Karthikeyan Ananthasubramaniam, M.D.
Cardiovascular Disease Physician · Detroit, MI
Karthikeyan Ananthasubramaniam, M.D. is a cardiovascular disease physician with a practice address in Detroit, Michigan, and NPI 1801964333, issued on Dec 1, 2006. Check the license (Michigan 4301059145, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Karthikeyan Ananthasubramaniam
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 4301059145 MI
Self-reported in NPPES; status is on the state search - Practice location
- Henry Ford Health System, Detroit, MI 48202
- Phone
- (313) 916-2721
- Enumerated
- Dec 1, 2006
- Record last updated
- Sep 19, 2023
- Fax
- (313) 916-1249
- Medicaid ID
- 413397210 MI
- Medicare enrollment
- Enrolled (PECOS I20090717000362); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 860 in Michigan → Look up another NPI →
Also registered at Henry Ford Health System
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khaled Abdul-Nour, M.D.Cardiovascular Disease Physician1184792608
- Marwan Abouljoud, M.D.Surgery Physician1316000896
- Sanjeev Aggarwal, M.D.Pediatric Cardiology Physician1669480273
- Todd Aho, M.D.Diagnostic Radiology Physician1871661512
- Eyad Akhras, M.D.Internal Medicine Physician1710055231
- Mohsin Alam, M.D.Cardiovascular Disease Physician1356419873
Verify Karthikeyan Ananthasubramaniam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301059145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,064 Medicare Part D claims for 291 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Atorvastatin Calcium244 claims
- Metoprolol Succinate193 claims
- Vyndamax140 claims
- Eliquis118 claims
- Losartan Potassium109 claims
- Spironolactone87 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.
Industry payments in 2024: $26,088.43
21 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Henry Ford Health SystemDetroit, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karthikeyan Ananthasubramaniam among 860 cardiovascular disease physician records in Michigan
Karthikeyan Ananthasubramaniam, M.D. is one of 860 cardiovascular disease physician records with a practice address in Michigan. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 20% of them.
- NPI issued2006 · 20% of these records are older, 44% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1991 · median 1999 among the 606 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Michigan
There are 860 cardiovascular disease physician records in Michigan.
All 860 in Michigan → Every provider in Detroit → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Khaled Abdul-Nour, M.D.Detroit, MI 482021184792608
- Mohammed Abu-Mahfouz, MDDetroit, MI 482021992873418
- Mohsin Alam, M.D.Detroit, MI 482021356419873
- Sidney Goldstein, M.D.Detroit, MI 482021558415901
- Michael Hudson, M.D.Detroit, MI 482021386712826
- Gayathri Iyer, M.D.Detroit, MI 482021003984543
- Henry Kim, M.D.Detroit, MI 482021093883548
- David Lanfear, M.D.Detroit, MI 482021184792632
Common questions
What is Karthikeyan Ananthasubramaniam, M.D.'s NPI number?
Karthikeyan Ananthasubramaniam, M.D.'s National Provider Identifier (NPI) is 1801964333, issued on Dec 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karthikeyan Ananthasubramaniam, M.D. located?
The NPPES record lists a practice address at Henry Ford Health System, Detroit, MI, 48202. Phone: (313) 916-2721. Providers update this record themselves, so call before visiting.
How can I verify Karthikeyan Ananthasubramaniam, M.D.'s license?
NPPES lists Michigan license number 4301059145, 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 Karthikeyan Ananthasubramaniam, M.D. prescribe under Medicare Part D?
In 2024, Karthikeyan Ananthasubramaniam, M.D. had 2,064 Medicare Part D claims for 291 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
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.