Natarajan Sundaram, MD
NPI 1861580110 · Geriatric Medicine (Internal Medicine) Physician · Columbus, OH
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natarajan Sundaram, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Columbus, OH (NPI 1861580110).
Provider details
- NPI number
- 1861580110
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 3507233 (OH)
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
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Natarajan Sundaram's NPI number?
- Natarajan Sundaram's National Provider Identifier (NPI) is 1861580110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natarajan Sundaram's specialty?
- Natarajan Sundaram is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Natarajan Sundaram located?
- Natarajan Sundaram's practice location on file with NPPES is 6096 E Main St Suite 105, Columbus, OH 43213.
- What is Natarajan Sundaram's phone number?
- The practice phone number listed in the NPPES registry for Natarajan Sundaram is (614) 458-1095.
- Does Natarajan Sundaram accept Medicare?
- Natarajan Sundaram is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natarajan Sundaram's NPI active?
- Yes — Natarajan Sundaram's NPI (1861580110) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.