Individual provider Active NPI

Gnanaraj Johnson Koilpillai, M.D.

  • Family Medicine Physician
  • Frederick, MD
National Provider Identifier
1245218064
Registry record updated Jul 30, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
D0057285 Issued in MD
Practice address
194 Thomas Johnson Dr
Suite a
Frederick, MD 21702-4679
Phone
(240) 215-6310
Fax
(240) 566-7751
NPI assigned
Jan 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 30, 2019

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X D0057285 MD Primary

Addresses

Primary practice location

194 Thomas Johnson Dr
Suite a
Frederick, MD 21702-4679

Mailing address

PO Box 37086
Baltimore, MD 21297-3086
Phone (240) 439-8913

Other identifiers 1

IdentifierTypeStateIssuer
211841OtherMDMEDICARE PROVIDER #

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
I20060123000636 MD Practitioner - Family Practice 7517926397 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

201 S Cleveland Ave
Hagerstown, MD 21740-5745
Phone (301) 745-3777

400 W 7TH St
Frederick, MD 21701-4506
Phone (240) 215-6310

501 W 7TH St
Suite 103
Frederick, MD 21701-5095
Phone (240) 215-6310

Merit-based Incentive Payment System (MIPS)

Final score
83.07 of 100Reported as group
Quality
75.5
Promoting interoperability
100
Improvement activities
40
Cost
68.06

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
D0057285MDMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Walnut Street Community Health Center, Inc. CurrentSince Aug 25, 2025 Accepting new patients
Frederick Health Medical Group LLC Family Medicine CurrentSince Oct 1, 2013 Accepting new patients
Frederick Health Medical Group LLC Family Medicine Current Accepting new patients
Frederick Health Medical Group LLC CurrentSince Oct 1, 2013 Accepting new patients
Walnut Street Community Health Center, Inc. CurrentSince Aug 25, 2025 Accepting new patients
Ashburn Medical Center PC Family Medicine Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

400 W 7th St
Frederick, MD 21701
Phone (240) 566-3300

501 W 7th St
Frederick, MD 21701
Phone (301) 360-2574

194 Thomas Johnson Dr
Frederick, MD 21702
Phone (240) 215-6370

194 Thomas Johnson Dr
Ste A
Frederick, MD 21702
Phone (240) 215-6370

24 N Walnut St
Ste 102
Hagerstown, MD 21740
Phone (301) 745-3777

201 S Cleveland Ave
Hagerstown, MD 21740
Phone (301) 745-3777

Interoperability endpoints

  • Direct secure messaging: gnanaraj.koilpillai.1@30195.direct.athenahealth.com

Organizations & group practices 7

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": "1136246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1564444800000",
    "number": "1245218064",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 37086",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212973086",
            "telephone_number": "240-439-8913",
            "fax_number": "240-439-8910"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "194 THOMAS JOHNSON DR",
            "address_2": "SUITE A",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217024679",
            "telephone_number": "240-215-6310",
            "fax_number": "240-566-7751"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOILPILLAI",
        "first_name": "GNANARAJ",
        "middle_name": "JOHNSON",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-03",
        "last_updated": "2019-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MD",
            "license": "D0057285",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PROVIDER #",
            "identifier": "211841",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Frederick, MD

Sources for this page

Verify at the official NPI Registry.