Alejandro Vallejo, DO
NPI 1356030167 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alejandro Vallejo, DO is a Internal Medicine Physician provider in Chicago, IL (NPI 1356030167).
Provider details
- NPI number
- 1356030167
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 125081894 (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
3 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
- 2023-05-08
- Last updated
- 2023-05-21
- Certified
- 2023-05-21
Frequently asked questions
- What is Alejandro Vallejo's NPI number?
- Alejandro Vallejo's National Provider Identifier (NPI) is 1356030167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alejandro Vallejo's specialty?
- Alejandro Vallejo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alejandro Vallejo located?
- Alejandro Vallejo's practice location on file with NPPES is 1901 W Harrison St, Chicago, IL 60612-3714.
- What is Alejandro Vallejo's phone number?
- The practice phone number listed in the NPPES registry for Alejandro Vallejo is (312) 864-6000.
- Does Alejandro Vallejo accept Medicare?
- Alejandro Vallejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alejandro Vallejo's NPI active?
- Yes — Alejandro Vallejo's NPI (1356030167) is active in the NPPES registry as of the last update on 2023-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.