DR. JOHN D PASSALARIS MD
NPI 1154351666
Internal Medicine - Cardiovascular Disease in Princeton, NJ

Q: What is John Passalaris's NPI number?

The NPI number for John Passalaris is 1154351666. It was assigned to this individual provider in the NPPES registry on July 3, 2006. The provider is also known as John Dimitrios Passalaris MD.

Q: What is John Passalaris's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for John Passalaris was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.

Active since July 03, 2006PECOS EnrolledAccepts Medicare Assignment

86.83/100

CMS Quality Rating

389 WALL ST, PRINCETON, NJ 08540(609) 921-2800(609) 921-3499 Get Directions Write a Review

NPPES record last updated: December 23, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. John D Passalaris Md NPPES

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

DR. JOHN D PASSALARIS MD (NPI 1154351666) is an individual cardiovascular disease provider in Princeton, New Jersey, licensed in New Jersey (25MA07224100) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of State University Of Ny Upstate Medical University (1994).

NPPES Registry Identity

NPI1154351666

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. JOHN D PASSALARISCredential: MD

Location Address389 WALL STPrinceton, NJ 08540-1516

Mailing Address389 Wall StPrinceton, NJ 08540-1516 · (609) 921-2800 · Fax (609) 921-3499

Phone(609) 921-2800

Fax(609) 921-3499

Sole ProprietorNo

Medical School CMSState University Of Ny Upstate Medical UniversityGraduated 1994

Enumeration DateJuly 3, 2006

Last NPPES UpdateDecember 23, 2025

NPPES CertifiedDecember 23, 2025

✔ NPI 1154351666 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 NJ · 25MA07224100

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 ListedNuclear Medicine · Nuclear CardiologyTaxonomy 207UN0901X · License 25MA07224100 (NJ)

389 WALL ST, Princeton, NJ 08540

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Other Names 1

Professional Name (2)John Dimitrios Passalaris Md

Other Identifiers 18

Other2080707000PA · Keystone Health Plan

Other223258770Beechstreet

Other2080707000Amerihealth Hmo

Other223258770United Health Care

Other1391578Amerihealth Admin Ppo

Other223258770Aarp Health Insurance

Other223258770Great West

Other223258770Magna Care

Other2K2546Healthnet

Medicaid8561605NJ

OtherP2523822Oxford Health Plans

Other223258770Ghi

Other060063735Railroad Medicare

Other232258770Cigna

Other2607048Aetna Us Healthcare

Other1391578PA · Blue Shield Pa

Other223258770NJ · Horzon Bcbs Of Nj

Other223258770Devon

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

Dr. John D Passalaris 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 ID7719016492

PECOS Enrollment IDI20100701000435

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 22

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 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.

1,010 services627 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.

718 services490 patients

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.

527 services442 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.

380 services253 patients

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

144 services36 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.

131 services131 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

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.

106 services106 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.

103 services103 patients

Technetium tc-99m tetrofosmin, diagnostic, per study dose A9502

Technetium Tc-99m Tetrofosmin is a radiopharmaceutical used in diagnostic imaging. It helps highlight areas of concern in the heart by emitting signals captured by a special camera. This assists doctors in detecting heart conditions.

83 services83 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.

65 services65 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

57 services38 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

53 services51 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

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.

50 services21 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.

42 services19 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

35 services35 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

30 services30 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

21 services21 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

19 services14 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.

17 services17 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.

17 services17 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.

16 services16 patients

Electrocardiogram (ecg) 2-day continuous 93225

An Electrocardiogram (ECG) 2-day continuous is a non-invasive test that records the electrical activity of your heart over 48 hours. It helps to detect irregular heart rhythms, heart disease, or other cardiac conditions. You wear a portable device that records heart activity as you go about your daily activities.

14 services14 patients

Hospital Affiliations CMS Care Compare 3

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

University Medical Center Of Princeton At Plainsboro

Acute Care Hospitals · Plainsboro, NJ

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310010

LocationOne-Five Plainsboro RoadPlainsboro, NJ 08536 · Middlesex County

Emergency services Birthing friendly

Saint Peter's University Hospital

Acute Care Hospitals · New Brunswick, NJ

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310070

Location254 Easton AveNew Brunswick, NJ 08901 · Middlesex County

Emergency services Birthing friendly

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390111

Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08540 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

$140.34 typical visit price

range $61.59 – $185.05

Typical copayment $35.08 (range $15.39 – $46.26)

Most-billed visit code 99204

Established Patient

$76.45 typical visit price

range $20.08 – $150.98

Typical copayment $19.11 (range $5.02 – $37.74)

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.

86.83/100

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

Individually scored

Quality

89.54

Improvement Activities

Cost

70.06

Reported Quality Measures

Controlling High Blood Pressure

88%850 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

98%2,909 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

28%1,550 patients2/55-star benchmark: 98%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 29% · 896 patients

29%896 patients

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

88%471 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 1,013 patients

Patients totalRate: 0% · 1,013 patients

0%1,013 patients5/55-star benchmark: 100%

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 7

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

MR. DANIEL F ZIEBEL PT

Physical Therapist