Zavala Internists, S.c.
NPI 1013942283 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zavala Internists, S.c. is a Internal Medicine Physician organization in Chicago, IL (NPI 1013942283).
Provider details
- NPI number
- 1013942283
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gilberto Zavala, President Owner(312) 942-3747
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
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
Other names (DBA / former)
- Former legal business name
- Palmer & Zavala, S.c.
- Former legal business name
- Palmer & Zavala, S.c.
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2020-05-08
- Certified
- 2020-05-08
Frequently asked questions
- What is Zavala Internists, S.c.'s NPI number?
- Zavala Internists, S.c.'s National Provider Identifier (NPI) is 1013942283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Zavala Internists, S.c.?
- Zavala Internists, S.c. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zavala Internists, S.c. located?
- Zavala Internists, S.c.'s practice location on file with NPPES is 1725 W Harrison St, Chicago, IL 60612-3841.
- What is Zavala Internists, S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Zavala Internists, S.c. is (312) 942-6647.
- Does Zavala Internists, S.c. accept Medicare?
- Zavala Internists, S.c. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Zavala Internists, S.c.?
- The authorized official listed on Zavala Internists, S.c.'s NPPES record is Gilberto Zavala, President Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Zavala Internists, S.c.'s NPI active?
- Yes — Zavala Internists, S.c.'s NPI (1013942283) is active in the NPPES registry as of the last update on 2020-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.