RAMSES M. THABET NASIF M.D.
NPI 1689014284
Internal Medicine - Cardiovascular Disease in Worcester, MA

NPI Status: Active since June 27, 2013

Contact Information

123 SUMMER ST
STE #290 N
WORCESTER, MA
ZIP 01608
Phone: (508) 368-3130
Fax: (508) 368-3167

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  • Individual
  • Male
  • Years of Experience 20
  • Internal Medicine
  • Cardiovascular Disease
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About RAMSES THABET NASIF

This page provides the complete NPI Profile along with additional information for Ramses Thabet Nasif, an internist established in Worcester, Massachusetts with a medical specialization in Internal Medicine, focusing in cardiovascular disease and more than 20 years of experience. The healthcare provider is registered in the NPI registry with number 1689014284 assigned on June 2013. The practitioner's primary taxonomy code is 207RC0000X with license number 282899 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1689014284
Provider Name
RAMSES M. THABET NASIF M.D.
Gender
Male
Entity Type
Individual
Location Address
123 SUMMER ST STE #290 N WORCESTER, MA 01608
Location Phone
(508) 368-3130
Location Fax
(508) 368-3167
Mailing Address
5 NEPONSET ST MERCANTILE CENTER 12TH FLOOR WORCESTER, MA 01606
Mailing Phone
(508) 852-0600
Medical School Name
OTHER
Graduation Year
2006
Is Sole Proprietor?
Yes
Enumeration Date
06-27-2013
Last Update Date
09-12-2025
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An internist like Ramses Thabet Nasif is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Cardiovascular Disease

Taxonomy Code
207RC0000X
Type
Allopathic & Osteopathic Physicians
License No.
282899
License State
MA
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RI0011XAllopathic & Osteopathic Physicians

Internal Medicine
Interventional Cardiology

282899 (MA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Anthem Bronze Access Blue New England HMO 6000/20%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7500/30%/10000 Value - HMO
  • Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
  • Anthem Gold Access Blue New England HMO 1000/20%/7500 - HMO
  • Anthem Gold Access Blue New England HMO 2000/0%/6500 RxD - HMO
  • Anthem Gold Access Blue New England HMO 2000/10%/4600 w/HSA - HMO
  • Anthem Gold Access Blue New England HMO 2000/10%/7500 - HMO
  • Anthem Gold Access Blue New England HMO 2000/20%/4600 w/HSA - HMO
  • Anthem Gold Access Blue New England HMO 3000/0%/7500 RxD - HMO
  • Anthem Gold Access Blue New England HMO 500/30%/9000 - HMO
  • Anthem Platinum Access Blue New England HMO 250/10%/3500 - HMO
  • Anthem Silver Access Blue New England HMO 2500/30%/10000 Value - HMO
  • Anthem Silver Access Blue New England HMO 3000/30%/9000 Value - HMO
  • Anthem Silver Access Blue New England HMO 3500/20%/10000 - HMO
  • Anthem Silver Access Blue New England HMO 3500/20%/7250 w/HSA - HMO
  • Anthem Silver Access Blue New England HMO 4000/0%/9000 - HMO
  • Anthem Silver Access Blue New England HMO 4000/0%/9000 RxD - HMO
  • Anthem Silver Access Blue New England HMO 4000/10%/7250 w/HSA - HMO
  • Anthem Silver Access Blue New England HMO 4000/20%/8500 - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Ramses Thabet Nasif is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Ramses Thabet Nasif is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9638597222

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20200914002404

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE013N)

    Automatic external defibrillator, with integrated electrocardiogram analysis, garment type (HCPCS:K0606)

    1 DME suppliers used 14 Medicare Claims 14 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Coronary angioplasty and stenting

Coronary angioplasty and stenting is a procedure to open narrowed or blocked heart arteries. A thin tube is inserted into a blood vessel, usually in the leg or arm, and guided to the heart. A small balloon at the end of the tube is inflated to widen the artery. A stent, a small wire mesh tube, may be placed in the artery to keep it open.

This service was performed for 13 patients

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 29 times for 14 patients

Established patient office or other outpatient visit, 40-54 minutes

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.

This service was performed 321 times for 171 patients

Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days

This service involves remotely monitoring your heart and blood vessel implant system for up to 30 days. Using advanced technology, healthcare professionals can track the device's performance and your health status, ensuring the system is working optimally for your needs.

This service was performed 45 times for 12 patients

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

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

This service was performed 27 times for 13 patients

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

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

This service was performed 53 times for 53 patients

Follow-up hospital inpatient care per day, typically 35 minutes

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.

This service was performed 24 times for 24 patients

Initial hospital inpatient care per day, typically 70 minutes

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.

This service was performed 115 times for 108 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

This service was performed 27 times for 27 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 34 times for 34 patients

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

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.

This service was performed 67 times for 67 patients

Pacemaker insertion or repair

Pacemaker insertion or repair is a procedure to help regulate your heartbeat. A small device, called a pacemaker, is implanted under the skin near your heart. This device sends electrical signals to prompt your heart to beat at a normal rate. In a repair procedure, the pacemaker may be adjusted, replaced, or the wires connecting it to your heart may be fixed.

This service was performed for 1-10 patients

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

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.

This service was performed 355 times for 192 patients

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

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.

This service was performed 363 times for 293 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

This service was performed 13 times for 13 patients

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

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.

This service was performed 119 times for 112 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $33.61 for a new patient copayment and $18.3 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 01608 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $134.47
  • Minimum New Patient Price $58.86
  • Maximum New Patient Price $177.36
  • Average New Patient Copayment $33.61
  • Minimum New Patient Copayment $14.71
  • Maximum New Patient Copayment $44.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $73.22
  • Minimum Established Patient Price $19.11
  • Maximum Established Patient Price $144.84
  • Average Established Patient Copayment $18.3
  • Minimum Established Patient Copayment $4.77
  • Maximum Established Patient Copayment $36.21

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Ramses Thabet Nasif is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
UMASS MEMORIAL HEALTHALLIANCE HOSPITALS60 HOSPITAL ROAD
LEOMINSTER, MA 01453
(978) 466-2000Acute Care Hospitals
UMASS MEMORIAL MEDICAL CENTER/UNIVERSITY CAMPUS55 LAKE AVENUE NORTH
WORCESTER, MA 01655
(508) 334-1000Acute Care Hospitals
ST VINCENT HOSPITAL123 SUMMER STREET
WORCESTER, MA 01608
(508) 363-5000Acute Care Hospitals

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1689014284, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 8 → 16 → 7 0 → 0 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 1 + 6 + 9 + 0 + 1 + 8 + 2 + 1 + 6 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1689014284.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Specialist
123 SUMMER ST, STE 685
WORCESTER, MA 01608
Obstetrics & Gynecology
123 SUMMER ST, SUITE 150 S
WORCESTER, MA 01608
Internal Medicine (Cardiovascular Disease)
123 SUMMER ST, SUITE 660
WORCESTER, MA 01608
Internal Medicine (Gastroenterology)
123 SUMMER ST, SUITE 650
WORCESTER, MA 01608
Specialist
123 SUMMER ST, SUITE #655
WORCESTER, MA 01608
Orthopaedic Surgery (Hand Surgery)
123 SUMMER ST, STE 320
WORCESTER, MA 01608
Obstetrics & Gynecology
123 SUMMER ST, SUITE 150 S
WORCESTER, MA 01608
Advanced Practice Midwife
123 SUMMER ST, ST. VINCENT HOSPITAL
WORCESTER, MA 01608
Psychiatry & Neurology (Neurology)
123 SUMMER ST, SUITE 230 S
WORCESTER, MA 01608
Advanced Practice Midwife
123 SUMMER ST, SUITE 150 S
WORCESTER, MA 01608
Anesthesiology
123 SUMMER ST
WORCESTER, MA 01608
Internal Medicine (Cardiovascular Disease)
123 SUMMER ST, SUITE 290 N
WORCESTER, MA 01608
Psychiatry & Neurology (Neurology)
123 SUMMER ST, STE 695
WORCESTER, MA 01608
Emergency Medicine
123 SUMMER ST, DEPARTMENT OF EMERGENCY MEDICINE
WORCESTER, MA 01608
Surgery (Vascular Surgery)
123 SUMMER ST, SUITE 210
WORCESTER, MA 01608
Advanced Practice Midwife
123 SUMMER ST
WORCESTER, MA 01608
Internal Medicine (Cardiovascular Disease)
123 SUMMER ST, STE 273
WORCESTER, MA 01608
Internal Medicine
123 SUMMER ST, SUITE 370
WORCESTER, MA 01608
Pediatrics
123 SUMMER ST, SUITE 690
WORCESTER, MA 01608
Pediatrics
123 SUMMER ST, SUITE 690
WORCESTER, MA 01608

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689014284, enumerated as an "individual" on June 27, 2013.

The provider is located at 123 SUMMER ST STE #290 N WORCESTER, MA 01608 and the phone number is (508) 368-3130.

Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.

The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield. Please consult your insurance carrier or call the provider to verify.

Ramses Thabet Nasif is affiliated with: UMASS MEMORIAL HEALTHALLIANCE HOSPITALS, UMASS MEMORIAL MEDICAL CENTER/UNIVERSITY CAMPUS and ST VINCENT HOSPITAL.