Active NPI
Christine Gruessner, M.D., M.P.H.
- Hematology & Oncology Physician
- Bethesda, MD
National Provider Identifier
1649654476
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- 210002358
- Practice address
- 10 Center Dr
Bethesda, MD 20892-1589 - Phone
- (240) 550-6022
- NPI assigned
- Jul 10, 2015
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | 210002358 | DC | Primary |
Addresses
Primary practice location
10 Center Dr
Bethesda, MD 20892-1589
Mailing address
10 Center Dr BLDG 10
Bethesda, MD 20892-1589
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 210002358 | DC | MD | Hematology & Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1436486400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1772409600000",
"number": "1649654476",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10 CENTER DR BLDG 10",
"city": "BETHESDA",
"state": "MD",
"postal_code": "208921589"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "10 CENTER DR",
"city": "BETHESDA",
"state": "MD",
"postal_code": "208921589",
"telephone_number": "240-550-6022"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRUESSNER",
"first_name": "CHRISTINE",
"name_prefix": "Dr.",
"credential": "M.D., M.P.H.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2015-07-10",
"last_updated": "2026-03-02",
"certification_date": "2026-03-02",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "DC",
"license": "210002358",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Bethesda, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 2, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.