLC
NPI 1093003550
Emergency Medicine in Cumberland, MD

Active since July 19, 2011
12500 WILLOWBROOK RD, CUMBERLAND, MD 21502(330) 493-4443 Get Directions Write a Review

NPPES record last updated: December 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 18, 2024, Jul 21, 2022 (2 updates tracked since 2022).

About Mep Observation Services Llc NPPES

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

MEP OBSERVATION SERVICES LLC (NPI 1093003550) is a healthcare organization registered as an emergency medicine in Cumberland, Maryland and active in the NPI registry since July 2011. The organization lists Jennifer Chastain, Provider Enrollment, as its authorized official.

NPPES Registry Identity

NPI1093003550
Entity TypeOrganization
Primary Taxonomy207P00000X
Legal Business NameMEP OBSERVATION SERVICES LLC
Location Address12500 WILLOWBROOK RDCumberland, MD 21502-6393
Mailing Address4535 Dressler Rd NwCanton, OH 44718-2545 · (330) 493-4443
Organization SubpartNo
Authorized OfficialJennifer ChastainProvider Enrollment · (330) 493-4443
Enumeration DateJuly 19, 2011
Last NPPES UpdateDecember 18, 20242 updates tracked since enumeration
NPPES CertifiedDecember 18, 2024
✔ NPI 1093003550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
12500 WILLOWBROOK RD, Cumberland, MD 21502

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)

Mep Observation Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

106

Medicare enrollment records show 106 clinicians reassign Medicare billing to Mep Observation Services LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Emergency Medicine55
Nurse Practitioner45
Internal Medicine4
Family Practice1
Hospitalist1

Nearest to this location (20)

See all 106
Family Practice
NPI 1639156938
12500 WILLOWBROOK RD
Cumberland, MD 21502
(240) 964-8564
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1013384072
12502 WILLOWBROOK RD SUITE 280
Cumberland, MD 21502
(240) 964-8750
✔ PECOS✔ Accepts Medicare0.1 mi
Nurse Practitioner
NPI 1336322676
1880 AMHERST STREET SUITE 100 AND SUITE 200
Winchester, VA 22601
(540) 662-0306
✔ PECOS✔ Accepts Medicare43 mi
Emergency Medicine
NPI 1194170308
1086 FRANKLIN ST
Johnstown, PA 15905
(814) 534-3745
✔ PECOS46 mi
Nurse Practitioner
NPI 1932630324
11116 MEDICAL CAMPUS RD
Hagerstown, MD 21742
(301) 790-8804
✔ PECOS✔ Accepts Medicare56 mi
Nurse Practitioner
NPI 1891203782
112 N 7TH ST
Chambersburg, PA 17201
(717) 217-4300
✔ PECOS✔ Accepts Medicare61 mi
Nurse Practitioner
NPI 1710760368
1305 W 7TH ST STE 28
Frederick, MD 21702
(301) 228-3600
✔ PECOS✔ Accepts Medicare72 mi
Nurse Practitioner
NPI 1013546100
814 TOLL HOUSE AVE
Frederick, MD 21701
(301) 662-8310
✔ PECOS✔ Accepts Medicare72 mi
Nurse Practitioner
NPI 1881275378
400 W 7TH ST
Frederick, MD 21701
(240) 566-3500
✔ PECOS✔ Accepts Medicare73 mi
Nurse Practitioner
NPI 1538480975
44045 RIVERSIDE PKWY STE 100
Leesburg, VA 20176
(703) 858-8878
✔ PECOS✔ Accepts Medicare78 mi
Emergency Medicine
NPI 1104246974
20010 CENTURY BLVD SUITE 200
Germantown, MD 20874
(240) 686-2300
✔ PECOS✔ Accepts Medicare85 mi
Emergency Medicine
NPI 1609007749
20010 CENTURY BLVD STE 200
Germantown, MD 20874
(888) 541-6368
✔ PECOS✔ Accepts Medicare85 mi
Nurse Practitioner
NPI 1265465165
9901 MEDICAL CENTER DR
Rockville, MD 20850
(301) 279-6550
✔ PECOS91 mi
Nurse Practitioner
NPI 1407564271
9901 MEDICAL CENTER DR
Rockville, MD 20850
(111) 111-1111
✔ PECOS✔ Accepts Medicare91 mi
Emergency Medicine
NPI 1215980255
9901 MEDICAL CENTER DR
Rockville, MD 20850
(240) 364-2515
✔ PECOS✔ Accepts Medicare91 mi
Emergency Medicine
NPI 1386933950
9901 MEDICAL CENTER DR
Rockville, MD 20850
(301) 279-6000
✔ PECOS91 mi
Emergency Medicine
NPI 1548418981
6700 APPLEWOOD PL
Rockville, MD 20855
(301) 461-0635
✔ PECOS✔ Accepts Medicare92 mi
Emergency Medicine
NPI 1467949602
200 MEMORIAL AVE
Westminster, MD 21157
(410) 848-3000
✔ PECOS✔ Accepts Medicare93 mi
Emergency Medicine
NPI 1598405888
200 MEMORIAL AVE
Westminster, MD 21157
(410) 848-3000
✔ PECOS93 mi
Emergency Medicine
NPI 1598798241
200 MEMORIAL AVE CARROLL HOSPITAL CENTER
Westminster, MD 21157
(410) 871-6700
✔ PECOS93 mi
See all 106 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 Mep Observation Services LLC's NPI number?

The NPI number for Mep Observation Services LLC is 1093003550. It was assigned to this organization in the NPPES registry on July 19, 2011.

Where is Mep Observation Services LLC located?

Mep Observation Services LLC is located at 12500 Willowbrook Rd, Cumberland, MD 21502. The listed phone number is (330) 493-4443.

What is Mep Observation Services LLC's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Mep Observation Services LLC enrolled in Medicare?

Yes. Mep Observation Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mep Observation Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 106 clinicians in 5 Medicare specialties reassign their Medicare billing to Mep Observation Services 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 Emergency Medicine (55), Nurse Practitioner (45) and Internal Medicine (4). Of these, 1 practice at this address and 2 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 Mep Observation Services LLC was last updated on December 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.