Frank Wen, MD, PHD
NPI 1316511678 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank Wen, MD, PHD is a Internal Medicine Physician provider in Chicago, IL (NPI 1316511678).
Provider details
- NPI number
- 1316511678
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125.078243 (IL)
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
5 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
- 2021-05-19
- Last updated
- 2023-06-13
- Certified
- 2023-06-13
Frequently asked questions
- What is Frank Wen's NPI number?
- Frank Wen's National Provider Identifier (NPI) is 1316511678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frank Wen's specialty?
- Frank Wen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frank Wen located?
- Frank Wen's practice location on file with NPPES is 5841 S Maryland Ave Ste Mc2115, Chicago, IL 60637-1443.
- What is Frank Wen's phone number?
- The practice phone number listed in the NPPES registry for Frank Wen is (773) 702-6840.
- Does Frank Wen accept Medicare?
- Frank Wen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frank Wen's NPI active?
- Yes — Frank Wen's NPI (1316511678) is active in the NPPES registry as of the last update on 2023-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.