Diana Phan, M.D.
NPI 1972869311 · Anesthesiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Phan, M.D. is a Anesthesiology Physician provider in Chicago, IL (NPI 1972869311).
Provider details
- NPI number
- 1972869311
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 129197 (CA)
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
14 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
- 2012-04-10
- Last updated
- 2016-08-08
Frequently asked questions
- What is Diana Phan's NPI number?
- Diana Phan's National Provider Identifier (NPI) is 1972869311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Phan's specialty?
- Diana Phan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Phan located?
- Diana Phan's practice location on file with NPPES is 1740 W Taylor St, Chicago, IL 60612-7232.
- What is Diana Phan's phone number?
- The practice phone number listed in the NPPES registry for Diana Phan is (312) 996-4021.
- Does Diana Phan accept Medicare?
- Diana Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Phan's NPI active?
- Yes — Diana Phan's NPI (1972869311) is active in the NPPES registry as of the last update on 2016-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.