Individual provider Active NPI

Michael C Slack, MD

  • Pediatric Cardiology Physician
  • Baltimore, MD
National Provider Identifier
1588758940
Registry record updated Jan 5, 2015
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Cardiology PhysicianTaxonomy code 2080P0202X
License
D55380 Issued in MD
Practice address
22 S Greene St
N5W70C
Baltimore, MD 21201-1544
Phone
(410) 328-2427
Fax
(443) 462-3137
NPI assigned
Oct 2, 2006
Last updated
Jan 5, 2015By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 5, 2015

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Cardiology Physician 2080P0202X MD31860 DC
Pediatric Cardiology Physician 2080P0202X D55380 MD Primary

Addresses

Primary practice location

22 S Greene St
N5W70C
Baltimore, MD 21201-1544

Mailing address

PO Box 62063
Baltimore, MD 21264-2063
Phone (410) 706-5181

Other identifiers 5

IdentifierTypeStateIssuer
028095100MedicaidDC
202009201MedicaidMD
0614OtherDCCAREFIRST
202009200MedicaidMD
6731538MedicaidVA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, MD2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20101129000698 DC Practitioner - Pediatric MedicinePractitioner - Cardiovascular Disease (Cardiology) 3375739659 Reassigns benefits to 2 organizations
I20141218002192 MD Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Pediatric Medicine 3375739659 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric MedicineAlso: Cardiovascular Disease (Cardiology)
Education
Uniformed Services Uhs Fe Hebert School of Med, 1983
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians
Medstar Heart Institute LLCGroup PAC ID 5698932960, 308 clinicians

Practice addresses (Care Compare)

110 Irving St NW
Washington, DC 20010-3017
Phone (202) 877-7000

22 S Green St
Baltimore, MD 21201-1544
Phone (410) 706-5181

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
85.94 of 100Reported as group
Quality
66.29
Promoting interoperability
100
Improvement activities
40
Cost
74.65

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Maimonides Medical Center Current Accepting new patients
Medstar Medical Group II LLC CurrentSince Sep 1, 2025 Accepting new patients
Medstar Heart Institute LLC CurrentSince Oct 1, 2016 Accepting new patients
Medstar Medical Group II LLC CurrentSince Sep 1, 2025 Accepting new patients
University of Maryland Pediatric Assoc PA CurrentSince Dec 1, 2014 Accepting new patients
Medstar Medical Group II LLC Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

110 Irving St NW
Washington, DC 20010
Phone (202) 877-2000

110 Irving St NW
Ste 4B1
Washington, DC 20010
Phone (202) 877-5975

111 Michigan Ave NW
Washington, DC 20010
Phone (202) 476-3670

1145 19th St NW
Ste 311
Washington, DC 20036
Phone (202) 429-2401

22 S Greene St
Baltimore, MD 21201
Phone (410) 328-5793

22 S Greene St
#N5W70C
Baltimore, MD 21201
Phone (410) 328-2427

22 S Greene St
Fl 5
Baltimore, MD 21201
Phone (410) 328-5887

Interoperability endpoints

  • Direct secure messaging: michaelslack@mai.allscriptsdirect.net
  • Direct secure messaging: mslack154527@direct.umm.edu

Organizations & group practices 8

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.

Hospital & facility affiliations 1

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": "1159747200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1420416000000",
    "number": "1588758940",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 62063",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212642063",
            "telephone_number": "410-706-5181",
            "fax_number": "410-706-5103"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 S GREENE ST",
            "address_2": "N5W70C",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212011544",
            "telephone_number": "410-328-2427",
            "fax_number": "443-462-3137"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLACK",
        "first_name": "MICHAEL",
        "middle_name": "C",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-02",
        "last_updated": "2015-01-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "DC",
            "license": "MD31860",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "MD",
            "license": "D55380",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "028095100",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "202009201",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAREFIRST",
            "identifier": "0614",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "202009200",
            "state": "MD"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "6731538",
            "state": "VA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.