DR. GREGORY K SUN DO
NPI 1821529751
Emergency Medicine in Syracuse, NY

Q: What is Gregory Sun's NPI number?

The NPI number for Gregory Sun is 1821529751. It was assigned to this individual provider in the NPPES registry on March 22, 2017.

Q: What is Gregory Sun'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 Gregory Sun was last updated on June 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 22, 2017PECOS EnrolledAccepts Medicare Assignment

750 EAST ADAMS ST, SYRACUSE, NY 13210(315) 464-4363(315) 464-8690 Get Directions Write a Review

NPPES record last updated: June 19, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 19, 2020, Mar 22, 2017 (2 updates tracked since 2017).

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About Dr. Gregory K Sun Do NPPES

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

DR. GREGORY K SUN DO (NPI 1821529751) is an individual emergency medicine provider in Syracuse, New York, licensed in New York (302373) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Newton Medical Center, and is a graduate of Rowan University School Of Osteopathic Medicine (2017).

NPPES Registry Identity

NPI1821529751

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. GREGORY K SUNCredential: DO

Location Address750 EAST ADAMS STSyracuse, NY 13210

Mailing Address251 Salina Meadows Pkwy Ste 100Syracuse, NY 13212-4516 · (315) 464-2000 · Fax (315) 464-2010

Phone(315) 464-4363

Fax(315) 464-8690

Sole ProprietorNo

Medical School CMSRowan University School Of Osteopathic MedicineGraduated 2017

Enumeration DateMarch 22, 2017

Last NPPES UpdateJune 19, 20202 updates tracked since enumeration

NPPES CertifiedJune 19, 2020

✔ NPI 1821529751 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 · 302373

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

750 EAST ADAMS ST, Syracuse, NY 13210

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory K Sun Do 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 ID5092146043

PECOS Enrollment IDI20210624001993

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.

Medicare Billing Reassignments

Medicare enrollment records show Gregory Sun reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Upstate Emergency Medicine, Inc

0.1 mi

Emergency Medicine

750 E. ADAMS ST.
Syracuse, NY 13210

Reassigned Medicare billing, New York enrollment
170 clinicians in this Medicare group

NPI 1275589582 (315) 464-4363

Newton Emergency Medical Associates LLC

154 mi

Emergency Medicine

175 HIGH ST, NEWTON HOSPITAL
Newton, NJ 07860

Reassigned Medicare billing, New Jersey enrollment
59 clinicians in this Medicare group

NPI 1306118344 (954) 939-5000

Hackettstown Emergency Medical Associates LLC

165 mi

Emergency Medicine

651 WILLOW GROVE ST
Hackettstown, NJ 07840

Reassigned Medicare billing, New Jersey enrollment
49 clinicians in this Medicare group

NPI 1558768473 (954) 939-5000

Morristown Emergency Medical Associates LLC

216 mi

Emergency Medicine

901 W MAIN ST
Freehold, NJ 07728

Reassigned Medicare billing, New Jersey enrollment
123 clinicians in this Medicare group

NPI 1649541087 (954) 939-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.

355 services334 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.

154 services148 patients

Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.

111 services108 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.

33 services31 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

30 services29 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.

30 services30 patients

Hospital Affiliations CMS Care Compare

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

Newton Medical Center

Acute Care Hospitals · Newton, NJ

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310028

Location175 High StNewton, NJ 07860 · Sussex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 13210 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

$84.93 typical visit price

range $54.87 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$97.08 typical visit price

range $17.54 – $136.14

Typical copayment $24.27 (range $4.38 – $34.03)

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.

NICHOLAS ZACCOR MD,PHD

Otolaryngology