Active NPI 1003896531 Individual Practitioner Male Practitioner

Dr. Gary D. Roark , MD

Specialist • Abilene, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gary Roark, MD is a certified Specialist practicing in Abilene, TX. With approximately 46 years of clinical experience since completing medical education in 1980, Dr. Roark delivers high-quality medical care to the local community at 1249 AMBLER AVE.

Dr. Roark is affiliated with Gastroenterology Assoc, Llp and accepts Medicare assignment.

Frequently performed procedures and clinical services include biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare, colorectal cancer screening; colonoscopy on individual at high risk. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1249 Ambler Ave
Suite 200

Abilene, TX 796012351

Telephone 3256772626

Fax 3256776835

Associated Practice Facility / Clinic

🏢 Abilene Asc Lp Facility NPI 1144200163

Medicare Profile & Education

Medical School

Other

Graduation Year

1980

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Abilene, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

46 Yrs Matches City Avg

City Avg: 46.0 Yrs

State Avg: 38.0 Yrs

Regional Practice Density

12 Specialists

Practicing in Abilene, TX (2033 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

80.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Roark (46 Years) 46 Yrs

Abilene Specialty Average (46.0 Years) 46.0 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
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	217	209	$847.00	$103.16
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	167	166	$1186.00	$231.40
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	159	157	$428.00	$163.84
43450 Dilation of esophagus	107	107	$880.00	$36.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	80	80	$166.94	$102.00
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	64	63	$428.00	$162.25
99213 Established patient office or other outpatient visit, typically 15 minutes	63	60	$128.59	$84.62
45380 Biopsy of large bowel using an endoscope	49	49	$1064.73	$155.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	48	48	$191.00	$118.90
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	26	25	$780.00	$108.18
45378 Diagnostic exam of large bowel using a flexible endoscope	24	24	$973.29	$165.56
45381 Injection beneath lining of large bowel using a flexible endoscope	13	13	$1078.00	$27.25
43249 Balloon dilation of esophagus using an endoscope	11	11	$1800.00	$115.08
91110 Imaging of digestive tract done from the inside of the digestive tract	11	11	$1500.00	$640.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	142	141	$847.00	$112.29
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	140	140	$1186.00	$239.97
99213 Established patient office or other outpatient visit, typically 15 minutes	135	102	$129.12	$85.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	100	100	$167.70	$106.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	97	81	$191.00	$122.64
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	88	88	$428.00	$170.29
43450 Dilation of esophagus	83	83	$880.00	$38.03
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	52	52	$428.00	$174.00
45380 Biopsy of large bowel using an endoscope	29	29	$1078.00	$153.64
45378 Diagnostic exam of large bowel using a flexible endoscope	26	26	$953.23	$166.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	165	165	$1186.00	$243.97
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	157	152	$846.57	$111.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	143	143	$165.84	$107.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	119	107	$190.50	$122.84
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	91	91	$428.00	$172.09
99213 Established patient office or other outpatient visit, typically 15 minutes	77	64	$129.92	$87.87
43450 Dilation of esophagus	72	67	$880.00	$38.04
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	60	59	$467.28	$172.78
45380 Biopsy of large bowel using an endoscope	51	50	$1078.00	$124.23
45378 Diagnostic exam of large bowel using a flexible endoscope	27	27	$997.00	$176.56
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	14	13	$780.00	$117.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	136	135	$1186.00	$243.69
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	128	123	$847.00	$117.51
99213 Established patient office or other outpatient visit, typically 15 minutes	93	79	$128.52	$87.84
99202 New patient office or other outpatient visit, typically 20 minutes	90	90	$117.17	$68.39
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	89	89	$166.80	$108.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	84	74	$171.00	$126.50
43450 Dilation of esophagus	79	75	$880.00	$38.52
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	74	74	$435.69	$179.75
45380 Biopsy of large bowel using an endoscope	58	56	$1070.50	$136.21
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	46	46	$428.00	$178.00
45378 Diagnostic exam of large bowel using a flexible endoscope	31	31	$978.65	$155.04
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	14	13	$780.00	$119.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	156	152	$847.00	$118.36
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	127	126	$1185.15	$254.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	126	100	$171.71	$105.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	116	116	$176.17	$104.31
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	70	70	$428.00	$184.51
43450 Dilation of esophagus	68	66	$880.00	$39.31
45380 Biopsy of large bowel using an endoscope	62	61	$1078.00	$136.05
45378 Diagnostic exam of large bowel using a flexible endoscope	51	49	$968.82	$159.80
99213 Established patient office or other outpatient visit, typically 15 minutes	50	45	$131.76	$73.18
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	31	31	$428.00	$185.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$261.05	$158.52
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	14	14	$784.79	$122.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	204	196	$847.41	$125.72
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	171	170	$1185.37	$252.97
43450 Dilation of esophagus	122	116	$880.00	$39.01
99213 Established patient office or other outpatient visit, typically 15 minutes	99	89	$118.78	$72.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	84	78	$173.18	$103.01
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	75	75	$428.00	$186.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	66	66	$165.00	$104.97
45380 Biopsy of large bowel using an endoscope	61	60	$1078.00	$136.20
45378 Diagnostic exam of large bowel using a flexible endoscope	50	50	$987.24	$170.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$245.00	$160.09
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	39	39	$442.59	$186.41
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	18	18	$787.44	$120.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	232	220	$847.00	$128.78
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	162	160	$1184.83	$279.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	132	117	$154.31	$112.57
43450 Dilation of esophagus	109	106	$880.00	$43.54
45380 Biopsy of large bowel using an endoscope	84	84	$1078.00	$153.97
45378 Diagnostic exam of large bowel using a flexible endoscope	71	69	$988.99	$193.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	64	64	$225.63	$173.32
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	63	63	$437.03	$208.98
99213 Established patient office or other outpatient visit, typically 15 minutes	63	59	$101.40	$76.08
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	46	46	$165.00	$113.10
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	41	41	$428.00	$209.30
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	25	25	$780.00	$135.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	280	272	$847.00	$122.26
99213 Established patient office or other outpatient visit, typically 15 minutes	205	176	$98.33	$68.89
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	161	159	$1186.00	$254.11
43450 Dilation of esophagus	114	112	$880.00	$39.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	91	91	$165.00	$103.23
45380 Biopsy of large bowel using an endoscope	66	65	$1078.00	$153.03
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	61	61	$428.00	$183.33
45378 Diagnostic exam of large bowel using a flexible endoscope	56	56	$986.84	$169.29
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	53	53	$438.74	$183.91
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	33	31	$780.00	$109.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$225.00	$151.96
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	15	15	$329.60	$183.34
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$151.00	$97.45

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License TX E4638

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

129978601 (TX)

Commercial Insurance / Payer ID Railroad Medicare

110012672 (TX)

Commercial Insurance / Payer ID Firstcare

122579100 (TX)

Hospital & Practice Group Affiliations

Gastroenterology Assoc, Llp

1249 Ambler Ave, Abilene, TX 796012311

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. William Haynes , MD

Specialist

NPI 1154391209

Doctor of Medicine (M.D.)

Dee Fanning , NP

Nurse Practitioner - Family

NPI 1205435112

Nurse Practitioner

Whitney Hubbard , FNP

Nurse Practitioner - Family

NPI 1356071633

Family Nurse Practitioner

Dr. Steven Johnson , MD

Specialist

NPI 1588634646

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 March 24, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location March 24, 2015

Registered at 1249 AMBLER AVE, SUITE 200, ABILENE, TX 796012351 (Tel: 3256772626)

📍

Updated Business Mailing Address March 24, 2015

Registered at 1249 AMBLER AVE, SUITE 200, ABILENE, TX 796012351 (Tel: 3256772626)

👤

Provider Name / Credentials Updated March 24, 2015

Recorded as GARY ROARK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 24, 2015

Specialist (License #E4638 in TX)

🟢

Initial NPI Registration & Enumeration January 19, 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: 1003896531

Entity Type:

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

Enumeration Date: January 19, 2006

Last Update: March 24, 2015

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1249 Ambler Ave, Suite 200

Abilene, TX 796012351

Phone: 3256772626

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.