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

Active since May 31, 2005PECOS Enrolled
6569 N CHARLES ST, SUITE 600, TOWSON, MD 21204(410) 602-9262(410) 602-9276 Get Directions Write a Review

NPPES record last updated: August 23, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Thomas Guarnieri M.d. NPPES

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

DR. THOMAS GUARNIERI M.D. (NPI 1275536591) is an individual clinical cardiac electrophysiology provider in Towson, Maryland, licensed in Maryland (D0018334) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275536591
Entity TypeIndividualMale
Primary Taxonomy207RC0001X
Provider Legal NameDR. THOMAS GUARNIERICredential: M.D.
Location Address6569 N CHARLES ST, SUITE 600Towson, MD 21204-6831
Mailing Address1838 Greene Tree Rd, Ste 150llBaltimore, MD 21208-6391 · (410) 602-9262 · Fax (410) 602-9276
Phone(410) 602-9262
Fax(410) 602-9276
Sole ProprietorNo
Enumeration DateMay 31, 2005
Last NPPES UpdateAugust 23, 2010
✔ NPI 1275536591 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RC0001X
License✔ Licensed in MD · D0018334
Definition
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.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License D0018334 (MD)
6569 N CHARLES ST, Towson, MD 21204
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Other Identifiers 3

Medicare UPINB67102MD
Medicare ID-Type Unspecified000L023AMD
Medicaid316801800MD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thomas Guarnieri M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 9

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.

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.
581 services437 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.
251 services228 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.
129 services129 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.
94 services93 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.
38 services38 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.
18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21204 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
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 20

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

DR. JOHN R SAUNDERS JR. M.D.
Surgery (Surgical Oncology)
6569 N CHARLES ST, SUITE 401
BALTIMORE, MD 21204
Baltimore County (443) 849-8940
DR. GINNY M MERRYMAN M.D.
Obstetrics & Gynecology
6569 N CHARLES ST, SUITE 501
BALTIMORE, MD 21204
Baltimore County (410) 938-8960
GHASSAN G SINADA D.D.S.
Dentist (Oral and Maxillofacial Surgery)
6569 N CHARLES ST, PPW SUITE 601
BALTIMORE, MD 21204
Baltimore County (443) 519-5293
DANIEL A SHERWOOD SLP
Speech-Language Pathologist
6569 N CHARLES ST, PHYSICIANS PAVILION WEST, SUITE 401
BALTIMORE, MD 21204
Baltimore County (443) 849-2087
GREATER BALTIMORE MEDICAL CENTER, INC.
Ophthalmology
6569 N CHARLES ST, SUITE 305
BALTIMORE, MD 21204
Baltimore County (443) 849-2658
DR. MARY LOUISE COLLINS M.D.
Ophthalmology
6569 N CHARLES ST, SUITE 505
BALTIMORE, MD 21204
Baltimore County (443) 849-2196
DR. TANVI M. SHAH M.D.
Ophthalmology
6569 N CHARLES ST, PPW SUITE 505
BALTIMORE, MD 21204
Baltimore County (443) 849-2106
DR. DAVID PATRICK COLL M.D.
Surgery (Vascular Surgery)
6569 N CHARLES ST, STE 701
BALTIMORE, MD 21204
Baltimore County (443) 849-3431

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 Thomas Guarnieri's NPI number?

The NPI number for Thomas Guarnieri is 1275536591. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is Thomas Guarnieri located?

Thomas Guarnieri practices at 6569 N Charles St Suite 600, Towson, MD 21204. The listed phone number is (410) 602-9262.

What is Thomas Guarnieri's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Thomas Guarnieri enrolled in Medicare?

Yes. Thomas Guarnieri is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Thomas Guarnieri was last updated on August 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.