DR. JONATHAN AUSTIN DEASSIS MD
NPI 1689178980
Emergency Medicine in Stony Brook, NY

Q: What is Jonathan Deassis's NPI number?

The NPI number for Jonathan Deassis is 1689178980. It was assigned to this individual provider in the NPPES registry on March 21, 2018.

Q: What is Jonathan Deassis's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Jonathan Deassis was last updated on May 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since March 21, 2018PECOS EnrolledAccepts Medicare Assignment

101 NICOLLS RD RM 80, STONY BROOK, NY 11794(631) 444-3880(631) 444-3919 Get Directions Write a Review

NPPES record last updated: May 20, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 20, 2021, Mar 21, 2018 (2 updates tracked since 2018).

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About Dr. Jonathan Austin Deassis Md NPPES

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

DR. JONATHAN AUSTIN DEASSIS MD (NPI 1689178980) is an individual emergency medicine provider in Stony Brook, New York, licensed in New York (308087) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai St Luke's Roosevelt Hospital, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1689178980

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. JONATHAN AUSTIN DEASSISCredential: MD

Location Address101 NICOLLS RD RM 80Stony Brook, NY 11794-0001

Mailing Address289 Kramer AveStaten Island, NY 10309-4275 · (347) 907-1776

Phone(631) 444-3880

Fax(631) 444-3919

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMarch 21, 2018

Last NPPES UpdateMay 20, 20212 updates tracked since enumeration

NPPES CertifiedMay 20, 2021

✔ NPI 1689178980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in NY · 308087

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

101 NICOLLS RD RM 80, Stony Brook, NY 11794

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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. Jonathan Austin Deassis 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 ID3072912351

PECOS Enrollment IDI20210519001885

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 5

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

163 services159 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.

153 services143 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

87 services86 patients

Critical care, first 30-74 minutes 99291

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.

28 services28 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Mount Sinai St Luke's Roosevelt Hospital

Acute Care Hospitals · New York, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330046

Location1000 Tenth AvenueNew York, NY 10019 · New York County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11794 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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 5

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

ALEXANDRIA LUCAS PA-C

Physician Assistant