Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JOHN DELEON MD
NPI 1245297654
Radiology - Diagnostic Ultrasound in Waterbury, CT

Active since April 28, 2006PECOS Enrolled
100/100
CMS Quality Rating
134 GRANDVIEW AVE, STE 101, WATERBURY, CT 06708(203) 756-8911(203) 574-0548 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About John Deleon Md NPPES

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

JOHN DELEON MD (NPI 1245297654) is an individual diagnostic ultrasound provider in Waterbury, Connecticut, licensed in Connecticut (040870) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of City University Of New York School Of Medicine (1993).

NPPES Registry Identity

NPI1245297654
Entity TypeIndividualMale
Primary Taxonomy2085U0001X
Provider Legal NameJOHN DELEONCredential: MD
Location Address134 GRANDVIEW AVE, STE 101Waterbury, CT 06708
Mailing Address134 Grandview AveWaterbury, CT 06708 · (203) 756-8911 · Fax (203) 574-0548
Fax(203) 574-0548
Sole ProprietorNo
Medical School CMSCity University Of New York School Of MedicineGraduated 1993
Enumeration DateApril 28, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1245297654 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyRadiology · Diagnostic UltrasoundAllopathic & Osteopathic Physicians
Taxonomy Code2085U0001X
License Licensed in CT · 040870
Definition

A Radiology doctor of Osteopathy that specializes in Diagnostic Ultrasound.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 040870 (CT)
134 GRANDVIEW AVE, Waterbury, CT 06708

Other Identifiers 5

Other711609Ct Care
OtherA437740Oxford
Other010040870CT01Anthem
Other06091160802Tricare
OtherOR0365Healthnet

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

John Deleon 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 ID547201733
PECOS Enrollment IDI20060828000406
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 58

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.

Injection, gadobutrol, 0.1 ml A9585
Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.
5,980 services70 patients
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
1,120 services12 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
418 services287 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
287 services248 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
193 services181 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
185 services185 patients

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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques
Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…
100%907 patients
Radiology: Reminder System for Screening Mammograms
Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram
100%216 patients
Radiology: Stenosis Measurement in Carotid Imaging Reports
Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…
99%89 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

Dentist (General Practice)
134 GRANDVIEW AVE, SUITE 102
WATERBURY, CT 06708
Nurse Practitioner (Obstetrics & Gynecology)
134 GRANDVIEW AVE, SUITE 210
WATERBURY, CT 06708
Advanced Practice Midwife
134 GRANDVIEW AVE
WATERBURY, CT 06708
Pathology (Anatomic Pathology & Clinical Pathology)
134 GRANDVIEW AVE, SUITE 108
WATERBURY, CT 06708
Pathology (Anatomic Pathology & Clinical Pathology)
134 GRANDVIEW AVE, SUITE 108
WATERBURY, CT 06708
Advanced Practice Midwife
134 GRANDVIEW AVE, SUITE 210
WATERBURY, CT 06708
Physician Assistant (Medical)
134 GRANDVIEW AVE
WATERBURY, CT 06708
Nurse Practitioner
134 GRANDVIEW AVE, SUITE 202
WATERBURY, CT 06708

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 John Deleon's NPI number?

The NPI number for John Deleon is 1245297654. It was assigned to this individual provider in the NPPES registry on April 28, 2006.

Where is John Deleon located?

John Deleon practices at 134 Grandview Ave Ste 101, Waterbury, CT 06708. The listed phone number is (203) 756-8911.

What is John Deleon's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Ultrasound, with taxonomy code 2085U0001X.

Is John Deleon enrolled in Medicare?

Yes. John Deleon 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.

When was this NPI record last updated?

The NPPES record for John Deleon was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.