Louis Lachman, MD
NPI 1255795274 · Psychiatry Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Lachman, MD is a Psychiatry Physician provider in Bethesda, MD (NPI 1255795274).
Provider details
- NPI number
- 1255795274
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 4301 Jones Bridge RdBethesda, MD 20814-4799Phone: (301) 295-9796
Registry dates
- Enumerated
- 2016-04-06
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Louis Lachman's NPI number?
- Louis Lachman's National Provider Identifier (NPI) is 1255795274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Lachman's specialty?
- Louis Lachman is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Lachman located?
- Louis Lachman's practice location on file with NPPES is 8901 Rockville Pike, Bethesda, MD 20889-0001.
- What is Louis Lachman's phone number?
- The practice phone number listed in the NPPES registry for Louis Lachman is (240) 857-7186.
- Does Louis Lachman accept Medicare?
- Louis Lachman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Lachman's NPI active?
- Yes — Louis Lachman's NPI (1255795274) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.