HARIHARAN SUBRAMANIAN M.D.
NPI 1801080080
Internal Medicine - Cardiovascular Disease in Holyoke, MA

Q: What is Hariharan Subramanian's NPI number?

The NPI number for Hariharan Subramanian is 1801080080. It was assigned to this individual provider in the NPPES registry on August 30, 2007.

Q: What is Hariharan Subramanian's specialty?

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

Active since August 30, 2007PECOS EnrolledAccepts Medicare Assignment

97.02/100

CMS Quality Rating

575 BEECH ST, 1ST FLOOR, HOLYOKE, MA 01040(413) 534-2870 Get Directions Write a Review

NPPES record last updated: February 19, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Hariharan Subramanian M.d. NPPES

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

HARIHARAN SUBRAMANIAN M.D. (NPI 1801080080) is an individual cardiovascular disease provider in Holyoke, Massachusetts, licensed in Massachusetts (260980) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1801080080

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameHARIHARAN SUBRAMANIANCredential: M.D.

Location Address575 BEECH ST, 1ST FLOORHolyoke, MA 01040-2223

Mailing Address575 Beech St, 1st FloorHolyoke, MA 01040-2223 · (413) 534-2870

Phone(413) 534-2870

Sole ProprietorNo

Medical School CMSOtherGraduated 2000

Enumeration DateAugust 30, 2007

Last NPPES UpdateFebruary 19, 2016

✔ NPI 1801080080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in MA · 260980

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 MD432082 (PA)

575 BEECH ST, Holyoke, MA 01040

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hariharan Subramanian M.d. 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 ID4789770264

PECOS Enrollment IDI20141020002249

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.

Areas of Expertise CMS Part B claims 20

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.

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.

1,460 services1,115 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.

597 services387 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.

495 services482 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.

162 services157 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.

158 services102 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

128 services51 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

116 services111 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.

101 services101 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

61 services60 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.

52 services49 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.

46 services46 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

33 services33 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

29 services26 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

22 services21 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

17 services16 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

15 services15 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

14 services14 patients

Injection of x-ray contrast during ultrasound of heart 93352

This procedure involves injecting a special dye into your bloodstream during a heart ultrasound. This dye, visible on X-rays, helps create clearer images of your heart's structure and function. It's safe and assists in diagnosing heart conditions accurately.

13 services13 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring, transmission and review and report by health care professional 93272

An Electrocardiogram (ECG) is a test that records the electrical activity of your heart. For up to 30 days, a device will continuously monitor your heart's rhythm, noting any symptoms. The data is sent to a healthcare professional who reviews it and provides a report on your heart health.

12 services12 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220015

Location30 Locust StreetNorthampton, MA 01060 · Hampshire County

Emergency services Birthing friendly

Holyoke Medical Center

Acute Care Hospitals · Holyoke, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220024

Location575 Beech StreetHolyoke, MA 01040 · Hampden County

Emergency services

Mercy Medical Ctr

Acute Care Hospitals · Springfield, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220066

Location271 Carew StreetSpringfield, MA 01104 · Hampden County

Emergency services Birthing friendly

Baystate Medical Center

Acute Care Hospitals · Springfield, MA

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220077

Location759 Chestnut StreetSpringfield, MA 01199 · Hampden County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01040 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$73.22 typical visit price

range $19.11 – $144.84

Typical copayment $18.30 (range $4.77 – $36.21)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.02/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

78.09

Promoting Interoperability

100

Improvement Activities

Leave this field empty

Other Providers at the Same Location NPPES 20

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

MARISSA CHIAPPERINO MPH,RD,CSO,CDE,CNSC

Dietitian, Registered

575 BEECH ST
HOLYOKE, MA 01040

Hampden County (845) 279-1135

MRINAL S MALI M.D.

Radiology (Diagnostic Radiology)

575 BEECH ST, HOLYOKE MEDICAL CENTER
HOLYOKE, MA 01040

Hampden County (413) 534-2523

PIYUSH R JOHARI M.D.

Psychiatry & Neurology (Psychiatry)

575 BEECH ST, 5TH FLOOR
HOLYOKE, MA 01040

Hampden County (413) 534-2697

ASHLEY M LANDRY PA-C

Physician Assistant

575 BEECH ST
HOLYOKE, MA 01040

Hampden County (413) 534-2500

ROENGSAK TULATHIMUTTE MD

Anesthesiology

575 BEECH ST, ANESTHESIA DEPT
HOLYOKE, MA 01040

Hampden County (413) 534-2845

DR. MARIAN ISAAK MD

Internal Medicine

575 BEECH ST
HOLYOKE, MA 01040

Hampden County (413) 534-2500

VAMSEEDHAR ALLA M.D.

Internal Medicine

575 BEECH ST
HOLYOKE, MA 01040

Hampden County (413) 534-2500

HOLYOKE MEDICAL CENTER, INC.

Psychiatric Unit

575 BEECH ST
HOLYOKE, MA 01040

Hampden County (413) 534-2805

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 Hariharan Subramanian's NPI number?

The NPI number for Hariharan Subramanian is 1801080080. It was assigned to this individual provider in the NPPES registry on August 30, 2007.

Where is Hariharan Subramanian located?

Hariharan Subramanian practices at 575 Beech St 1st Floor, Holyoke, MA 01040. The listed phone number is (413) 534-2870.

What is Hariharan Subramanian's specialty?

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

Is Hariharan Subramanian enrolled in Medicare?

Yes. Hariharan Subramanian 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.

Is Hariharan Subramanian affiliated with any hospitals?

According to CMS data, Hariharan Subramanian is affiliated with Cooley Dickinson Hospital Inc,the, Holyoke Medical Center, Mercy Medical Ctr and Baystate Medical Center.

When was this NPI record last updated?

The NPPES record for Hariharan Subramanian was last updated on February 19, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.