Mary Langley, MD
NPI 1497861751 · Psychiatry Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Langley, MD is a Psychiatry Physician provider in Chicago, IL (NPI 1497861751).
Provider details
- NPI number
- 1497861751
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
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
19 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2006-08-21
- Last updated
- 2007-07-20
Frequently asked questions
- What is Mary Langley's NPI number?
- Mary Langley's National Provider Identifier (NPI) is 1497861751, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Langley's specialty?
- Mary Langley is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Langley located?
- Mary Langley's practice location on file with NPPES is 820 S Damen Ave, Chicago, IL 60612-3728.
- What is Mary Langley's phone number?
- The practice phone number listed in the NPPES registry for Mary Langley is (312) 569-6551.
- Does Mary Langley accept Medicare?
- Mary Langley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Langley's NPI active?
- Yes — Mary Langley's NPI (1497861751) is active in the NPPES registry as of the last update on 2007-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.