Individual provider Active NPI

Nickolas Theophilos Agathis, M.D. (IN MAY 2015)

  • Pediatrics Physician
  • Columbia, MD
National Provider Identifier
1740676535
Registry record updated Jan 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
D0103043 Issued in MD
Practice address
5755 Cedar LN
Columbia, MD 21044-2912
Phone
(410) 740-7890
NPI assigned
Apr 8, 2015
Last updated
Jan 21, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X D0103043 MD Primary
Pediatrics Physician 208000000X 87978 GA

Addresses

Primary practice location

5755 Cedar LN
Columbia, MD 21044-2912

Mailing address

6201 Greenleigh Ave
Baltimore, MD 21220-2004
Phone (410) 933-6423

Other practice location 1

8901 Wisconsin Ave
Bethesda, MD 20889-2724
Phone (301) 400-0408

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD
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 1

Enrollment IDStateProvider typePAC IDDetails
I20260203000251 MD Practitioner - Pediatric Medicine 6709277668 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
New York University School of Medicine, 2015
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

6201 Greenleigh Ave
Baltimore, MD 21220-2004

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
87978GAMDPediatrics Physician
D0103043MDMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Johns Hopkins University CurrentSince Dec 22, 2025 Accepting new patients
Johns Hopkins University CurrentSince Dec 22, 2025 Accepting new patients

Locations

5755 Cedar Ln
Columbia, MD 21044
Phone (410) 381-7171

6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704

Organizations & group practices 2

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

NPI Registry JSON

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

{
    "created_epoch": "1428451200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768953600000",
    "number": "1740676535",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-933-6423"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5755 CEDAR LN",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210442912",
            "telephone_number": "410-740-7890"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8901 Wisconsin Ave",
            "address_purpose": "LOCATION",
            "city": "Bethesda",
            "state": "MD",
            "postal_code": "208892724",
            "country_code": "US",
            "telephone_number": "301-400-0408",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AGATHIS",
        "first_name": "NICKOLAS",
        "middle_name": "THEOPHILOS",
        "credential": "M.D. (IN MAY 2015)",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-08",
        "last_updated": "2026-01-21",
        "certification_date": "2026-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D0103043",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "GA",
            "license": "87978",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Columbia, MD

Sources for this page

Verify at the official NPI Registry.