IndividualActive
Claude Cowan
NPI 1861598013 · Ophthalmology Physician · Washington, DC
Claude Cowan is a Ophthalmology Physician provider in Washington, DC (NPI 1861598013).
Provider details
- NPI number
- 1861598013
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 08098 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
3800 Reservoir Rd Nw
Washington, DC 20007-2113
Phone: (202) 444-4448
Street-level locationGet directions
Mailing address
Po Box 631856
Baltimore, MD 21263-1856
Registry dates
- Enumerated
- 2006-09-15
- Last updated
- 2007-11-14
Frequently asked questions
- What is Claude Cowan's NPI number?
- Claude Cowan's National Provider Identifier (NPI) is 1861598013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claude Cowan's specialty?
- Claude Cowan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Claude Cowan located?
- Claude Cowan's practice location on file with NPPES is 3800 Reservoir Rd Nw, Washington, DC 20007-2113.
- What is Claude Cowan's phone number?
- The practice phone number listed in the NPPES registry for Claude Cowan is (202) 444-4448.
- Is Claude Cowan's NPI active?
- Yes — Claude Cowan's NPI (1861598013) is active in the NPPES registry as of the last update on 2007-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.