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Active NPI 1801860804 Individual Practitioner Male Practitioner

Dr. Jonathan Young Ko , MD

Anesthesiology • Newark, NJ

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Jonathan Ko, MD is a certified Anesthesiology practicing in Newark, NJ. With approximately 25 years of clinical experience since completing medical education in 2001, Dr. Ko delivers high-quality medical care to the local community at 185 S ORANGE AVE.

Dr. Ko is affiliated with Ramapo Anesthesiologists, Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure on large bowel using an endoscope, anesthesia for procedure in upper abdomen including use of an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

185 S Orange Ave

Newark, NJ 071032757

Telephone 9739725007
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

2001

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Newark, NJ

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
25 Yrs +2.5 yrs vs City Avg
City Avg: 22.5 Yrs
State Avg: 26.2 Yrs
Regional Practice Density
84 Specialists

Practicing in Newark, NJ (1783 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
93.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ko (25 Years) 25 Yrs
Newark Specialty Average (22.5 Years) 22.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope
24 24 $2314.20 $161.69
00811 Anesthesia for procedure on large bowel using an endoscope
13 13 $2071.60 $144.92
00790 Anesthesia for procedure in upper abdomen including use of an endoscope
11 11 $5894.37 $321.37

Medical Specialties & State Licenses

CMS Verified: 2026-07-10
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License NJ 25MA07926700

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

State License NY 231494-1

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
0084221 (NJ)

Hospital & Practice Group Affiliations

Ramapo Anesthesiologists, Pc

255 Lafayette Ave, Suffern, NY 109014812

Phone: 8453575775

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

9 Associated Practitioners
Dr. Anna Korban , MD

Anesthesiology

NPI 1003158718

Doctor of Medicine (M.D.)

Dr. Dan Chen , MD

Anesthesiology

NPI 1033747167

Doctor of Medicine (M.D.)

NPI 1104321306

Doctor of Medicine (M.D.)

NPI 1356630198

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

NPI 1407182660

Doctor of Medicine (M.D.)

Dr. Mark Stein , MD

Anesthesiology

NPI 1417039074

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
📍
Updated Practice Location July 10, 2026

Registered at 185 S ORANGE AVE, NEWARK, NJ 071032757 (Tel: 9739725007)

NPI Profile Active October 09, 2012

NPI status registered as active in NPPES database

📍
Updated Practice Location October 09, 2012

Registered at 1 GUSTAVE L LEVY PL, ANESTHESIOLOGY - BOX 1010, NEW YORK, NY 100296500 (Tel: 8006274470)

📍
Updated Business Mailing Address October 09, 2012

Registered at PO BOX 12023, NEWARK, NJ 071015023 (Tel: 2124272666)

👤
Provider Name / Credentials Updated October 09, 2012

Recorded as JONATHAN KO, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 09, 2012

Anesthesiology (License #231494-1 in NY)

🟢
Initial NPI Registration & Enumeration February 15, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1801860804
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 15, 2006
Last Update: July 10, 2026
Sole Proprietor: Yes

Mailing Address

Po Box 12023

Newark, NJ 071015023

Phone: 2124272666

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.