Active NPI 1073575403 Individual Practitioner Male Practitioner

Dr. Daniel J Gassert , MD

Internal Medicine - Gastroenterology • St Augustine, FL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Daniel Gassert, MD is a certified Internal Medicine - Gastroenterology practicing in St Augustine, FL. With approximately 26 years of clinical experience since graduating from New York University School Of Medicine in 2000, Dr. Gassert delivers high-quality medical care to the local community at 216 SOUTHPARK CIR E.

Dr. Gassert is affiliated with Borland Groover Clinic, Pa and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, 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. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

216 Southpark Cir E

St Augustine, FL 320865135

Telephone 9048246108

Fax 9048239613

Associated Practice Facility / Clinic

🏢 Gastroenterology Associates Of St Augustine, Pa Facility NPI 1871554634

Medicare Profile & Education

Medical School

New York University School Of Medicine

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Gastroenterology in St Augustine, FL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs +2.4 yrs vs City Avg

City Avg: 23.6 Yrs

State Avg: 28.7 Yrs

Regional Practice Density

18 Specialists

Practicing in St Augustine, FL (1556 Statewide)

Telehealth Adoption Rate

33.3% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

75.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gassert (26 Years) 26 Yrs

St Augustine Specialty Average (23.6 Years) 23.6 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	272	199	$275.00	$123.60
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	221	212	$650.00	$81.49
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	197	197	$1211.90	$245.29
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	194	94	$200.00	$77.23
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	82	81	$300.00	$128.59
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	66	66	$400.00	$163.86
45380 Biopsy of large bowel using an endoscope	51	51	$850.00	$121.71
99213 Established patient office or other outpatient visit, typically 15 minutes	47	46	$200.00	$88.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$300.00	$109.23
43450 Dilation of esophagus	45	43	$165.00	$39.13
43249 Balloon dilation of esophagus using an endoscope	33	30	$583.64	$124.78
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	28	28	$800.00	$181.09
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$776.00	$174.18
J7050 Infusion, normal saline solution, 250 cc	12	11	$122.00	$0.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	409	312	$275.00	$126.83
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	199	186	$650.00	$82.04
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	182	182	$1211.18	$256.05
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	159	97	$200.00	$79.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	149	149	$400.00	$166.04
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	82	81	$300.00	$132.04
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$300.00	$110.85
45380 Biopsy of large bowel using an endoscope	52	51	$850.00	$89.04
43249 Balloon dilation of esophagus using an endoscope	41	27	$585.12	$127.33
43450 Dilation of esophagus	27	26	$165.00	$41.96
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	25	25	$800.00	$187.10
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	22	22	$800.00	$187.59
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$200.00	$89.92
45378 Diagnostic exam of large bowel using a flexible endoscope	17	17	$794.12	$175.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	428	315	$275.00	$126.12
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	210	203	$650.00	$94.77
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	192	109	$181.90	$71.11
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	170	170	$1214.00	$257.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	136	136	$400.00	$166.59
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	59	57	$300.00	$135.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	59	59	$300.00	$112.39
45380 Biopsy of large bowel using an endoscope	43	43	$850.00	$115.99
99213 Established patient office or other outpatient visit, typically 15 minutes	43	43	$200.00	$90.33
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	38	38	$792.11	$183.63
43249 Balloon dilation of esophagus using an endoscope	28	18	$571.61	$128.07
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$400.00	$197.74
43450 Dilation of esophagus	24	24	$165.00	$39.86
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$800.00	$188.22
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	13	13	$586.54	$105.47
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$783.33	$176.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	540	355	$275.00	$130.35
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	194	186	$650.00	$88.26
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	193	84	$156.00	$71.30
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	183	183	$400.00	$169.52
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	138	138	$1214.00	$261.26
99213 Established patient office or other outpatient visit, typically 15 minutes	118	115	$200.00	$91.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	79	79	$300.00	$112.02
45380 Biopsy of large bowel using an endoscope	75	75	$850.00	$117.54
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	59	58	$300.00	$138.07
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	28	28	$800.00	$193.12
43249 Balloon dilation of esophagus using an endoscope	26	22	$597.69	$135.51
45378 Diagnostic exam of large bowel using a flexible endoscope	22	22	$790.91	$174.64
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	19	19	$400.00	$202.95
43450 Dilation of esophagus	19	19	$165.00	$40.88
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$775.00	$185.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	406	290	$205.65	$109.22
99213 Established patient office or other outpatient visit, typically 15 minutes	187	172	$127.33	$74.75
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	153	145	$650.00	$97.67
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	150	66	$138.40	$74.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	96	96	$300.00	$167.38
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	69	69	$1107.16	$261.05
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	42	40	$320.83	$207.60
45380 Biopsy of large bowel using an endoscope	39	39	$985.13	$157.16
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	29	29	$804.83	$187.66
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	17	$250.00	$147.51
43249 Balloon dilation of esophagus using an endoscope	26	18	$620.96	$148.25
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$190.43	$108.48
99202 New patient office or other outpatient visit, typically 20 minutes	21	21	$178.57	$76.92
96413 Infusion of chemotherapy into a vein up to 1 hour	20	11	$365.00	$137.74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$265.00	$141.98
45378 Diagnostic exam of large bowel using a flexible endoscope	17	17	$814.12	$197.12
82274 Stool analysis for blood, by fecal hemoglobin determination by immunoassay	11	11	$33.64	$15.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1745 Injection, infliximab, excludes biosimilar, 10 mg	1,210	12	$150.00	$70.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	450	338	$154.91	$108.49
99213 Established patient office or other outpatient visit, typically 15 minutes	323	279	$110.00	$73.86
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	262	251	$650.00	$93.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	197	197	$236.14	$163.94
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	137	136	$1020.00	$270.23
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	129	72	$126.00	$73.99
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	88	88	$180.00	$108.12
45380 Biopsy of large bowel using an endoscope	70	70	$1020.00	$138.97
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	61	57	$305.00	$205.75
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	48	48	$820.00	$193.71
43249 Balloon dilation of esophagus using an endoscope	45	41	$650.00	$138.11
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	39	24	$214.87	$146.14
96413 Infusion of chemotherapy into a vein up to 1 hour	29	17	$350.00	$137.47
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	22	22	$820.00	$188.31
82274 Stool analysis for blood, by fecal hemoglobin determination by immunoassay	21	21	$30.00	$17.32
96415 Administration of chemotherapy into vein, each additional hour	20	12	$300.00	$30.04
45378 Diagnostic exam of large bowel using a flexible endoscope	19	19	$820.00	$189.65
G0328 Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous	16	16	$30.00	$17.69
43450 Dilation of esophagus	14	14	$360.00	$40.11
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	12	$80.00	$44.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	505	348	$150.00	$106.33
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	232	223	$650.00	$95.77
99213 Established patient office or other outpatient visit, typically 15 minutes	171	154	$110.00	$72.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	160	80	$126.00	$73.27
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	158	158	$220.00	$163.80
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	108	108	$1078.07	$267.12
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	70	65	$305.00	$204.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	70	70	$180.00	$107.72
45380 Biopsy of large bowel using an endoscope	48	48	$1072.50	$138.88
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	46	46	$902.17	$186.02
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	43	30	$206.51	$141.63
43249 Balloon dilation of esophagus using an endoscope	39	34	$655.77	$137.03
45378 Diagnostic exam of large bowel using a flexible endoscope	29	28	$818.34	$175.57
82274 Stool analysis for blood, by fecal hemoglobin determination by immunoassay	23	22	$30.00	$19.25
43450 Dilation of esophagus	15	14	$321.33	$41.60
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$977.50	$186.84
91110 Imaging of digestive tract done from the inside of the digestive tract	12	12	$2500.00	$826.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	512	320	$150.00	$105.74
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	187	86	$126.00	$72.25
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	185	174	$650.00	$89.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	138	138	$220.43	$162.28
99213 Established patient office or other outpatient visit, typically 15 minutes	110	104	$110.00	$71.95
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	101	100	$1216.00	$262.10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	92	86	$305.27	$203.34
45380 Biopsy of large bowel using an endoscope	69	69	$1200.00	$124.86
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	49	23	$195.00	$143.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$180.82	$107.53
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	41	41	$1198.00	$193.31
45378 Diagnostic exam of large bowel using a flexible endoscope	38	38	$812.00	$184.94
43249 Balloon dilation of esophagus using an endoscope	25	22	$675.00	$139.75
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	19	19	$1198.00	$194.26
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	13	11	$884.00	$211.25
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	12	11	$320.00	$159.85

Medical Specialties & State Licenses

Internal Medicine - Gastroenterology Primary Specialty

NUCC Taxonomy Code: 207RG0100X

State License FL ME0095376

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Florida License Number

ME0095376 (FL)

Hospital & Practice Group Affiliations

Borland Groover Clinic, Pa

40 Groover Loop, St Augustine, FL 320866564

Phone: 9048246108

Borland Groover Clinic, Pa

4800 Belfort Rd, Jacksonville, FL 322566004

Phone: 9043987205

Borland Groover Clinic, Pa

836 Prudential Dr, Jacksonville, FL 322078335

Phone: 9042880433

Practice Associates & Co-Workers

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

9 Associated Practitioners

Dr. Jesus Salas Noain , MD

Internal Medicine - Gastroenterology

NPI 1003360645

Doctor of Medicine (M.D.)

Laurie Dewitt , CRNA

Nurse Anesthetist, Certified Registered

NPI 1306807060

Certified Registered Nurse Anesthetist

Dr. Santiago Rosado , MD

Internal Medicine - Gastroenterology

NPI 1386618635

Doctor of Medicine (M.D.)

Terry Schreiber , CRNA

Nurse Anesthetist, Certified Registered

NPI 1407817059

Certified Registered Nurse Anesthetist

Lisa Nesbitt , CRNA

Nurse Anesthetist, Certified Registered

NPI 1518146018

Certified Registered Nurse Anesthetist

Dr. Timothy Cavacini , DO

Internal Medicine - Gastroenterology

NPI 1730140583

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 216 SOUTHPARK CIR E, ST AUGUSTINE, FL 320865135 (Tel: 9048246108)

📍

Updated Business Mailing Address July 08, 2007

Registered at 216 SOUTHPARK CIR E, ST AUGUSTINE, FL 320865135 (Tel: 9048246108)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as DANIEL GASSERT, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #ME0095376 in FL)

🟢

Initial NPI Registration & Enumeration April 03, 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. Daniel Gassert. 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: 1073575403

Entity Type:

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

Enumeration Date: April 03, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

216 Southpark Cir E

St Augustine, FL 320865135

Phone: 9048246108

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.