Active NPI 1164461505 Individual Practitioner Male Practitioner

Dr. Patrick Farrell Hammen , MD

Colon & Rectal Surgery • Smyrna, GA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Hammen, MD is a certified Colon & Rectal Surgery practicing in Smyrna, GA. With approximately 34 years of clinical experience since graduating from Mercer University School Of Medicine in 1992, Dr. Hammen delivers high-quality medical care to the local community at 4441 ATLANTA RD SE STE 312.

Dr. Hammen is affiliated with Wellstar Medical Group Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, diagnostic examination of the anus using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4441 Atlanta Rd Se Ste 312

Smyrna, GA 30080

Telephone 4709564200

Medicare Profile & Education

Medical School

Mercer University School Of Medicine

Graduation Year

1992

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Smyrna, GA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

34 Yrs +9.5 yrs vs City Avg

City Avg: 24.5 Yrs

State Avg: 26.0 Yrs

Regional Practice Density

2 Specialists

Practicing in Smyrna, GA (81 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

61.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hammen (34 Years) 34 Yrs

Smyrna Specialty Average (24.5 Years) 24.5 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
99213 Established patient office or other outpatient visit, typically 15 minutes	47	30	$209.00	$92.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$269.50	$110.93
46600 Diagnostic examination of the anus using an endoscope	26	24	$352.31	$116.39
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	12	$96.29	$49.94
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	12	$878.00	$186.05
44204 Partial removal of large bowel using an endoscope	11	11	$2821.96	$1206.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	42	25	$196.79	$89.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$248.06	$113.05
46600 Diagnostic examination of the anus using an endoscope	25	19	$313.84	$122.08
99231 Follow-up hospital inpatient care per day, typically 15 minutes	15	11	$90.80	$47.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$388.00	$167.76

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	37	37	$227.73	$113.12
99213 Established patient office or other outpatient visit, typically 15 minutes	35	23	$163.77	$91.48
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	14	$78.35	$38.53
46600 Diagnostic examination of the anus using an endoscope	15	12	$277.47	$125.67
99441 Telephone medical discussion with physician, 5-10 minutes	14	14	$100.14	$56.45
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$1209.62	$241.14
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$295.45	$134.41

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	30	30	$218.00	$109.24
99213 Established patient office or other outpatient visit, typically 15 minutes	22	17	$147.00	$93.15
46600 Diagnostic examination of the anus using an endoscope	15	12	$188.00	$119.78
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$270.00	$137.01
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$331.00	$160.59
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	12	12	$1109.00	$250.80

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	32	32	$218.00	$107.53
99213 Established patient office or other outpatient visit, typically 15 minutes	23	18	$147.00	$76.76
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	11	$76.00	$40.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	15	14	$141.00	$74.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	52	23	$76.00	$39.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$218.00	$106.32
99213 Established patient office or other outpatient visit, typically 15 minutes	19	11	$147.00	$75.04
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$270.00	$138.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	14	$76.59	$39.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	49	24	$80.00	$38.14
46600 Diagnostic examination of the anus using an endoscope	45	37	$235.00	$80.88
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	36	36	$1499.00	$185.07
99213 Established patient office or other outpatient visit, typically 15 minutes	36	30	$126.00	$69.28
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	34	27	$87.00	$40.61
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	17	$128.00	$70.01
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	27	27	$1499.00	$184.38
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	27	25	$318.00	$196.71
45380 Biopsy of large bowel using an endoscope	24	24	$961.00	$155.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	15	$183.00	$101.86
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$188.00	$102.38
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	16	16	$1239.00	$256.63
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$948.00	$186.07

Medical Specialties & State Licenses

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License GA 043383

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

000791392C (GA)

Medicaid State Provider ID

000791392B (GA)

Medicaid State Provider ID

G43383 (SC)

Medicaid State Provider ID

000791392A (GA)

Commercial Insurance / Payer ID Railroad Medicare

280000998 (GA)

Commercial Insurance / Payer ID Amerigroup

10065608 (GA)

Commercial Insurance / Payer ID Wellcare

349778 (GA)

Hospital & Practice Group Affiliations

Wellstar Medical Group Llc

4441 Atlanta Rd Se, Smyrna, GA 300806537

Phone: 4709564200

Secondary Practice Locations

4750 Waters Ave, Suite 103

Savannah, GA 314046200

Phone: 9123508712

4750 Waters Ave, Suite 103

Savannah, GA 314046200

Phone: 9123508712

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Anushka Arumugasaamy , MD

Colon & Rectal Surgery

NPI 1902196629

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location October 09, 2019

Registered at 4441 ATLANTA RD SE STE 312, SMYRNA, GA 30080 (Tel: 4709564200)

📍

Updated Business Mailing Address October 09, 2019

Registered at 4441 ATLANTA RD SE STE 312, SMYRNA, GA 300806443 (Tel: 4709564200)

✅

NPI Profile Active October 29, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location October 29, 2014

Registered at 4750 WATERS AVE, SUITE 103, SAVANNAH, GA 314046200 (Tel: 9123508712)

📍

Updated Business Mailing Address October 29, 2014

Registered at 4750 WATERS AVE, SUITE 103, SAVANNAH, GA 314046200 (Tel: 9123508712)

👤

Provider Name / Credentials Updated October 29, 2014

Recorded as PATRICK HAMMEN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 29, 2014

Colon & Rectal Surgery (License #043383 in GA)

🟢

Initial NPI Registration & Enumeration June 04, 2006

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. Patrick Hammen. 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: 1164461505

Entity Type:

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

Enumeration Date: June 04, 2006

Last Update: October 09, 2019

Sole Proprietor: No

Update or Correct Profile

Mailing Address

4441 Atlanta Rd Se Ste 312

Smyrna, GA 300806443

Phone: 4709564200

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.