Active NPI
Alhareth Alsagban, MD
- Hospitalist Physician
- Baltimore, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hospitalist Physician
- License
- D97799
- Practice address
- 5200 Eastern Ave FL Tower2
Baltimore, MD 21224-2734 - Phone
- (410) 550-5018
- Fax
- (410) 550-2972
- NPI assigned
- Apr 20, 2020
- Last updated
- Jul 16, 2026
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hospitalist Physician | 208M00000X | D97799 | MD | Primary |
| Pulmonary Disease Physician | 207RP1001X | 4301517846 | MI |
Addresses
Primary practice location
5200 Eastern Ave FL Tower2
Baltimore, MD 21224-2734
Mailing address
100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone (410) 933-6423
Other practice location 1
5700 E Highway 90
Sierra Vista, AZ 85635-9110
Phone (520) 263-2000
Other practice location 2
100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone (616) 732-6200
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: No
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- Other, 2014
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
4940 Eastern Ave
Baltimore, MD 21224-2735
Phone (410) 550-0100
600 N Wolf St
Baltimore, MD 21287-0005
Phone (410) 955-5000
6201 Greenleigh Ave
Middle River, MD 21220-2004
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 83.31 of 100
- Quality
- 73.89
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 70.47
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| D97799 | MD | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Johns Hopkins University | Current | Accepting new patients | |
| Johns Hopkins University | Hospitalist | Current | Accepting new patients |
Locations
600 N Wolfe St
Baltimore, MD 21287
6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704
Interoperability endpoints
- aalsagban1129567@direct.hopkinsmedicine.org
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.
-
dba Jhu - Medicine/Hospitalist
- Hospitalist Physician
- Baltimore, MD
- NPI 1902332133
-
dba JHU - 6849 Old Dominion Drive - Physician
- Neurology Physician
- McLean, VA
- NPI 1598552226
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1790700904
-
dba Johns Hopkins Bayview Care Center
- Chronic Disease Hospital
- Baltimore, MD
- NPI 1336251412
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1578597993
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1587340800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784160000000",
"number": "1225658305",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "100 MICHIGAN ST NE",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495032560",
"telephone_number": "410-933-6423"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5200 EASTERN AVE FL TOWER2",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212242734",
"telephone_number": "410-550-5018",
"fax_number": "410-550-2972"
}
],
"practiceLocations": [
{
"address_1": "5700 E Highway 90",
"address_purpose": "LOCATION",
"city": "Sierra Vista",
"state": "AZ",
"postal_code": "856359110",
"country_code": "US",
"telephone_number": "520-263-2000",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "100 Michigan St NE",
"address_purpose": "LOCATION",
"city": "Grand Rapids",
"state": "MI",
"postal_code": "495032560",
"country_code": "US",
"telephone_number": "616-732-6200",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ALSAGBAN",
"first_name": "ALHARETH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-04-20",
"last_updated": "2026-07-16",
"certification_date": "2026-07-16",
"status": "A"
},
"taxonomies": [
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "MD",
"license": "D97799",
"primary": true
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "MI",
"license": "4301517846",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Baltimore, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 2026; 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.