Active NPI 1225020134 Individual Practitioner Male Practitioner

Eddy A. Castillo

Specialist • Fairfield, CT

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Eddy Castillo is a certified Specialist practicing in Fairfield, CT. With approximately 35 years of clinical experience since completing medical education in 1991, Eddy Castillo delivers high-quality medical care to the local community at 425 POST RD.

Eddy Castillo is affiliated with Connecticut Gi Pllc and accepts Medicare assignment.

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, biopsy of large bowel 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

425 Post Rd

Fairfield, CT 068246232

Telephone 2032929000

Fax 2032921700

Associated Practice Facility / Clinic

🏢 Gastroenterology Associates Of Fairfield Pc Facility NPI 1982793709

Medicare Profile & Education

Medical School

Other

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Fairfield, CT

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +0.1 yrs vs City Avg

City Avg: 34.9 Yrs

State Avg: 35.5 Yrs

Regional Practice Density

16 Specialists

Practicing in Fairfield, CT (452 Statewide)

Telehealth Adoption Rate

12.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Castillo (35 Years) 35 Yrs

Fairfield Specialty Average (34.9 Years) 34.9 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	232	144	$253.00	$133.10
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	91	82	$819.50	$115.64
45380 Biopsy of large bowel using an endoscope	44	42	$1177.00	$128.64
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	40	40	$1448.70	$260.61
J7050 Infusion, normal saline solution, 250 cc	37	18	$44.00	$0.65
99213 Established patient office or other outpatient visit, typically 15 minutes	32	29	$187.00	$95.50
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	26	16	$440.00	$67.36
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$247.50	$117.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$346.50	$175.78
82272 Stool analysis for blood	17	16	$11.00	$4.15

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	174	131	$253.00	$136.59
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	90	85	$819.50	$114.69
99213 Established patient office or other outpatient visit, typically 15 minutes	75	58	$187.00	$96.73
45380 Biopsy of large bowel using an endoscope	46	46	$1177.00	$168.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$247.50	$117.89
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$1448.70	$266.22
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	14	$154.00	$83.30
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$346.50	$177.73
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$1039.50	$194.15
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$308.00	$137.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	183	122	$162.60	$98.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	90	77	$240.73	$139.06
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	85	81	$1211.79	$121.71
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	51	42	$127.24	$75.54
45380 Biopsy of large bowel using an endoscope	33	33	$1356.45	$172.66
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	29	29	$239.79	$143.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$213.02	$121.80
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$318.25	$180.96
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	22	22	$1544.57	$272.15
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	19	18	$889.74	$282.99
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$1373.91	$176.33
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	11	11	$962.50	$246.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	207	144	$140.00	$99.53
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	115	110	$1500.00	$120.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	102	82	$230.00	$141.64
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	85	66	$115.00	$76.56
45380 Biopsy of large bowel using an endoscope	50	50	$1600.00	$165.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$185.00	$122.69
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	40	$222.00	$144.89
J7050 Infusion, normal saline solution, 250 cc	28	12	$26.00	$0.69
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	28	28	$1750.00	$274.80
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	26	23	$797.00	$283.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$290.00	$182.91
43259 Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope	14	14	$573.00	$235.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	258	169	$140.00	$82.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	96	72	$230.00	$119.11
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	89	81	$1500.00	$139.35
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	52	$115.00	$78.34
45380 Biopsy of large bowel using an endoscope	54	54	$1600.00	$165.79
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$185.00	$118.09
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$1750.00	$277.50
99221 Initial hospital inpatient care per day, typically 30 minutes	26	26	$135.00	$110.37
J7050 Infusion, normal saline solution, 250 cc	25	13	$26.00	$0.64
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	18	18	$797.00	$292.64
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	18	11	$154.00	$112.63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$222.00	$149.19
45378 Diagnostic exam of large bowel using a flexible endoscope	13	12	$1565.00	$190.87
43259 Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope	12	11	$573.00	$216.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	208	152	$137.62	$80.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	205	145	$223.15	$117.53
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	117	103	$1450.85	$142.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	96	74	$114.56	$77.63
45380 Biopsy of large bowel using an endoscope	58	57	$1582.41	$146.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$184.05	$117.64
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	42	42	$1740.48	$285.02
J7050 Infusion, normal saline solution, 250 cc	39	18	$26.00	$0.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	33	$222.00	$146.30
99221 Initial hospital inpatient care per day, typically 30 minutes	24	24	$135.00	$108.63
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	23	22	$797.00	$293.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$288.20	$177.70
43259 Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope	17	17	$573.00	$220.79
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$1565.00	$194.25
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	12	11	$154.00	$110.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	244	173	$97.00	$78.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	220	157	$152.35	$115.56
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	156	139	$861.00	$149.69
45380 Biopsy of large bowel using an endoscope	87	87	$1260.00	$164.63
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	55	55	$1313.00	$283.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	54	44	$108.00	$77.18
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$254.00	$176.66
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$175.00	$116.54
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	31	28	$797.00	$292.33
J7050 Infusion, normal saline solution, 250 cc	28	13	$26.00	$0.59
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	27	$751.00	$119.27
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	23	21	$50.00	$6.08
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	18	$222.00	$145.09
91065 Measurement of hydrogen in breath to test for stomach and bowel symptoms	17	17	$185.00	$80.21
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	15	12	$154.00	$110.46
91200 Measurement of liver stiffness	15	15	$150.00	$44.18
43259 Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope	15	14	$573.00	$251.46
45378 Diagnostic exam of large bowel using a flexible endoscope	13	13	$1050.00	$190.52
43450 Dilation of esophagus	12	12	$226.00	$44.31
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$1050.00	$188.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	344	237	$97.00	$78.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	208	145	$152.00	$115.19
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	125	115	$861.00	$140.90
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	65	65	$175.00	$116.55
45380 Biopsy of large bowel using an endoscope	60	60	$1260.00	$185.63
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	60	56	$50.00	$6.07
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	47	46	$1313.00	$278.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	35	27	$108.00	$76.26
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	29	27	$751.00	$127.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$254.00	$175.86
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	21	21	$797.00	$291.86
45378 Diagnostic exam of large bowel using a flexible endoscope	20	20	$1050.00	$195.66
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	18	$222.00	$144.93
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	18	18	$1050.00	$192.86
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	16	12	$154.00	$110.36
43259 Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope	15	15	$573.00	$251.20

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License CT 039515

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.

Hospital & Practice Group Affiliations

Connecticut Gi Pllc

85 Seymour St, Hartford, CT 061065529

Phone: 8602462571

Practice Associates & Co-Workers

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

11 Associated Practitioners

Daniel Stewart , PA

Physician Assistant - Medical

NPI 1013018969

Physician Assistant

Brian Clancy

Physician Assistant

NPI 1083151898

Adrian Ortega , PA-C

Physician Assistant - Medical

NPI 1124774120

Physician Assistant (Certified)

Dr. Emil Blanco , MD

Specialist

NPI 1134111040

Doctor of Medicine (M.D.)

Dr. Gena Cobrin , MD

Specialist

NPI 1205828126

Doctor of Medicine (M.D.)

Dr. Julie Spivack , MD

Specialist

NPI 1316939226

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 October 30, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location October 30, 2007

Registered at 425 POST RD, FAIRFIELD, CT 068246232 (Tel: 2032929000)

📍

Updated Business Mailing Address October 30, 2007

Registered at 425 POST RD, FAIRFIELD, CT 068246232 (Tel: 2032929000)

👤

Provider Name / Credentials Updated October 30, 2007

Recorded as EDDY CASTILLO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 30, 2007

Specialist (License #039515 in CT)

🟢

Initial NPI Registration & Enumeration August 17, 2005

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: 1225020134

Entity Type:

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

Enumeration Date: August 17, 2005

Last Update: October 30, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

425 Post Rd

Fairfield, CT 068246232

Phone: 2032929000

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.