Active NPI 1841227352 Individual Practitioner Male Practitioner

Dr. John C Kollar , DO

Surgery • Saddle Brook, NJ

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Kollar, DO is a certified Surgery practicing in Saddle Brook, NJ. With approximately 39 years of clinical experience since graduating from Rowan University School Of Osteopathic Medicine in 1987, Dr. Kollar delivers high-quality medical care to the local community at 449B MARKET ST.

Dr. Kollar is affiliated with Bergen County Improvement Authority and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, established patient outpatient office visit, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

449b Market St

Saddle Brook, NJ 076635941

Telephone 2017127900

Fax 2017127902

Associated Practice Facility / Clinic

🏢 Bergen Laparoscopic And General Surgery Pa Facility NPI 1336185131

Medicare Profile & Education

Medical School

Rowan University School Of Osteopathic Medicine

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Saddle Brook, NJ

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

39 Yrs Matches City Avg

City Avg: 39.0 Yrs

State Avg: 26.9 Yrs

Regional Practice Density

1 Specialists

Practicing in Saddle Brook, NJ (815 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

24.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Kollar (39 Years) 39 Yrs

Saddle Brook Specialty Average (39.0 Years) 39.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	36	16	$102.00	$83.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	12	$160.00	$139.92
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$260.00	$183.41
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$185.00	$138.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$250.00	$182.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	23	$160.00	$140.78
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	31	13	$102.00	$84.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$213.91	$133.57
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$265.79	$182.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	53	22	$160.00	$143.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$250.00	$186.03
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	11	$185.00	$145.00
99213 Established patient office or other outpatient visit, typically 15 minutes	12	12	$120.00	$101.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	61	23	$164.43	$144.01
13160 Second repair of surgical wound	12	12	$1200.00	$636.53
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$260.00	$217.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$277.27	$172.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	17	$168.97	$122.30
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	17	17	$338.24	$220.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$200.00	$182.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	17	$140.00	$116.22
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	41	21	$102.00	$75.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	33	31	$260.00	$210.17
99234 Hospital observation or inpatient care low severity, 40 minutes per day	25	20	$175.00	$138.30
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$200.00	$175.31
13160 Second repair of surgical wound	13	12	$1200.00	$559.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	11	$102.00	$73.93
99213 Established patient office or other outpatient visit, typically 15 minutes	25	11	$104.40	$76.28
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	20	$392.00	$206.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$200.00	$170.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	13	$183.68	$112.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	15	$314.71	$138.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	57	22	$102.00	$72.66
99213 Established patient office or other outpatient visit, typically 15 minutes	27	14	$90.00	$75.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$223.81	$168.57
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	19	19	$260.00	$204.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	14	$130.00	$111.13
99234 Hospital observation or inpatient care low severity, 40 minutes per day	16	15	$175.00	$134.41
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$185.00	$137.76

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License NJ MB52216

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

5499208 (NJ)

Hospital & Practice Group Affiliations

Bergen County Improvement Authority

230 E Ridgewood Ave, Paramus, NJ 076524142

Phone: 2019674000

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Edwin Sullivan , DO FACOS

Urology

NPI 1477580306

DOFACOS

Dr. Mahnaz Tantawi , MD

Internal Medicine

NPI 1699823328

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active January 27, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location January 27, 2010

Registered at 449B MARKET ST, SADDLE BROOK, NJ 076635941 (Tel: 2017127900)

📍

Updated Business Mailing Address January 27, 2010

Registered at 449B MARKET ST, SADDLE BROOK, NJ 076635941 (Tel: 2017127900)

👤

Provider Name / Credentials Updated January 27, 2010

Recorded as JOHN KOLLAR, DO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 27, 2010

Surgery (License #MB52216 in NJ)

🟢

Initial NPI Registration & Enumeration June 28, 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: 1841227352

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 28, 2006

Last Update: January 27, 2010

Sole Proprietor: No

Update or Correct Profile

Mailing Address

449b Market St

Saddle Brook, NJ 076635941

Phone: 2017127900

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.