Active NPI 1386840874 Individual Practitioner Male Practitioner

Dr. John Walton Simmons , MD

Surgery • Cartersville, GA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Simmons, MD is a certified Surgery practicing in Cartersville, GA. With approximately 20 years of clinical experience since graduating from Texas A & M University System, Hsc, College Of Medicine in 2006, Dr. Simmons delivers high-quality medical care to the local community at 150 GENTILLY BLVD.

Dr. Simmons is affiliated with Harbin Clinic Llc and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

150 Gentilly Blvd

Cartersville, GA 301208522

Telephone 7703825919

Fax 6787214386

Associated Practice Facility / Clinic

🏢 Harbin Clinic, Llc Facility NPI 1609084250

Medicare Profile & Education

Medical School

Texas A & M University System, Hsc, College Of Medicine

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Cartersville, GA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

20 Yrs -5.2 yrs vs City Avg

City Avg: 25.2 Yrs

State Avg: 26.6 Yrs

Regional Practice Density

10 Specialists

Practicing in Cartersville, GA (1046 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

66.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Simmons (20 Years) 20 Yrs

Cartersville Specialty Average (25.2 Years) 25.2 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
99231 Follow-up hospital inpatient care per day, typically 15 minutes	95	38	$70.00	$43.68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	41	41	$340.00	$148.44
99213 Established patient office or other outpatient visit, typically 15 minutes	33	23	$110.00	$82.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$160.00	$104.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$160.00	$119.06
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	11	11	$1350.00	$238.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	102	36	$70.00	$45.85
99213 Established patient office or other outpatient visit, typically 15 minutes	62	40	$107.90	$84.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	53	52	$304.06	$152.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$158.00	$106.31
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	15	$975.00	$176.50
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	14	14	$1374.29	$243.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$206.54	$126.01
76937 Ultrasonic guidance for blood vessel access	13	13	$50.00	$13.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11042 Removal of skin and tissue, 20.0 sq cm or less	75	18	$290.00	$57.57
99213 Established patient office or other outpatient visit, typically 15 minutes	62	40	$105.00	$84.87
99213 Established patient office or other outpatient visit, typically 15 minutes	47	18	$105.00	$64.19
99231 Follow-up hospital inpatient care per day, typically 15 minutes	39	14	$70.00	$37.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	36	36	$295.00	$190.02
76937 Ultrasonic guidance for blood vessel access	32	31	$50.00	$12.55
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	24	19	$2000.00	$223.34
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$155.00	$91.93
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	16	16	$45.00	$16.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$240.00	$160.25
49324 Insertion of abdominal cavity catheter using an endoscope	11	11	$860.00	$274.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	54	49	$295.00	$193.64
99213 Established patient office or other outpatient visit, typically 15 minutes	52	40	$105.00	$86.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$155.00	$105.94
76937 Ultrasonic guidance for blood vessel access	25	23	$50.00	$13.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	14	$152.50	$116.38
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	14	13	$790.00	$83.48
49324 Insertion of abdominal cavity catheter using an endoscope	12	11	$860.00	$358.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$238.64	$161.30

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	77	27	$110.00	$72.13
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	45	45	$295.00	$197.45
99213 Established patient office or other outpatient visit, typically 15 minutes	41	34	$105.00	$72.57
99213 Established patient office or other outpatient visit, typically 15 minutes	39	14	$105.00	$51.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$155.00	$104.34
76937 Ultrasonic guidance for blood vessel access	38	35	$50.00	$14.55
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	19	18	$790.00	$82.46
49324 Insertion of abdominal cavity catheter using an endoscope	17	17	$860.00	$361.56
49326 Suture of internal abdominal lining using an endoscope	16	15	$415.00	$183.28
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	16	16	$3750.00	$337.66
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	15	13	$2133.33	$266.31
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	15	14	$45.00	$18.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$155.00	$104.75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	38	36	$295.00	$200.24
76937 Ultrasonic guidance for blood vessel access	28	26	$50.00	$13.71
99213 Established patient office or other outpatient visit, typically 15 minutes	25	20	$105.00	$71.60
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	23	20	$790.00	$85.78
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	23	12	$110.00	$72.00
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	21	20	$45.00	$17.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$235.00	$160.00
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	17	$65.00	$43.10
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	12	$205.00	$132.63
49324 Insertion of abdominal cavity catheter using an endoscope	12	12	$860.00	$350.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$150.00	$105.09

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	97	37	$110.00	$58.68
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	49	47	$205.00	$133.75
76937 Ultrasonic guidance for blood vessel access	41	37	$50.00	$13.90
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	40	36	$45.00	$17.80
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	38	33	$790.00	$94.31
99231 Follow-up hospital inpatient care per day, typically 15 minutes	35	18	$70.00	$37.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$155.00	$103.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$235.00	$158.13
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	18	$65.00	$37.69
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	19	$295.00	$188.42
36415 Insertion of needle into vein for collection of blood sample	20	12	$15.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$105.00	$65.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$150.00	$102.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99221 Initial hospital inpatient care per day, typically 30 minutes	25	22	$145.00	$98.63
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	11	$70.00	$38.14
99202 New patient office or other outpatient visit, typically 20 minutes	19	19	$105.00	$69.17

Medical Specialties & State Licenses

CMS Verified: 2025-07-08

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License GA 077434

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 MT 160207

Hospital & Practice Group Affiliations

Harbin Clinic Llc

150 Gentilly Blvd, Cartersville, GA 301208522

Phone: 4704907470

Secondary Practice Locations

1199 Prince Avenue

Athens, GA 30606

Phone: 7064755076

1333 Surgical Services Drive

Kalispell, MT 599014844

Phone: 4067515392

Practice Associates & Co-Workers

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

3 Associated Practitioners

Dr. Thomas Gilbert , MD

Surgery

NPI 1174684690

Doctor of Medicine (M.D.)

Dr. Gregory Mcdonald , MD

Surgery

NPI 1689736456

Doctor of Medicine (M.D.)

Dr. Suzanne Alsayed , MD

Internal Medicine - Rheumatology

NPI 1790845030

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

12 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2025

Surgery (License #160207 in MT)

✅

NPI Profile Active May 01, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location May 01, 2017

Registered at 150 GENTILLY BLVD, CARTERSVILLE, GA 301208522 (Tel: 7703825919)

📍

Updated Business Mailing Address May 01, 2017

Registered at 221 TECHNOLOGY PKWY NW, ROME, GA 301651369 (Tel: 7062955331)

👤

Provider Name / Credentials Updated May 01, 2017

Recorded as JOHN SIMMONS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 01, 2017

Surgery (License #077434 in GA)

✅

NPI Profile Active January 13, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location January 13, 2015

Registered at WOMACK ARMY MEDICAL CTR, FORT BRAGG, NC 283106200 (Tel: 2104124862)

📍

Updated Business Mailing Address January 13, 2015

Registered at WOMACK ARMY MEDICAL CTR, FORT BRAGG, NC 283106200 (Tel: 2104124862)

👤

Provider Name / Credentials Updated January 13, 2015

Recorded as JOHN SIMMONS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 13, 2015

Surgery (License #181721 in NC)

🟢

Initial NPI Registration & Enumeration June 22, 2007

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: 1386840874

Entity Type:

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

Enumeration Date: June 22, 2007

Last Update: July 08, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

221 Technology Pkwy Nw

Rome, GA 301651369

Phone: 7062955331

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.