Subramanian Gnanaguruparan, MD
Cardiovascular Disease Physician · Newark, DE
Subramanian Gnanaguruparan, MD is a cardiovascular disease physician with a practice address in Newark, Delaware, and NPI 1396058533, issued on Jul 16, 2010. Check the license (Delaware C1-0010444, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Subramanian Gnanaguruparan
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- C1-0010444 DE
284558 NY
Self-reported in NPPES; status is on the state search - Practice location
- 620 Stanton Christiana RD Ste 203, Newark, DE 19713
- Phone
- (302) 338-9444
- Enumerated
- Jul 16, 2010
- Record last updated
- Oct 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (302) 994-9449
- Medicaid ID
- 1396058533 DE
- Medicare enrollment
- Enrolled (PECOS I20241205001723); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 102 in Delaware → Look up another NPI →
Also registered at 620 Stanton Christiana RD Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Hannan, FNP-BCFamily Nurse Practitioner1912896069
- Irena Stolar, M.D.Cardiovascular Disease Physician1194896928
Verify Subramanian Gnanaguruparan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0010444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,111 Medicare Part D claims for 252 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium170 claims
- Metoprolol Succinate152 claims
- Eliquis95 claims
- Amlodipine Besylate93 claims
- Hydralazine Hcl43 claims
- Losartan Potassium41 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: $629.26
13 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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 3 group practices
- Christiana Care Health InitiativesWoodstown, NJ
- Christiana Care Health Services IncNewark, DE
- Christiana Care Pennsylvania IncWest Grove, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Subramanian Gnanaguruparan among 102 cardiovascular disease physician records in Delaware
Subramanian Gnanaguruparan, MD is one of 102 cardiovascular disease physician records with a practice address in Delaware. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 82% of them.
- NPI issued2010 · 82% of these records are older, 17% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1995 · median 1993 among the 80 with a school on file
- Record last updated2021 · 66% 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 Delaware 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 Delaware
There are 102 cardiovascular disease physician records in Delaware.
All 102 in Delaware → Every provider in Newark → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Anthony Alfieri, D.O.Newark, DE 197131184604274
- Anthony Clay, D.O.Newark, DE 197131649202573
- Arthur Colbourn, M.D.Newark, DE 197131386611416
- David Grubbs, M.D.Newark, DE 197131497732705
- John Kelly, M.D.Newark, DE 197131659303634
- Gilbert Leidig, M.D.Newark, DE 197131902835770
- Alan Micklin, M.D.Newark, DE 197131477582518
- Francis Palermo, M.D.Newark, DE 197131467553982
Common questions
What is Subramanian Gnanaguruparan, MD's NPI number?
Subramanian Gnanaguruparan, MD's National Provider Identifier (NPI) is 1396058533, issued on Jul 16, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Subramanian Gnanaguruparan, MD located?
The NPPES record lists a practice address at 620 Stanton Christiana RD Ste 203, Newark, DE, 19713. Phone: (302) 338-9444. Providers update this record themselves, so call before visiting.
How can I verify Subramanian Gnanaguruparan, MD's license?
NPPES lists Delaware license number C1-0010444, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Subramanian Gnanaguruparan, MD prescribe under Medicare Part D?
In 2024, Subramanian Gnanaguruparan, MD had 1,111 Medicare Part D claims for 252 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.