Diane Washington, M.D.
NPI 1225336399 · Psychiatry Physician · Chicago, IL
Diane Washington, M.D. is a Psychiatry Physician provider in Chicago, IL (NPI 1225336399).
Provider details
- NPI number
- 1225336399
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036-085290 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2011-03-14
- Last updated
- 2011-03-14
Frequently asked questions
- What is Diane Washington's NPI number?
- Diane Washington's National Provider Identifier (NPI) is 1225336399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Washington's specialty?
- Diane Washington is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Washington located?
- Diane Washington's practice location on file with NPPES is 1507 E. 53rd Street, Chicago, IL 60615-4509.
- What is Diane Washington's phone number?
- The practice phone number listed in the NPPES registry for Diane Washington is (630) 328-3571.
- Is Diane Washington's NPI active?
- Yes — Diane Washington's NPI (1225336399) is active in the NPPES registry as of the last update on 2011-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.