Active NPI 1629158092 Individual Practitioner Male Practitioner

Dr. Thomas K Unger , OD

Optometrist • Troy, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Unger, OD is a certified Optometrist practicing in Troy, IL. With approximately 38 years of clinical experience since graduating from University Of Missouri St Louis - School Of Optometry in 1988, Dr. Unger delivers high-quality medical care to the local community at 534 EDWARDSVILLE RD.

Dr. Unger is affiliated with Unger Eye Care Pc and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

534 Edwardsville Rd

Troy, IL 622941338

Telephone 6186672020

Fax 6186670205

Associated Practice Facility / Clinic

🏢 Unger Eye Care Pc Facility NPI 1144379850

Medicare Profile & Education

Medical School

University Of Missouri St Louis - School Of Optometry

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Troy, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +1.5 yrs vs City Avg

City Avg: 36.5 Yrs

State Avg: 22.8 Yrs

Regional Practice Density

2 Specialists

Practicing in Troy, IL (2783 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

49.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Unger (38 Years) 38 Yrs

Troy Specialty Average (36.5 Years) 36.5 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	228	147	$159.00	$124.81
92250 Photography of the retina	182	129	$100.00	$33.19
83861 Microfluid analysis of tears	166	56	$30.00	$22.03
92083 Exam of visual field with extended testing	146	80	$95.21	$52.91
92082 Exam of visual field with intermediate testing	94	81	$80.00	$43.05
92134 Imaging of retina	93	60	$90.00	$35.35
92284 Evaluation of eye adaptation to light and dark with interpretation and report	81	56	$90.00	$29.58
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	70	44	$189.00	$114.54
92283 Extended color vision examination	62	52	$70.00	$45.33
92133 Imaging of optic nerve	59	39	$90.00	$31.56
99213 Established patient office or other outpatient visit, typically 15 minutes	56	52	$109.29	$88.20
92285 Photography of content of eyes	44	32	$50.00	$20.73
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	33	32	$225.00	$70.19
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$209.00	$164.87
76513 Ultrasound scan of eye using water bath method	18	18	$200.00	$79.11
95930 Measurement of nerve conduction using visual stimulation testing with report	17	14	$195.00	$58.74
92020 Examination of cornea and iris using lens device and slit lamp	13	13	$56.00	$25.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	2,427	17	$2.31	$1.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	244	153	$159.00	$124.85
92250 Photography of the retina	221	152	$100.00	$34.16
83861 Microfluid analysis of tears	204	61	$30.00	$21.83
92083 Exam of visual field with extended testing	196	107	$95.00	$53.15
92134 Imaging of retina	137	79	$90.00	$36.21
92284 Evaluation of eye adaptation to light and dark with interpretation and report	120	78	$90.00	$39.31
99213 Established patient office or other outpatient visit, typically 15 minutes	104	77	$109.00	$88.96
92082 Exam of visual field with intermediate testing	99	85	$80.00	$43.97
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	80	55	$189.00	$115.85
92133 Imaging of optic nerve	75	50	$90.00	$32.04
92283 Extended color vision examination	53	46	$70.00	$44.35
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	47	41	$225.00	$71.33
92020 Examination of cornea and iris using lens device and slit lamp	25	25	$56.00	$24.66
95930 Measurement of nerve conduction using visual stimulation testing with report	23	17	$195.00	$60.62
76513 Ultrasound scan of eye using water bath method	20	19	$200.00	$130.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$209.00	$166.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	1,979	14	$2.22	$1.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	259	174	$159.00	$126.92
92250 Photography of the retina	220	157	$100.00	$34.77
83861 Microfluid analysis of tears	216	63	$30.00	$22.00
92083 Exam of visual field with extended testing	171	99	$95.00	$55.18
99213 Established patient office or other outpatient visit, typically 15 minutes	134	84	$109.00	$90.47
92134 Imaging of retina	130	84	$90.00	$37.19
92284 Evaluation of eye adaptation to light and dark with interpretation and report	120	86	$90.00	$52.05
92082 Exam of visual field with intermediate testing	100	88	$80.00	$44.90
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	67	49	$189.00	$120.57
92133 Imaging of optic nerve	62	44	$90.00	$33.64
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	45	40	$225.00	$72.23
92283 Extended color vision examination	44	39	$70.00	$46.17
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$209.00	$169.41
76513 Ultrasound scan of eye using water bath method	21	21	$200.00	$95.04
92020 Examination of cornea and iris using lens device and slit lamp	17	16	$56.00	$27.36
95930 Measurement of nerve conduction using visual stimulation testing with report	16	12	$195.00	$63.83

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	217	155	$144.26	$126.37
92250 Photography of the retina	192	145	$100.00	$36.80
83861 Microfluid analysis of tears	154	49	$30.00	$22.48
99213 Established patient office or other outpatient visit, typically 15 minutes	131	79	$100.34	$90.72
92083 Exam of visual field with extended testing	127	83	$95.00	$56.19
92082 Exam of visual field with intermediate testing	101	87	$80.00	$45.45
92134 Imaging of retina	99	71	$90.00	$38.67
92284 Evaluation of eye adaptation to light and dark with interpretation and report	96	77	$90.00	$54.83
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	60	44	$189.00	$126.07
92133 Imaging of optic nerve	51	40	$90.00	$33.74
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	37	35	$225.00	$75.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	27	27	$191.07	$163.76
92020 Examination of cornea and iris using lens device and slit lamp	26	26	$56.00	$27.62
92283 Extended color vision examination	25	24	$70.00	$44.08
76513 Ultrasound scan of eye using water bath method	24	24	$200.00	$71.37
95930 Measurement of nerve conduction using visual stimulation testing with report	13	11	$195.00	$61.97
76514 Ultrasound scan of cornea to determine thickness	11	11	$58.00	$11.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	1,621	13	$2.34	$1.30
92250 Photography of the retina	142	109	$100.00	$40.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	132	108	$120.00	$108.60
99213 Established patient office or other outpatient visit, typically 15 minutes	89	65	$90.17	$72.71
92083 Exam of visual field with extended testing	89	55	$95.00	$57.29
92284 Evaluation of eye adaptation to light and dark with interpretation and report	83	60	$90.00	$56.27
83861 Microfluid analysis of tears	78	26	$30.00	$22.30
92082 Exam of visual field with intermediate testing	68	54	$80.00	$45.81
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	62	46	$35.00	$22.69
92134 Imaging of retina	54	39	$90.00	$37.86
92133 Imaging of optic nerve	43	33	$90.00	$34.23
76513 Ultrasound scan of eye using water bath method	28	13	$100.00	$90.25
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	22	18	$225.00	$72.40
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	20	17	$178.65	$121.55
92283 Extended color vision examination	13	11	$70.00	$43.58
92020 Examination of cornea and iris using lens device and slit lamp	11	11	$56.00	$27.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	170	103	$90.00	$74.61
92250 Photography of the retina	168	122	$100.00	$49.09
83861 Microfluid analysis of tears	162	48	$30.00	$22.03
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	155	116	$120.00	$109.33
92082 Exam of visual field with intermediate testing	115	90	$80.00	$42.23
92083 Exam of visual field with extended testing	69	52	$95.00	$58.86
92133 Imaging of optic nerve	57	40	$90.00	$34.64
76513 Ultrasound scan of eye using water bath method	56	28	$100.00	$89.57
92134 Imaging of retina	46	36	$90.00	$38.70
92284 Evaluation of eye adaptation to light and dark with interpretation and report	34	30	$90.00	$57.70
0509T Pattern recording of retinal electrical responses to external stimuli with interpretation and report	32	24	$225.00	$73.74
92020 Examination of cornea and iris using lens device and slit lamp	31	31	$56.00	$27.35
92100 Multiple measurements of eye fluid pressure over an extended time period	16	16	$100.00	$79.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$115.00	$110.09
92014 Established patient complete exam of visual system	11	11	$99.00	$98.63

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	178	136	$120.00	$107.39
92250 Photography of the retina	154	119	$100.00	$55.02
83861 Microfluid analysis of tears	136	39	$30.00	$22.03
99213 Established patient office or other outpatient visit, typically 15 minutes	134	71	$90.04	$72.68
92082 Exam of visual field with intermediate testing	111	91	$80.00	$42.46
92083 Exam of visual field with extended testing	63	42	$95.00	$59.98
92133 Imaging of optic nerve	46	33	$90.00	$35.52
76513 Ultrasound scan of eye using water bath method	42	21	$100.00	$86.41
92134 Imaging of retina	37	30	$90.00	$39.10
92020 Examination of cornea and iris using lens device and slit lamp	24	23	$56.00	$26.38
92100 Multiple measurements of eye fluid pressure over an extended time period	20	18	$100.00	$78.25
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	17	11	$35.00	$20.93
92275 Recording of retinal electrical responses to external stimuli	15	14	$225.00	$144.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
83861 Microfluid analysis of tears	202	59	$30.00	$22.21
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	179	120	$120.00	$103.21
92250 Photography of the retina	143	110	$100.00	$60.95
99213 Established patient office or other outpatient visit, typically 15 minutes	125	74	$90.00	$70.12
92082 Exam of visual field with intermediate testing	102	77	$80.00	$41.00
92133 Imaging of optic nerve	50	36	$90.00	$33.93
92083 Exam of visual field with extended testing	49	34	$95.00	$56.77
92134 Imaging of retina	47	32	$90.00	$37.47
76513 Ultrasound scan of eye using water bath method	32	16	$100.00	$81.68
92275 Recording of retinal electrical responses to external stimuli	25	23	$225.00	$137.18
92020 Examination of cornea and iris using lens device and slit lamp	23	22	$56.00	$25.37

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License IL 046.008303

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

046008303 (IL)

Commercial Insurance / Payer ID Medicare Rr

CJ3828 (IL)

Hospital & Practice Group Affiliations

Unger Eye Care Pc

534 Edwardsville Rd, Troy, IL 622941338

Phone: 6186672020

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Alice Unger , OD

Optometrist

NPI 1265513162

Doctor of Optometry

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active November 17, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location November 17, 2009

Registered at 534 EDWARDSVILLE RD, TROY, IL 622941338 (Tel: 6186672020)

📍

Updated Business Mailing Address November 17, 2009

Registered at 534 EDWARDSVILLE RD, TROY, IL 622941338 (Tel: 6186672020)

👤

Provider Name / Credentials Updated November 17, 2009

Recorded as THOMAS UNGER, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 17, 2009

Optometrist (License #046.008303 in IL)

🟢

Initial NPI Registration & Enumeration October 17, 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: 1629158092

Entity Type:

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

Enumeration Date: October 17, 2006

Last Update: November 17, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

534 Edwardsville Rd

Troy, IL 622941338

Phone: 6186672020

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.