Individual provider Active NPI

Karl Michael Grimmer Jr., MD

  • Anesthesiology Physician
  • Washington, DC
National Provider Identifier
1386842003
Registry record updated Jan 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
MD041865 Issued in DC
Practice address
50 Florida Ave NE Apt 511
Washington, DC 20002-6968
Phone
(219) 902-3878
NPI assigned
Jul 3, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 18, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X D72351 MD
Anesthesiology Physician 207L00000X 101254955 VA
Anesthesiology Physician 207L00000X 01069743A IN
Anesthesiology Physician 207L00000X MD041865 DC Primary

Addresses

Primary practice location

50 Florida Ave NE Apt 511
Washington, DC 20002-6968

Mailing address

50 Florida Ave NE Apt 511
Washington, DC 20002-6968
Phone (219) 902-3878

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC, DE3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20110809000114 MD Practitioner - Anesthesiology 0244409233 Reassigns benefits to 3 organizations
I20140827002522 DC Practitioner - Anesthesiology 0244409233 Reassigns benefits to 2 organizations
I20260325000834 DE Practitioner - Anesthesiology 0244409233 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Indiana University School of Medicine, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Anesthesia Company LLCGroup PAC ID 4587559026, 373 clinicians

Practice addresses (Care Compare)

100 E Carroll St
Salisbury, MD 21801-5422
Phone (410) 546-6400

70 Sherry LN
Suite 101
Prince Frederick, MD 20678-3276
Phone (410) 889-2040

801 Middleford Rd
Seaford, DE 19973-3636
Phone (302) 629-6611

Hospital & facility affiliations

  • Tidalhealth Peninsula Regional, Inc Hospital, Salisbury, MD, CCN 210019

Merit-based Incentive Payment System (MIPS)

Final score
63.85 of 100Reported as group
Quality
57.47
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD041865DCMDAnesthesiology Physician
01069743AINMDAnesthesiology Physician
101254955VAMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
First Colonies Anesthesia Associates, LLC Anesthesiology CurrentSince Feb 10, 2020 Accepting new patients
Surgical Anesthesia Associates, PLLC Anesthesiology CurrentSince Jun 11, 2014 Accepting new patients
Anesthesia Company, LLC Anesthesiology CurrentSince Dec 6, 2024 Accepting new patients
Davinci Plastic Surgery PC Past Accepting new patients
Medstar Georgetown Medical Center, Inc Past Accepting new patients

Locations

2041 Georgia Ave NW
Washington, DC 20060
Phone (202) 865-3785

3050 K St NW
Ste 170
Washington, DC 20007
Phone (202) 966-9590

5255 Loughboro Rd NW
Washington, DC 20016
Phone (202) 243-2280

801 Middleford Rd
Seaford, DE 19973
Phone (302) 628-9178

2001 Medical Pkwy
Annapolis, MD 21401
Phone (410) 280-5601

6500 Rock Spring Dr
Ste 100
Bethesda, MD 20817
Phone (240) 483-0282

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

70 Sherry Ln
Ste 101
Prnc Frederck, MD 20678
Phone (410) 889-2040

11210 Old Georgetown Rd
#12202
Rockville, MD 20852
Phone (301) 881-7770

11210 Old Georgetown Rd
Rockville, MD 20852
Phone (301) 881-7770

46 W Gude Dr
Rockville, MD 20850
Phone (240) 750-6170

8322 Bellona Ave
Ste 201
Towson, MD 21204
Phone (410) 337-2688

Organizations & group practices 6

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 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": "1183420800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1737158400000",
    "number": "1386842003",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "50 FLORIDA AVE NE APT 511",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200026968",
            "telephone_number": "219-902-3878"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 FLORIDA AVE NE APT 511",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200026968",
            "telephone_number": "219-902-3878"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRIMMER",
        "first_name": "KARL",
        "middle_name": "MICHAEL",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-07-03",
        "last_updated": "2025-01-18",
        "certification_date": "2025-01-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MD",
            "license": "D72351",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "VA",
            "license": "101254955",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IN",
            "license": "01069743A",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "DC",
            "license": "MD041865",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.