Active NPI
Louis Nathaniel Lachman, MD
- Psychiatry Physician
- Bethesda, MD
National Provider Identifier
1255795274
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 0101264673
- Practice address
- 8901 Rockville Pike
Bethesda, MD 20889-0001 - Phone
- (240) 857-7186
- NPI assigned
- Apr 6, 2016
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| General Practice Physician | 208D00000X | 0101264673 | VA | |
| Psychiatry Physician | 2084P0800X | 0101264673 | VA | Primary |
Addresses
Primary practice location
8901 Rockville Pike
Bethesda, MD 20889-0001
Mailing address
4301 Jones Bridge Rd
Bethesda, MD 20814-4799
Other practice location 1
4301 Jones Bridge Rd
Bethesda, MD 20814-4799
Phone (301) 295-9796
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in VA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20260217001910 | VA | Order and Referring Only - Psychiatry | 6608166558 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0101264673 | VA | MD | Psychiatry Physician |
Interoperability endpoints
- llachman26701@direct.utmsa.com
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1459900800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770595200000",
"number": "1255795274",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4301 JONES BRIDGE RD",
"city": "BETHESDA",
"state": "MD",
"postal_code": "208144799"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8901 ROCKVILLE PIKE",
"city": "BETHESDA",
"state": "MD",
"postal_code": "208890001",
"telephone_number": "240-857-7186"
}
],
"practiceLocations": [
{
"address_1": "4301 Jones Bridge Rd",
"address_purpose": "LOCATION",
"city": "Bethesda",
"state": "MD",
"postal_code": "208144799",
"country_code": "US",
"telephone_number": "301-295-9796",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LACHMAN",
"first_name": "LOUIS",
"middle_name": "NATHANIEL",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2016-04-06",
"last_updated": "2026-02-09",
"certification_date": "2026-02-09",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "VA",
"license": "0101264673",
"primary": false
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "VA",
"license": "0101264673",
"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 Feb 9, 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.