Gregory S Zimmermann, M.D.

Individual provider Active NPI Diagnostic Radiology Physician · Hagerstown, MD

NPI 1972601409 · NPPES record last updated Mar 20, 2025

Key facts

NPI
1972601409
Entity type
Individual (NPI type 1)
Primary specialty
Diagnostic Radiology Physician 2085R0202X
License
D56082 (MD)
Practice address
10715 Downsville Pike Ste 106
Hagerstown, MD 21740-7240
Phone
(301) 739-6144
Fax
(301) 739-6163
NPI assigned
Sep 20, 2006
Sex
Male
Sole proprietor
No

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

Medicare Care Compare profile

Specialty
Diagnostic Radiology
Education
Loma Linda University School of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Diagnostic Imaging Services LLC (17 clinicians)
Fulton Diagnostic Radiology LLC (11 clinicians)
St Agnes Healthcare Inc (265 clinicians)

Practice addresses (Care Compare)

1101 Opal CT
Hagerstown, MD 21740-5941
Phone (301) 714-4200

1110 Professional CT
Suite 200
Hagerstown, MD 21740-5945
Phone (240) 313-9870

11110 Medical Campus Rd
Hagerstown, MD 21742-6797
Phone (301) 714-4200

13620 Crayton Blvd
Hagerstown, MD 21742-2335
Phone (301) 714-4200

214 Peach Orchard Rd
MC Connellsburg, PA 17233-8559
Phone (301) 739-6144

900 Caton Ave
Baltimore, MD 21229-5201
Phone (667) 234-3120

Hospital & facility affiliations

  • Fulton County Medical Center Hospital · McConnellsburg, PA · CCN 391303
  • Saint Agnes Hospital Hospital · Baltimore, MD · CCN 210011

Merit-based Incentive Payment System (MIPS)

Final score
89.76 of 100 (group)
Quality
82.66
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
95.85 of 100 (group)
Quality
95.11
Improvement activities
40

Medicare participation

Medicare fee-for-service enrollment
Enrolled (2 enrollments) in MD, PA
Eligible to order & refer
Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
I20060220000592 MD Practitioner - Diagnostic Radiology 3173538626 Reassigns benefits to 3 organizations
I20180712000450 PA Practitioner - Diagnostic Radiology 3173538626 Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD)
Yes
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
D56082MDMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Associated Radiologists, PA Current
since Jul 1, 2000
Accepting new patients
Fulton Diagnostic Radiology LLC Diagnostic Radiology Current
since May 31, 2018
Accepting new patients
St Agnes Healthcare Inc Diagnostic Radiology Current
since Jan 3, 2026
Accepting new patients
St Agnes Healthcare Inc Current
since Jan 3, 2026
Accepting new patients
Diagnostic Imaging Services, LLC Current
since Jul 1, 2000
Accepting new patients

Locations

3449 Wilkens Ave
Ste 102
Baltimore, MD 21229
Phone (667) 234-8675

900 S Caton Ave
Baltimore, MD 21229
Phone (410) 368-3120

11110 Medical Campus Rd
Ste 204
Hagerstown, MD 21742
Phone (301) 714-1200

11116 Medical Campus Rd
Hagerstown, MD 21742
Phone (301) 766-7600

11110 Medical Campus Rd
Ste 245
Hagerstown, MD 21742
Phone (301) 714-4200

1101 Opal Ct
Hagerstown, MD 21740
Phone (301) 665-1462

322 E Antietam St
Ste 106
Hagerstown, MD 21740

11110 Medical Campus Rd
Ste 222
Hagerstown, MD 21742
Phone (301) 714-4200

10715 Downsville Pike
Ste 103
Hagerstown, MD 21740
Phone (240) 313-9940

1110 Professional Ct
Hagerstown, MD 21740
Phone (240) 420-5559

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X D56082 MD Yes

Addresses

Primary practice location

10715 Downsville Pike Ste 106
Hagerstown, MD 21740-7240

Mailing address

10715 Downsville Pike Ste 106
Hagerstown, MD 21740-7240
Phone (301) 739-6144

Other practice location 1

322 E Antietam St
Suite 106
Hagerstown, MD 21740-5794
Phone (301) 739-6144

Other identifiers

IdentifierTypeStateIssuer
079104100MedicaidMD

Other providers in Hagerstown, MD

All providers in Hagerstown, MD · Diagnostic Radiology Physician in Maryland

Sources for this page

Verify at the official NPI Registry.