Individual provider Active NPI

Homayoon Mahjoob, M.D.

  • Gastroenterology Physician
  • Glenn Dale, MD
National Provider Identifier
1740494178
Registry record updated Oct 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
236692 Issued in MA
Practice address
12150 Annapolis Rd Ste 312
Glenn Dale, MD 20769-9183
Phone
(301) 352-7771
NPI assigned
May 8, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 9, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X EMC0005932 MI
Gastroenterology Physician 207RG0100X 236692 MA Primary
Gastroenterology Physician 207RG0100X C1-0028553 DE

Addresses

Primary practice location

12150 Annapolis Rd Ste 312
Glenn Dale, MD 20769-9183

Mailing address

12150 Annapolis Rd Ste 312
Glenn Dale, MD 20769-9183
Phone (301) 352-7771

Other practice location 1

18947 John J Williams Hwy
Rehoboth Beach, DE 19971-4474
Phone (302) 645-9325

Other practice location 2

424 Savannah Rd
Lewes, DE 19958-1462
Phone (302) 645-9325

Other practice location 3

33663 Bayview Medical Dr Unit 2
Lewes, DE 19958-1663
Phone (302) 645-9325

Other identifiers 2

IdentifierTypeStateIssuer
EMC0005932OtherMIMEDICAL LICENSE
D0058186OtherMDMEDICAL LICENSE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, MI, VA, DE4 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 4

Enrollment IDStateProvider typePAC IDDetails
I20070914000510 DC Practitioner - GastroenterologyPractitioner - Internal Medicine 6103919741 Reassigns benefits to 4 organizations
I20250214000498 MI Practitioner - Gastroenterology 6103919741 Reassigns benefits to 1 organization
I20250225000644 VA Practitioner - Gastroenterology 6103919741 Reassigns benefits to 1 organization
I20251023004596 DE Practitioner - Gastroenterology 6103919741 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 1991
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Beebe Physician Network Inc.Group PAC ID 5496744864, 301 clinicians

Practice addresses (Care Compare)

12150 Annapolis Rd
Suite 312
Glenn Dale, MD 20769-9183
Phone (301) 352-7771

424 Savannah Rd
Lewes, DE 19958-1462
Phone (302) 645-3525

Hospital & facility affiliations

  • Beebe Medical Center Hospital, Lewes, DE, CCN 080007
  • University of MD Capital Region Medical Center Hospital, Upper Marlboro, MD, CCN 210003

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy91
Upper gastrointestinal (GI) endoscopy for acid reflux220

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
C1-0028553DEMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Inova Health Care Services CurrentSince Dec 9, 2024 Accepting new patients
Inova Health Care Services CurrentSince Dec 9, 2024 Accepting new patients
Inova Health Care Services CurrentSince Dec 9, 2024 Accepting new patients
Beebe Physician Network Inc. Gastroenterology CurrentSince Sep 11, 2025 Accepting new patients
Promed Healthcare CurrentSince Jan 11, 2025 Accepting new patients
Ascension Medical Group Promed Gastroenterology CurrentSince Jan 11, 2025 Accepting new patients
Greenbelt Endoscopy Center,LLC CurrentSince Aug 11, 2014 Accepting new patients
Ascension Medical Group Promed Current Accepting new patients
Greenbelt Endoscopy Center, LLC CurrentSince Aug 11, 2014 Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

3800 Reservoir Rd NW
Washington, DC 20007
Phone (202) 687-2203

33663 Bayview Medical Dr
#2
Lewes, DE 19958
Phone (302) 645-9325

424 Savannah Rd
Lewes, DE 19958
Phone (302) 441-1078

32550 Docs Pl
Unit 2
Millville, DE 19967
Phone (302) 539-4302

18947 John J Williams Hwy
Rehoboth Beach, DE 19971
Phone (302) 645-3010

9821 Greenbelt Rd
Ste 103
Lanham, MD 20706
Phone (301) 552-1801

1717 Shaffer St
Ste 2
Kalamazoo, MI 49048

1521 Gull Rd
Kalamazoo, MI 49048
Phone (269) 226-5165

7901 Angling Rd
Portage, MI 49024
Phone (269) 324-8405

8081 Innovation Park Dr
Fairfax, VA 22031
Phone (571) 472-0606

8095 Innovation Park Dr
Bldg C
Fairfax, VA 22031
Phone (571) 472-6253

3300 Gallows Rd
Falls Church, VA 22042
Phone (703) 352-9395

44045 Riverside Pkwy
Leesburg, VA 20176
Phone (703) 858-6040

224B Cornwall St NW
Leesburg, VA 20176
Phone (703) 771-2894

Interoperability endpoints

  • Direct secure messaging: hmahjoob32137@tuftsmedicine.direct-ci.com

Organizations & group practices 11

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1178582400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1740494178",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12150 ANNAPOLIS RD STE 312",
            "city": "GLENN DALE",
            "state": "MD",
            "postal_code": "207699183",
            "telephone_number": "301-352-7771"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12150 ANNAPOLIS RD STE 312",
            "city": "GLENN DALE",
            "state": "MD",
            "postal_code": "207699183",
            "telephone_number": "301-352-7771"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "18947 John J Williams Hwy",
            "address_purpose": "LOCATION",
            "city": "Rehoboth Beach",
            "state": "DE",
            "postal_code": "199714474",
            "country_code": "US",
            "telephone_number": "302-645-9325",
            "fax_number": "302-644-7162",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "424 Savannah Rd",
            "address_purpose": "LOCATION",
            "city": "Lewes",
            "state": "DE",
            "postal_code": "199581462",
            "country_code": "US",
            "telephone_number": "302-645-9325",
            "fax_number": "302-644-7162",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "33663 Bayview Medical Dr Unit 2",
            "address_purpose": "LOCATION",
            "city": "Lewes",
            "state": "DE",
            "postal_code": "199581663",
            "country_code": "US",
            "telephone_number": "302-645-9325",
            "fax_number": "302-644-7162",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAHJOOB",
        "first_name": "HOMAYOON",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-08",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MI",
            "license": "EMC0005932",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MA",
            "license": "236692",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "DE",
            "license": "C1-0028553",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "EMC0005932",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "D0058186",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Glenn Dale, MD

Sources for this page

Verify at the official NPI Registry.