Active NPI 1912252321 Individual Practitioner Male Practitioner

Dr. Omar Marar , MD

Colon & Rectal Surgery • Phoenix, AZ

Professional Overview & Biography Verified Profile Summary

Dr. Omar Marar, MD is a certified Colon & Rectal Surgery practicing in Phoenix, AZ. With approximately 14 years of clinical experience since completing medical education in 2012, Dr. Marar delivers high-quality medical care to the local community at 6036 N 19TH AVE STE 208.

Dr. Marar does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

6036 N 19th Ave Ste 208

Phoenix, AZ 850152104

Telephone 4808969888

Fax 6029535466

Associated Practice Facility / Clinic

🏢 Valley Surgical Colorectal Specialists Llc Facility NPI 1942167424

Medicare Profile & Education

Medical School

Other

Graduation Year

2012

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Phoenix, AZ

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

14 Yrs -12.2 yrs vs City Avg

City Avg: 26.2 Yrs

State Avg: 27.7 Yrs

Regional Practice Density

19 Specialists

Practicing in Phoenix, AZ (60 Statewide)

Telehealth Adoption Rate

26.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

57.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Marar (14 Years) 14 Yrs

Phoenix Specialty Average (26.2 Years) 26.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2023)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	63	50	$105.00	$84.91
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$150.00	$103.50
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	19	$60.00	$48.65
99441 Telephone medical discussion with physician, 5-10 minutes	23	18	$102.00	$33.93
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$230.00	$160.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	19	$63.00	$49.65
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	17	$193.00	$127.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	16	$152.00	$111.40
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	14	14	$825.00	$245.22
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$665.00	$111.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	79	33	$60.00	$37.99
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	53	21	$101.21	$69.66
99213 Established patient office or other outpatient visit, typically 15 minutes	50	42	$103.70	$86.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$149.41	$109.19
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	22	$191.04	$132.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	22	20	$151.55	$124.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$228.75	$155.33
99441 Telephone medical discussion with physician, 5-10 minutes	15	13	$102.00	$38.96
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$141.50	$98.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	106	64	$60.00	$37.45
99213 Established patient office or other outpatient visit, typically 15 minutes	66	54	$100.00	$87.93
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	34	17	$99.00	$70.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	31	$147.00	$125.82
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$225.00	$163.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	26	26	$188.00	$132.58
43246 Insertion of stomach tube using a flexible endoscope	19	19	$399.00	$166.35
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	15	14	$665.00	$126.78
46600 Diagnostic examination of the anus using an endoscope	14	12	$130.00	$115.40
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$139.00	$98.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	117	60	$53.72	$39.56
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	108	52	$99.00	$72.44
99213 Established patient office or other outpatient visit, typically 15 minutes	63	44	$100.00	$71.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$148.00	$101.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	30	$147.00	$104.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	29	29	$188.00	$137.28
99221 Initial hospital inpatient care per day, typically 30 minutes	22	22	$139.00	$102.49
43246 Insertion of stomach tube using a flexible endoscope	21	21	$399.00	$176.41
46600 Diagnostic examination of the anus using an endoscope	20	20	$130.00	$96.61
99202 New patient office or other outpatient visit, typically 20 minutes	17	17	$102.00	$74.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	211	88	$53.00	$38.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	80	42	$99.00	$71.16
99221 Initial hospital inpatient care per day, typically 30 minutes	63	55	$139.00	$99.40
99213 Established patient office or other outpatient visit, typically 15 minutes	59	41	$100.00	$71.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	59	59	$148.00	$103.01
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	41	$188.00	$134.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	35	$147.00	$104.38
46600 Diagnostic examination of the anus using an endoscope	30	30	$130.00	$90.72
43246 Insertion of stomach tube using a flexible endoscope	29	27	$399.00	$182.13
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$102.00	$73.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	63	25	$53.00	$38.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$148.00	$103.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	23	16	$99.00	$71.40

Medical Specialties & State Licenses

CMS Verified: 2026-04-07

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License MI 4301113819

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Surgery

NUCC Taxonomy Code: 208600000X

State License PA MT202922

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.

Surgery

NUCC Taxonomy Code: 208600000X

State License MI 4301113819

Practice Associates & Co-Workers

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

34 Associated Practitioners

Dr. Scott Hillmann , MD

Surgery

NPI 1023014016

Doctor of Medicine (M.D.)

Dr. Adam Mina , DO

Surgery - Surgical Critical Care

NPI 1053705459

Doctor of Osteopathic Medicine (D.O.)

Dr. Jeffrey Singer , MD

Surgery

NPI 1073541017

Doctor of Medicine (M.D.)

Dr. Luis Hashimoto , MD

Surgery

NPI 1083606883

Doctor of Medicine (M.D.)

Dr. Meghann Kaiser , MD

Surgery - Surgical Critical Care

NPI 1124204177

Doctor of Medicine (M.D.)

Dr. Rima Ahmad , MBBS

Surgery

NPI 1154760742

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Career & Practice History Timeline

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

12 Historical Events

📍

Updated Practice Location April 07, 2026

Registered at 6036 N 19TH AVE STE 208, PHOENIX, AZ 850152104 (Tel: 4808969888)

📍

Updated Business Mailing Address April 07, 2026

Registered at 4022 E GREENWAY RD STE 11-195, PHOENIX, AZ 850324797 (Tel: 4808969888)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 03, 2025

Surgery (License #MT202922 in PA)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 22, 2021

Surgery (License #4301113819 in MI)

📍

Updated Practice Location August 30, 2018

Registered at 912 S WASHINGTON AVE STE 1, SAGINAW, MI 486012578 (Tel: 9897901001)

📍

Updated Business Mailing Address August 30, 2018

Registered at 1000 HOUGHTON AVE, SAGINAW, MI 486025303 (Tel: 9897467500)

✅

NPI Profile Active June 23, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location June 23, 2013

Registered at 94 OLD SHORT HILLS RD, ST. BARNABAS MEDICAL CENTER, LIVINGSTON, NJ 070395672 (Tel: 2154812000)

📍

Updated Business Mailing Address June 23, 2013

Registered at 127 OLD SHORT HILLS RD, APARTMENT 181, WEST ORANGE, NJ 070521014 (Tel: 2159419304)

👤

Provider Name / Credentials Updated June 23, 2013

Recorded as OMAR MARAR, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 23, 2013

Surgery (License #MT202922 in PA)

🟢

Initial NPI Registration & Enumeration July 23, 2012

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Omar Marar. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1912252321

Entity Type:

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

Enumeration Date: July 23, 2012

Last Update: April 07, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

4022 E Greenway Rd Ste 11-195

Phoenix, AZ 850324797

Phone: 4808969888

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.