DR. SUBRAMANIAN GNANAGURUPARAN MD
NPI 1396058533
Internal Medicine - Cardiovascular Disease in Newark, DE

Q: What is Subramanian Gnanaguruparan's NPI number?

The NPI number for Subramanian Gnanaguruparan is 1396058533. It was assigned to this individual provider in the NPPES registry on July 16, 2010.

Q: What is Subramanian Gnanaguruparan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Active since July 16, 2010PECOS EnrolledAccepts Medicare Assignment

620 STANTON CHRISTIANA RD STE 203, NEWARK, DE 19713(302) 338-9444(302) 994-9449 Get Directions Write a Review

NPPES record last updated: October 6, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2021, Jun 21, 2021, Nov 16, 2016 (3 updates tracked since 2016).

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About Dr. Subramanian Gnanaguruparan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SUBRAMANIAN GNANAGURUPARAN MD (NPI 1396058533) is an individual cardiovascular disease provider in Newark, Delaware, licensed in Delaware (C1-0010444) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS, is affiliated with Inspira Medical Center Mullica Hill, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1396058533

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. SUBRAMANIAN GNANAGURUPARANCredential: MD

Location Address620 STANTON CHRISTIANA RD STE 203Newark, DE 19713-2130

Mailing Address620 Stanton Christiana Rd Ste 203Newark, DE 19713-2130 · (302) 338-9444 · Fax (302) 994-9449

Phone(302) 338-9444

Fax(302) 994-9449

Sole ProprietorYes

Medical School CMSOtherGraduated 1995

Enumeration DateJuly 16, 2010

Last NPPES UpdateOctober 6, 20213 updates tracked since enumeration

NPPES CertifiedOctober 6, 2021

✔ NPI 1396058533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in DE · C1-0010444

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License 284558 (NY), C1-0010444 (DE)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

620 STANTON CHRISTIANA RD STE 203, Newark, DE 19713

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Other Identifiers 1

Medicaid1396058533DE

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Subramanian Gnanaguruparan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941442248

PECOS Enrollment IDI20130816000155, I20240613001714, I20241205001723

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Subramanian Gnanaguruparan reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Heart & Vascular Clinic, PA

Same address

Cardiovascular Disease

620 STANTON CHRISTIANA RD, SUITE 201, 203
Newark, DE 19713

Reassigned Medicare billing, Delaware enrollment
6 clinicians in this Medicare group

NPI 1851628390 (302) 338-9444

Christiana Care Health Services Inc

0.1 mi

Vascular & Interventional Radiology

4745 STANTON OGLETWN RD
Newark, DE 19713

Reassigned Medicare billing, Delaware enrollment
Also billed through NPI 1568738839 (Delaware), NPI 1245474329 (Delaware), NPI 1760811681 (Delaware)
1,531 clinicians in this Medicare group

NPI 1922078476 (302) 623-7200

Union Hospital Of Cecil County, Inc.

11 mi

Urology

137 W HIGH ST STE 2B
Elkton, MD 21921

Reassigned Medicare billing, Maryland enrollment
512 clinicians in this Medicare group

NPI 1407607450 (410) 398-0451

Christiana Care Pennsylvania Inc

12 mi

Cardiovascular Disease

161 WILMINGTON W CHESTER PIKE
Chadds Ford, PA 19317

Reassigned Medicare billing, Pennsylvania enrollment
217 clinicians in this Medicare group

NPI 1013740745 (610) 361-1144

Christiana Care Health Initiatives

17 mi

Cardiovascular Disease

125 EAST AVE STE D
Woodstown, NJ 08098

Reassigned Medicare billing, New Jersey enrollment
21 clinicians in this Medicare group

NPI 1124531280 (856) 769-3900

Physicians Of University Hospital, PC

95 mi

Geriatric Medicine

375 SEGUINE AVE, 2ND FL.
Staten Island, NY 10309

Reassigned Medicare billing, New York enrollment
530 clinicians in this Medicare group

NPI 1417901323 (718) 226-6789

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 23

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

364 services177 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

173 services154 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

168 services136 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

155 services36 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

123 services105 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

92 services27 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

74 services72 patients

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

72 services29 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

65 services53 patients

Injection, dipyridamole, per 10 mg J1245

Dipyridamole injection is a medication used to prevent blood clots. It's given in doses of 10 mg, typically through an IV. The medication helps to keep your blood flowing smoothly by preventing platelets from clumping together in your veins.

61 services13 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

59 services58 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

49 services40 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

31 services31 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

30 services30 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

30 services30 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

28 services28 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

21 services21 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

20 services20 patients

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229

An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.

20 services20 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

17 services17 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

16 services13 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

11 services11 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Inspira Medical Center Mullica Hill

Acute Care Hospitals · Mullica Hill, NJ

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310069

Location700 Mullica Hill RdMullica Hill, NJ 08062 · Gloucester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19713 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$131.15 typical visit price

range $57.12 – $173.08

Typical copayment $32.78 (range $14.28 – $43.27)

Most-billed visit code 99204

Established Patient

$71.19 typical visit price

range $18.36 – $141.05

Typical copayment $17.79 (range $4.59 – $35.26)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. IRENA O. STOLAR M.D.

Internal Medicine (Cardiovascular Disease)

620 STANTON CHRISTIANA RD STE 203
NEWARK, DE 19713

New Castle County (302) 338-9444

LAUREN HANNAN FNP-BC

Nurse Practitioner (Family)

620 STANTON CHRISTIANA RD STE 203
NEWARK, DE 19713

New Castle County (267) 800-5884

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Subramanian Gnanaguruparan's NPI number?

The NPI number for Subramanian Gnanaguruparan is 1396058533. It was assigned to this individual provider in the NPPES registry on July 16, 2010.

Where is Subramanian Gnanaguruparan located?

Subramanian Gnanaguruparan practices at 620 Stanton Christiana Rd Ste 203, Newark, DE 19713. The listed phone number is (302) 338-9444.

What is Subramanian Gnanaguruparan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Subramanian Gnanaguruparan enrolled in Medicare?

Yes. Subramanian Gnanaguruparan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Subramanian Gnanaguruparan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Subramanian Gnanaguruparan reassigns Medicare benefits to 6 organizations: The Heart & Vascular Clinic, PA (Newark, DE), Christiana Care Health Services Inc (Newark, DE), Union Hospital Of Cecil County, Inc. (Elkton, MD), Christiana Care Pennsylvania Inc (Chadds Ford, PA), Christiana Care Health Initiatives (Woodstown, NJ) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Subramanian Gnanaguruparan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Subramanian Gnanaguruparan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Subramanian Gnanaguruparan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Subramanian Gnanaguruparan affiliated with any hospitals?

According to CMS data, Subramanian Gnanaguruparan is affiliated with Inspira Medical Center Mullica Hill.

When was this NPI record last updated?

The NPPES record for Subramanian Gnanaguruparan was last updated on October 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.