What is Russell Horwitz's NPI number?

Russell Horwitz's National Provider Identifier (NPI) is 1477744597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Russell Horwitz's specialty?

Russell Horwitz is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Russell Horwitz located?

Russell Horwitz's practice location on file with NPPES is 8201 Killean Way, Potomac, MD 20854-2728.

What is Russell Horwitz's phone number?

The practice phone number listed in the NPPES registry for Russell Horwitz is (646) 708-1986.

Is Russell Horwitz's NPI active?

Yes — Russell Horwitz's NPI (1477744597) is active in the NPPES registry as of the last update on 2025-06-20.

IndividualActive

Russell Horwitz, MD, PHD

NPI 1477744597 · Psychiatry Physician · Potomac, MD

Russell Horwitz, MD, PHD is a Psychiatry Physician provider in Potomac, MD (NPI 1477744597).

Provider details

NPI number: 1477744597
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD, PHD
Sex: Male
Sole proprietor: No
License: D0076586 (MD)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense D0076586 (MD)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(89/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
18 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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

8201 Killean Way

Potomac, MD 20854-2728

Phone: (646) 708-1986

Street-level locationGet directions

More MD providers

Mailing address