Balu Natarajan MD Sc
NPI 1437350592 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Balu Natarajan MD Sc is a Internal Medicine Physician organization in Chicago, IL (NPI 1437350592).
Provider details
- NPI number
- 1437350592
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Balakrishnan Natarajan, President(312) 616-7778
- License
- 036101773 (IL)
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
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
Registry dates
- Enumerated
- 2007-05-29
- Last updated
- 2016-02-19
Frequently asked questions
- What is Balu Natarajan MD Sc's NPI number?
- Balu Natarajan MD Sc's National Provider Identifier (NPI) is 1437350592, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Balu Natarajan MD Sc?
- Balu Natarajan MD Sc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Balu Natarajan MD Sc located?
- Balu Natarajan MD Sc's practice location on file with NPPES is 711 W North Ave, Chicago, IL 60610-7010.
- What is Balu Natarajan MD Sc's phone number?
- The practice phone number listed in the NPPES registry for Balu Natarajan MD Sc is (312) 616-7778.
- Does Balu Natarajan MD Sc accept Medicare?
- Balu Natarajan MD Sc 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 Balu Natarajan MD Sc?
- The authorized official listed on Balu Natarajan MD Sc's NPPES record is Balakrishnan Natarajan, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Balu Natarajan MD Sc's NPI active?
- Yes — Balu Natarajan MD Sc's NPI (1437350592) is active in the NPPES registry as of the last update on 2016-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.