Active NPI 1306992003 Individual Practitioner Male Practitioner

Dr. Brett Dennis Gerwin , MD

Ophthalmology • Chattanooga, TN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Brett Gerwin, MD is a certified Ophthalmology practicing in Chattanooga, TN. With approximately 19 years of clinical experience since graduating from University Of Alabama School Of Medicine in 2007, Dr. Gerwin delivers high-quality medical care to the local community at 979 E 3RD ST.

Dr. Gerwin accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, faricimab-svoa, 0.1 mg, imaging of retina, injection of drug into eye. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

979 E 3rd St
Suite 230

Chattanooga, TN 374032136

Telephone 4235212820

Fax 4236025594

Associated Practice Facility / Clinic

🏢 Plaza Surgery, G.p. Facility NPI 1497750400

Medicare Profile & Education

Medical School

University Of Alabama School Of Medicine

Graduation Year

2007

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Chattanooga, TN

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

19 Yrs -9.1 yrs vs City Avg

City Avg: 28.1 Yrs

State Avg: 27.5 Yrs

Regional Practice Density

32 Specialists

Practicing in Chattanooga, TN (395 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

78.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gerwin (19 Years) 19 Yrs

Chattanooga Specialty Average (28.1 Years) 28.1 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
J2777 Injection, faricimab-svoa, 0.1 mg	4,860	19	$46.30	$31.83
92134 Imaging of retina	1,462	476	$248.00	$38.79
67028 Injection of drug into eye	1,135	220	$1235.92	$116.63
J9035 Injection, bevacizumab, 10 mg	757	147	$125.00	$71.53
J2778 Injection, ranibizumab, 0.1 mg	645	20	$1500.00	$156.32
J0178 Injection, aflibercept, 1 mg	484	38	$2621.90	$801.84
92014 Established patient complete exam of visual system	309	250	$300.00	$120.60
92004 New patient complete exam of visual system	132	132	$350.00	$143.77
92250 Photography of the retina	108	98	$185.00	$34.83
92012 Established patient problem focused exam of visual system	63	45	$200.00	$85.57
99213 Established patient office or other outpatient visit, typically 15 minutes	29	25	$175.00	$88.07
76512 Ultrasound of eye disease, growth, or structure	20	17	$445.00	$46.49
67145 Photocoagulation treatment to prevent detachment of retina	13	12	$1570.00	$232.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,466	468	$248.00	$37.74
67028 Injection of drug into eye	1,144	195	$1232.74	$113.27
J2778 Injection, ranibizumab, 0.1 mg	880	28	$1500.00	$227.50
J9035 Injection, bevacizumab, 10 mg	759	134	$125.00	$70.56
J0178 Injection, aflibercept, 1 mg	545	39	$2486.97	$801.34
92014 Established patient complete exam of visual system	293	240	$300.00	$117.96
92250 Photography of the retina	105	94	$185.00	$33.41
92004 New patient complete exam of visual system	96	96	$350.00	$139.53
92012 Established patient problem focused exam of visual system	80	53	$200.00	$83.85
99213 Established patient office or other outpatient visit, typically 15 minutes	45	43	$175.00	$84.77
76512 Ultrasound of eye disease, growth, or structure	27	24	$445.00	$45.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,480	468	$248.00	$38.09
67028 Injection of drug into eye	1,136	216	$1278.16	$115.77
J2778 Injection, ranibizumab, 0.1 mg	885	32	$1352.54	$246.92
J9035 Injection, bevacizumab, 10 mg	795	146	$125.16	$67.78
J0178 Injection, aflibercept, 1 mg	649	46	$2288.14	$764.89
92014 Established patient complete exam of visual system	300	250	$300.00	$118.85
92250 Photography of the retina	116	105	$185.00	$34.07
92012 Established patient problem focused exam of visual system	105	76	$200.00	$83.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$400.00	$158.50
92004 New patient complete exam of visual system	31	31	$350.00	$141.40
76512 Ultrasound of eye disease, growth, or structure	23	18	$445.00	$45.50
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$255.00	$105.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,548	479	$248.00	$38.55
67028 Injection of drug into eye	1,136	214	$1253.58	$116.09
J2778 Injection, ranibizumab, 0.1 mg	925	31	$1339.46	$279.46
J9035 Injection, bevacizumab, 10 mg	785	146	$125.80	$71.36
J0178 Injection, aflibercept, 1 mg	625	46	$2513.66	$855.44
92014 Established patient complete exam of visual system	389	305	$300.00	$119.52
92250 Photography of the retina	192	169	$185.00	$35.56
92012 Established patient problem focused exam of visual system	159	115	$200.00	$84.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	125	125	$400.00	$158.38
76512 Ultrasound of eye disease, growth, or structure	50	35	$445.00	$43.84
67145 Photocoagulation treatment to prevent detachment of retina	20	17	$1570.00	$500.53
92235 Exam of retinal blood vessels using a special camera after injection of a dye	19	19	$800.00	$110.35
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$255.00	$106.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,456	445	$248.00	$38.72
67028 Injection of drug into eye	1,141	224	$1255.68	$104.19
J2778 Injection, ranibizumab, 0.1 mg	920	31	$1267.94	$280.13
J9035 Injection, bevacizumab, 10 mg	793	162	$126.10	$77.54
J0178 Injection, aflibercept, 1 mg	610	49	$2496.39	$860.68
92014 Established patient complete exam of visual system	314	246	$300.00	$120.47
92250 Photography of the retina	160	148	$185.00	$41.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	108	108	$400.00	$156.28
92012 Established patient problem focused exam of visual system	93	59	$200.00	$83.74
76512 Ultrasound of eye disease, growth, or structure	45	32	$445.00	$47.83
92235 Exam of retinal blood vessels using a special camera after injection of a dye	11	11	$800.00	$98.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,528	440	$248.00	$38.70
67028 Injection of drug into eye	1,234	231	$1262.50	$105.69
J9035 Injection, bevacizumab, 10 mg	917	182	$125.14	$79.64
J2778 Injection, ranibizumab, 0.1 mg	853	27	$1403.28	$330.49
J0178 Injection, aflibercept, 1 mg	662	51	$2528.70	$882.87
92014 Established patient complete exam of visual system	407	314	$300.00	$119.22
92250 Photography of the retina	311	284	$185.00	$46.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	155	155	$400.00	$151.60
92012 Established patient problem focused exam of visual system	108	64	$200.00	$83.11
76512 Ultrasound of eye disease, growth, or structure	39	32	$445.00	$53.31
92235 Exam of retinal blood vessels using a special camera after injection of a dye	17	17	$800.00	$86.41
67145 Photocoagulation treatment to prevent detachment of retina	17	16	$1570.00	$503.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,508	476	$248.00	$38.70
67028 Injection of drug into eye	1,144	225	$1274.83	$105.16
J9035 Injection, bevacizumab, 10 mg	962	188	$125.00	$76.67
J2778 Injection, ranibizumab, 0.1 mg	669	21	$1428.25	$352.02
J0178 Injection, aflibercept, 1 mg	478	40	$2394.98	$845.50
92014 Established patient complete exam of visual system	421	317	$300.00	$117.07
92250 Photography of the retina	322	286	$185.00	$51.74
92012 Established patient problem focused exam of visual system	180	128	$200.00	$81.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	167	167	$400.00	$153.13
76512 Ultrasound of eye disease, growth, or structure	51	43	$445.00	$65.47
92235 Exam of retinal blood vessels using a special camera after injection of a dye	18	18	$800.00	$80.25
67228 Laser destruction of leaking retinal blood vessels, 1 or more sessions	17	13	$3010.00	$312.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$255.00	$100.39
67108 Repair of detached retina and drainage of eye fluid between lens and retina	11	11	$5890.00	$1133.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,522	482	$248.00	$36.75
67028 Injection of drug into eye	1,080	200	$1263.05	$99.40
J9035 Injection, bevacizumab, 10 mg	847	157	$125.15	$73.43
J2778 Injection, ranibizumab, 0.1 mg	559	18	$1338.46	$357.11
J0178 Injection, aflibercept, 1 mg	530	41	$2562.45	$913.55
92014 Established patient complete exam of visual system	405	292	$300.00	$111.26
92250 Photography of the retina	273	240	$185.00	$57.54
92012 Established patient problem focused exam of visual system	242	160	$200.00	$76.79
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	190	190	$400.00	$147.40
76512 Ultrasound of eye disease, growth, or structure	56	43	$445.00	$78.63
92235 Exam of retinal blood vessels using a special camera after injection of a dye	20	20	$840.00	$78.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$255.00	$96.60
67228 Laser destruction of leaking retinal blood vessels, 1 or more sessions	16	13	$3010.00	$289.34
67145 Photocoagulation treatment to prevent detachment of retina	12	12	$1570.00	$473.63
67108 Repair of detached retina and drainage of eye fluid between lens and retina	12	12	$5890.00	$1046.56

Medical Specialties & State Licenses

CMS Verified: 2021-11-11

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License TN 45994

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Ophthalmology - Retina Specialist

NUCC Taxonomy Code: 207WX0107X

State License TN 45994

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

State License AL 26155

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

1517997 (TN)

Practice Associates & Co-Workers

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

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Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

13 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 11, 2021

Ophthalmology (License #45994 in TN)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 30, 2020

Ophthalmology (License #26155 in AL)

✅

NPI Profile Active July 12, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location July 12, 2017

Registered at 979 E 3RD ST, SUITE 230, CHATTANOOGA, TN 374032136 (Tel: 4235212820)

📍

Updated Business Mailing Address July 12, 2017

Registered at 979 E 3RD ST, SUITE 230, CHATTANOOGA, TN 374032136 (Tel: 4235212820)

👤

Provider Name / Credentials Updated July 12, 2017

Recorded as BRETT GERWIN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 12, 2017

Ophthalmology (License #26155 in AL)

✅

NPI Profile Active December 06, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location December 06, 2016

Registered at 979 E 3RD ST, SUITE 230, CHATTANOOGA, TN 374032136 (Tel: 4235212820)

📍

Updated Business Mailing Address December 06, 2016

Registered at 979 E 3RD ST, SUITE 230, CHATTANOOGA, TN 374032136 (Tel: 4235212820)

👤

Provider Name / Credentials Updated December 06, 2016

Recorded as BRETT GERWIN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 06, 2016

Ophthalmology (License #45994 in TN)

🟢

Initial NPI Registration & Enumeration January 26, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1306992003

Entity Type:

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

Enumeration Date: January 26, 2007

Last Update: November 11, 2021

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

979 E 3rd St, Suite 230

Chattanooga, TN 374032136

Phone: 4235212820

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.