Active NPI
Christopher Gresham Langhammer, M.D., PH.D.
- Orthopaedic Hand Surgery Physician
- Hunt Valley, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Orthopaedic Hand Surgery Physician
- License
- 270305
- Practice address
- 226 Schilling Cir Ste 170
Hunt Valley, MD 21031-8641 - Phone
- (410) 448-6400
- Fax
- (410) 785-4840
- NPI assigned
- Apr 6, 2012
- 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 |
|---|---|---|---|---|
| Orthopaedic Hand Surgery Physician | 207XS0106X | A128855 | CA | |
| Orthopaedic Hand Surgery Physician | 207XS0106X | 270305 | MA | Primary |
Addresses
Primary practice location
226 Schilling Cir Ste 170
Hunt Valley, MD 21031-8641
Mailing address
PO Box 64134
Baltimore, MD 21264-4134
Phone (667) 214-2714
Other practice location 1
75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500
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: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Orthopedic Surgery
- Education
- Other, 2012
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
22 S Green St
Baltimore, MD 21201-1544
Phone (410) 328-6704
2200 Kernan Dr
Baltimore, MD 21207-6665
Phone (410) 328-6704
Hospital & facility affiliations
- University of Maryland Medical Center
- Umd Rehabilitation & Orthopaedic Institute
- University of MD Medical Center Midtown Campus
- University of MD Shore Medical Center at Easton
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Melanoma (skin cancer) excision | 1-10 |
| Removal of tissue | 13 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A128855 | CA | MD | Orthopaedic Hand Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University of Maryland Orthopaedic Associates PA | Hand Surgery | Current | Accepting new patients |
| University of Maryland Orthopaedic Trauma Associates, PA | Current | Accepting new patients | |
| University of Maryland Orthopaedic Associates P a | Hand Surgery | Current | Accepting new patients |
| University of Maryland Medical Center, LLC | Past | Accepting new patients | |
| Frederick Health Hospital Inc | Past | Accepting new patients |
Locations
351 W Camden St
Ste 501
Baltimore, MD 21201
Phone (410) 328-6034
351 W Camden St
Fl 5
Baltimore, MD 21201
Phone (410) 328-6040
22 S Greene St
Baltimore, MD 21201
Phone (410) 328-5793
226 Schilling Cir
Ste 17
Hunt Valley, MD 21031
226 Schilling Cir
Ste 170
Hunt Valley, MD 21031
Phone (240) 315-6800
Interoperability endpoints
- clanghammer546905@direct.umm.edu
Organizations & group practices 5
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.
-
- Pediatric Orthopaedic Surgery Physician
- Baltimore, MD
- NPI 1740235274
Hand Surgery
-
- Orthopaedic Trauma Physician
- Baltimore, MD
- NPI 1497708051
-
- Orthopaedic Surgery Physician
- Laurel, MD
- NPI 1649080714
Hand Surgery
-
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1174660120
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1841337805
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1669565180
-
- General Acute Care Hospital
- Cambridge, MD
- NPI 1194784751
-
- General Acute Care Hospital
- Easton, MD
- NPI 1669431219
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1174660120
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1333670400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751414400000",
"number": "1699031351",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 64134",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212644134",
"telephone_number": "667-214-2714",
"fax_number": "410-448-6926"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "226 SCHILLING CIR STE 170",
"city": "HUNT VALLEY",
"state": "MD",
"postal_code": "210318641",
"telephone_number": "410-448-6400",
"fax_number": "410-785-4840"
}
],
"practiceLocations": [
{
"address_1": "75 Francis St",
"address_purpose": "LOCATION",
"city": "Boston",
"state": "MA",
"postal_code": "021156110",
"country_code": "US",
"telephone_number": "617-732-5500",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LANGHAMMER",
"first_name": "CHRISTOPHER",
"middle_name": "GRESHAM",
"name_prefix": "Dr.",
"credential": "M.D., PH.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2012-04-06",
"last_updated": "2025-07-02",
"certification_date": "2025-07-02",
"status": "A"
},
"taxonomies": [
{
"code": "207XS0106X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery, Hand Surgery",
"state": "CA",
"license": "A128855",
"primary": false
},
{
"code": "207XS0106X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery, Hand Surgery",
"state": "MA",
"license": "270305",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Hunt Valley, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 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.