Active NPI 1619973120 Individual Practitioner Male Practitioner

Dr. Gregory D. Andreassian , MD, PA

Surgery • Fredericksburg, TX

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Andreassian, MD, PA is a registered healthcare professional specializing in Surgery in Fredericksburg, TX. Practice services are available at 205 W WINDCREST ST STE 130 under active NPI credentials.

Frequently performed procedures and clinical services include biopsy of large bowel using an endoscope, established patient outpatient office visit, new 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

205 W Windcrest St Ste 130

Fredericksburg, TX 786244478

Telephone 8309976773

Fax 8309971961

Associated Practice Facility / Clinic

🏢 Hill Country Physicians Associates Facility NPI 1871752295

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Fredericksburg, TX

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 17.0 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

5 Specialists

Practicing in Fredericksburg, TX (2342 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

69.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
45380 Biopsy of large bowel using an endoscope	80	80	$654.00	$145.41
99213 Established patient office or other outpatient visit, typically 15 minutes	79	58	$188.48	$88.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$280.03	$109.03
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	31	31	$561.58	$172.07
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	31	31	$789.87	$244.60
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	30	30	$433.90	$81.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	17	$276.30	$124.65
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	16	16	$561.56	$178.07
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$562.50	$162.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$445.27	$162.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	109	109	$612.00	$140.15
99213 Established patient office or other outpatient visit, typically 15 minutes	102	60	$218.00	$88.68
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	64	64	$317.00	$109.15
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	57	57	$777.00	$247.13
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	45	45	$563.00	$176.48
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	40	40	$422.00	$94.26
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	16	16	$564.00	$178.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	13	$319.00	$125.75
45378 Diagnostic exam of large bowel using a flexible endoscope	13	13	$564.00	$171.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$483.00	$163.25
49505 Repair of groin hernia (5 years or older)	11	11	$1553.00	$527.68
47562 Removal of gallbladder using an endoscope	11	11	$1967.00	$606.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	125	74	$218.00	$89.98
45380 Biopsy of large bowel using an endoscope	121	121	$612.00	$160.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	93	93	$317.00	$108.62
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	44	44	$563.00	$180.29
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	35	33	$422.00	$82.88
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$777.00	$249.59
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	20	20	$564.00	$182.59
49505 Repair of groin hernia (5 years or older)	14	14	$1553.00	$488.67
45378 Diagnostic exam of large bowel using a flexible endoscope	13	13	$564.00	$181.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	115	80	$218.00	$73.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	97	97	$317.00	$106.01
45380 Biopsy of large bowel using an endoscope	96	96	$612.00	$165.68
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	41	41	$563.00	$177.13
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$777.00	$257.71
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	28	28	$480.00	$160.11
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	26	$422.00	$101.18
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	27	27	$564.00	$186.97
45378 Diagnostic exam of large bowel using a flexible endoscope	18	18	$549.22	$182.22
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	15	15	$1302.00	$245.89
38900 Lymph node imaging during surgery	14	14	$414.00	$137.83
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$319.00	$107.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$483.00	$161.10
49505 Repair of groin hernia (5 years or older)	13	12	$1553.00	$521.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	113	113	$838.20	$154.96
99213 Established patient office or other outpatient visit, typically 15 minutes	110	77	$219.86	$72.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	93	93	$321.89	$105.05
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	56	56	$692.48	$184.52
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	52	51	$655.66	$80.89
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	51	51	$981.54	$257.56
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	43	43	$697.67	$186.46
45378 Diagnostic exam of large bowel using a flexible endoscope	39	39	$789.28	$179.66
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	21	21	$1442.10	$147.44
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	19	$608.96	$198.78
47562 Removal of gallbladder using an endoscope	19	19	$2004.60	$634.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$320.18	$105.67
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	17	17	$1323.53	$279.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$485.67	$160.07
19301 Partial removal of breast	14	13	$1967.75	$446.84
49585 Repair of hernia at navel (5 years or older)	12	12	$1346.95	$274.65
38790 Injection procedure for x-ray imaging of the lymphatic system	12	12	$251.73	$41.06
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	11	11	$490.68	$112.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	176	114	$258.84	$68.22
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	112	112	$391.43	$100.84
45380 Biopsy of large bowel using an endoscope	103	103	$1550.78	$158.05
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	86	84	$1171.46	$91.25
45378 Diagnostic exam of large bowel using a flexible endoscope	62	62	$1394.13	$178.94
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	55	55	$1189.43	$174.10
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	37	37	$1856.95	$247.99
47562 Removal of gallbladder using an endoscope	30	30	$2452.11	$592.88
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	26	26	$1133.56	$175.80
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	22	22	$738.62	$192.02
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	21	21	$757.14	$194.28
49505 Repair of groin hernia (5 years or older)	19	19	$1874.17	$570.17
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$597.82	$154.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$396.94	$100.92
49585 Repair of hernia at navel (5 years or older)	13	13	$1628.97	$324.35
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	12	11	$1567.67	$292.53
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	11	11	$949.97	$108.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	140	94	$276.00	$64.26
45380 Biopsy of large bowel using an endoscope	120	120	$1828.00	$140.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	116	116	$410.00	$95.33
45378 Diagnostic exam of large bowel using a flexible endoscope	91	91	$1534.00	$169.32
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	64	62	$1339.00	$91.66
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	43	42	$765.00	$180.56
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	39	39	$2060.00	$235.57
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	36	36	$1534.00	$167.82
47562 Removal of gallbladder using an endoscope	34	34	$2513.00	$580.83
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	23	23	$778.00	$182.20
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	19	19	$814.00	$133.56
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	19	17	$391.00	$93.13
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	16	$280.00	$64.45
49505 Repair of groin hernia (5 years or older)	18	18	$1990.00	$465.73
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$627.00	$142.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$406.00	$94.55
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	16	14	$1670.00	$243.98
19301 Partial removal of breast	13	12	$2482.00	$491.46

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License TX H0136

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.

Practice Associates & Co-Workers

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

1 Associated Practitioners

Abigail Simpson , PA-C

Physician Assistant

NPI 1730631276

Physician Assistant (Certified)

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active June 28, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location June 28, 2017

Registered at 205 W WINDCREST ST STE 130, FREDERICKSBURG, TX 786244478 (Tel: 8309976773)

📍

Updated Business Mailing Address June 28, 2017

Registered at 205 W WINDCREST ST, STE 130, FREDERICKSBURG, TX 786244478 (Tel: (830) 997-6773)

👤

Provider Name / Credentials Updated June 28, 2017

Recorded as GREGORY ANDREASSIAN, M.D.,P.A.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 28, 2017

Surgery (License #H0136 in TX)

✅

NPI Profile Active November 20, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location November 20, 2015

Registered at 205 W WINDCREST ST, STE 220, FREDERICKSBURG, TX 786244478 (Tel: 8309976773)

📍

Updated Business Mailing Address November 20, 2015

Registered at 205 W WINDCREST ST, STE 130, FREDERICKSBURG, TX 786244478 (Tel: 8309976773)

👤

Provider Name / Credentials Updated November 20, 2015

Recorded as GREGORY ANDREASSIAN, M.D.,P.A.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 20, 2015

Surgery (License #H0136 in TX)

🟢

Initial NPI Registration & Enumeration June 21, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1619973120

Entity Type:

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

Enumeration Date: June 21, 2005

Last Update: July 21, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

205 W Windcrest St, Ste 130

Fredericksburg, TX 786244478

Phone: 8309976773

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.