I. Robert Horowitz, M.D., P.A.
NPI 1700116803 · Dermatology Physician · Rockville, MD
I. Robert Horowitz, M.D., P.A. is a Dermatology Physician organization in Rockville, MD (NPI 1700116803).
Provider details
- NPI number
- 1700116803
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Irvin Horowitz, President(301) 468-9090
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
Mailing address
Registry dates
- Enumerated
- 2010-01-12
- Last updated
- 2010-01-12
Frequently asked questions
- What is I. Robert Horowitz, M.D., P.A.'s NPI number?
- I. Robert Horowitz, M.D., P.A.'s National Provider Identifier (NPI) is 1700116803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is I. Robert Horowitz, M.D., P.A.?
- I. Robert Horowitz, M.D., P.A. is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is I. Robert Horowitz, M.D., P.A. located?
- I. Robert Horowitz, M.D., P.A.'s practice location on file with NPPES is 121 Congressional Ln, Rockville, MD 20852-1542.
- What is I. Robert Horowitz, M.D., P.A.'s phone number?
- The practice phone number listed in the NPPES registry for I. Robert Horowitz, M.D., P.A. is (301) 468-9090.
- Who is the authorized official for I. Robert Horowitz, M.D., P.A.?
- The authorized official listed on I. Robert Horowitz, M.D., P.A.'s NPPES record is Irvin Horowitz, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is I. Robert Horowitz, M.D., P.A.'s NPI active?
- Yes — I. Robert Horowitz, M.D., P.A.'s NPI (1700116803) is active in the NPPES registry as of the last update on 2010-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.