Christopher Ratnasamy, MD
Interventional Cardiology Physician · Grand Rapids, MI
Christopher Ratnasamy, MD is an interventional cardiology physician with a practice address in Grand Rapids, Michigan, and NPI 1043411721, issued on May 30, 2007. Check the license (Michigan 4301104221, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Christopher Ratnasamy
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- 4301104221 MI
Self-reported in NPPES; status is on the state search - Practice location
- 25 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 267-9150
- Enumerated
- May 30, 2007
- Record last updated
- Apr 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140107001260); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 197 in Michigan → Look up another NPI →
Also registered at 25 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christie Adams, PA-CPhysician Assistant1700213782
- Allison Amidon, NPNurse Practitioner1356749337
- John Anema, M.D.Urology Physician1053411215
- Gazelle Animalia, FNPNurse Practitioner1235145087
- Navyasree Arepalli, MDFamily Medicine Physician1255686267
- Amal Ashraf, M.D.Internal Medicine Physician1164653275
Verify Christopher Ratnasamy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301104221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
50 Medicare Part D claims, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Metoprolol Succinate15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $44.08
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Ratnasamy among 197 interventional cardiology physician records in Michigan
Christopher Ratnasamy, MD is one of 197 interventional cardiology physician records with a practice address in Michigan. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 41% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated1997 · median 2001 among the 178 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Michigan
There are 197 interventional cardiology physician records in Michigan.
All 197 in Michigan → Every provider in Grand Rapids → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- William Merhi, DOGrand Rapids, MI 495031386786044
- Joseph Vettukattil, MDGrand Rapids, MI 495031619217890
- Matthew LaceyWyoming, MI 495191821529850
- Duane Berkompas, MDGrand Rapids, MI 495251174521116
- James Collins, MDGrand Rapids, MI 495251679692206
- Mark Jacoby, MDGrand Rapids, MI 495251871544551
- Timothy Joseph, M.D.Grand Rapids, MI 495251013328236
- Richard McNamara, M.D.Grand Rapids, MI 495251528049111
Common questions
What is Christopher Ratnasamy, MD's NPI number?
Christopher Ratnasamy, MD's National Provider Identifier (NPI) is 1043411721, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Ratnasamy, MD located?
The NPPES record lists a practice address at 25 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 267-9150. Providers update this record themselves, so call before visiting.
How can I verify Christopher Ratnasamy, MD's license?
NPPES lists Michigan license number 4301104221, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Ratnasamy, MD prescribe under Medicare Part D?
In 2024, Christopher Ratnasamy, MD had 50 Medicare Part D claims; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
What is Christopher Ratnasamy, MD's MIPS final score?
The 2023 MIPS final score is 86.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.