Active NPI
Karl Michael Grimmer Jr., MD
- Anesthesiology Physician
- Washington, DC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- MD041865
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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, DE
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
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
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
Merit-based Incentive Payment System (MIPS)
- Final score
- 63.85 of 100
- Quality
- 57.47
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD041865 | DC | MD | Anesthesiology Physician |
| 01069743A | IN | MD | Anesthesiology Physician |
| 101254955 | VA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| First Colonies Anesthesia Associates, LLC | Anesthesiology | Current | Accepting new patients |
| Surgical Anesthesia Associates, PLLC | Anesthesiology | Current | Accepting new patients |
| Anesthesia Company, LLC | Anesthesiology | Current | 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.
-
- Anesthesiology Physician
- Washington, DC
- NPI 1811930647
-
- Medical Specialty Clinic/Center
- Salisbury, MD
- NPI 1619504735
-
- Plastic and Reconstructive Surgery Physician
- Washington, DC
- NPI 1659545366
-
- Internal Medicine Physician
- Washington, DC
- NPI 1285636522
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Salisbury, MD
- NPI 1780689463
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.