Ramanathan Nagappan, MD
NPI 1821197435 · Cardiovascular Disease Physician · Lansing, MI
Ramanathan Nagappan, MD is a Cardiovascular Disease Physician provider in Lansing, MI (NPI 1821197435).
Provider details
- NPI number
- 1821197435
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 43149 (MI)
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
- 2006-09-21
- Last updated
- 2011-06-06
Frequently asked questions
- What is Ramanathan Nagappan's NPI number?
- Ramanathan Nagappan's National Provider Identifier (NPI) is 1821197435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramanathan Nagappan's specialty?
- Ramanathan Nagappan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ramanathan Nagappan located?
- Ramanathan Nagappan's practice location on file with NPPES is 1200 E Michigan Ave Ste 725, Lansing, MI 48912-1832.
- What is Ramanathan Nagappan's phone number?
- The practice phone number listed in the NPPES registry for Ramanathan Nagappan is (517) 364-5599.
- Is Ramanathan Nagappan's NPI active?
- Yes — Ramanathan Nagappan's NPI (1821197435) is active in the NPPES registry as of the last update on 2011-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.