DR. THOMAS GUARNIERI M.D.
NPI 1275536591
Internal Medicine - Clinical Cardiac Electrophysiology in Towson, MD

NPI Status: Active since May 31, 2005

Contact Information

6569 N CHARLES ST
SUITE 600
TOWSON, MD
ZIP 21204
Phone: (410) 602-9262
Fax: (410) 602-9276

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  • Individual
  • Male
  • Internal Medicine
  • Clinical Cardiac Electrophysiology
  • PECOS Enrolled

About THOMAS GUARNIERI

This page provides the complete NPI Profile along with additional information for Thomas Guarnieri, an internist established in Towson, Maryland with a medical specialization in Internal Medicine, focusing in clinical cardiac electrophysiology . The healthcare provider is registered in the NPI registry with number 1275536591 assigned on May 2005. The practitioner's primary taxonomy code is 207RC0001X with license number D0018334 (MD). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1275536591
Provider Name
DR. THOMAS GUARNIERI M.D.
Gender
Male
Entity Type
Individual
Location Address
6569 N CHARLES ST SUITE 600 TOWSON, MD 21204
Location Phone
(410) 602-9262
Location Fax
(410) 602-9276
Mailing Address
1838 GREENE TREE RD STE 150LL BALTIMORE, MD 21208
Mailing Phone
(410) 602-9262
Mailing Fax
(410) 602-9276
Is Sole Proprietor?
No
Enumeration Date
05-31-2005
Last Update Date
08-23-2010
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An internist like Thomas Guarnieri 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.

Location Map

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 Clinical Cardiac Electrophysiology

Taxonomy Code
207RC0001X
Type
Allopathic & Osteopathic Physicians
License No.
D0018334
License State
MD
Taxonomy Description
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

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)
1207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

D0018334 (MD)

Insurance Plans Accepted

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

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

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

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
B67102MEDICARE UPIN (02)MD 
000L023AMEDICARE ID-TYPE UNSPECIFIED (04)MD 
316801800MEDICAID (05)MD 

Medicare Participation & PECOS Enrollment Status

Thomas Guarnieri 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

  • 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

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.

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 978 times for 669 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 46 times for 44 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 12 times for 12 patients

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

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.

This service was performed 30 times for 30 patients

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

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

This service was performed 12 times for 12 patients

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

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.

This service was performed 20 times for 17 patients

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

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.

This service was performed 33 times for 33 patients

New patient office or other outpatient visit, 45-59 minutes

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.

This service was performed 142 times for 142 patients

Programming of dual lead pacemaker system

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.

This service was performed 49 times for 39 patients

Programming of single lead pacemaker system

Programming of a single lead pacemaker system involves adjusting the pacemaker's settings to suit your heart's unique needs. This is done using a special device that communicates with the pacemaker, ensuring it helps your heart beat at an optimal rate.

This service was performed 23 times for 16 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 433 times for 361 patients

Ultrasound of heart blood flow, valves and chambers, follow-up

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

This service was performed 18 times for 18 patients

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

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.

This service was performed 12 times for 12 patients

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

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

This service was performed 18 times for 18 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 112 times for 112 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 198 times for 193 patients

Ultrasound of heart, follow-up

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.

This service was performed 14 times for 14 patients

Ultrasound of heart, follow-up

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.

This service was performed 18 times for 18 patients

Physician Visit Costs

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 21204 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $139.05
  • Minimum New Patient Price $60.73
  • Maximum New Patient Price $183.44
  • Average New Patient Copayment $34.76
  • Minimum New Patient Copayment $15.18
  • Maximum New Patient Copayment $45.86

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $106.59
  • Minimum Established Patient Price $19.6
  • Maximum Established Patient Price $149.17
  • Average Established Patient Copayment $26.64
  • Minimum Established Patient Copayment $4.9
  • Maximum Established Patient Copayment $37.29

* 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.

Reviews for DR. THOMAS GUARNIERI M.D.

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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 1275536591, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 7 → 14 → 5 5 → 10 → 1 6 → 12 → 3 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 1 + 0 + 3 + 1 + 2 + 5 + 1 + 8 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1275536591.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
6569 N CHARLES ST, STE 600
TOWSON, MD 21204
Specialist
6569 N CHARLES ST, SUITE 502
TOWSON, MD 21204
Surgery (Surgical Oncology)
6569 N CHARLES ST, STE 401
BALTIMORE, MD 21204
Ophthalmology
6569 N CHARLES ST, SUITE 605
BALTIMORE, MD 21204
Internal Medicine (Medical Oncology)
6569 N CHARLES ST, SUITE 201
BALTIMORE, MD 21204
Internal Medicine (Medical Oncology)
6569 N CHARLES ST, SUITE 201
BALTIMORE, MD 21204
Internal Medicine (Medical Oncology)
6569 N CHARLES ST, SUITE 201
BALTIMORE, MD 21204
Internal Medicine (Medical Oncology)
6569 N CHARLES ST, SUITE 201
BALTIMORE, MD 21204
Ophthalmology
6569 N CHARLES ST, STE 505
BALTIMORE, MD 21204
Surgery (Vascular Surgery)
6569 N CHARLES ST, STE 701
BALTIMORE, MD 21204
Ophthalmology
6569 N CHARLES ST, STE 505
BALTIMORE, MD 21204
Ophthalmology
6569 N CHARLES ST, STE 305
BALTIMORE, MD 21204
Ophthalmology
6569 N CHARLES ST, SUITE 505
BALTIMORE, MD 21204
Obstetrics & Gynecology (Gynecology)
6569 N CHARLES ST, STE 307
BALTIMORE, MD 21204
Surgery (Vascular Surgery)
6569 N CHARLES ST, STE 701
BALTIMORE, MD 21204
Surgery (Vascular Surgery)
6569 N CHARLES ST, STE 701
BALTIMORE, MD 21204
Obstetrics & Gynecology (Gynecologic Oncology)
6569 N CHARLES ST, SUITE 306
BALTIMORE, MD 21204
Surgery (Surgical Oncology)
6569 N CHARLES ST, SUITE 401
BALTIMORE, MD 21204
Obstetrics & Gynecology
6569 N CHARLES ST, STE 304
BALTO, MD 21204
Ophthalmology
6569 N CHARLES ST
BALTIMORE, MD 21204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275536591, enumerated as an "individual" on May 31, 2005.

The provider is located at 6569 N CHARLES ST SUITE 600 TOWSON, MD 21204 and the phone number is (410) 602-9262.

Internal Medicine with taxonomy code 207RC0001X and a focus in Clinical Cardiac Electrophysiology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.