Active NPI 1477717759 Individual Practitioner Male Practitioner

Dr. Luke Anthony Barker , MD

Ophthalmology • Killeen, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Luke Barker, MD is a certified Ophthalmology practicing in Killeen, TX. With approximately 21 years of clinical experience since graduating from East Tennessee State University Quillen College Of Medicine in 2005, Dr. Barker delivers high-quality medical care to the local community at 2301 CLEAR CREEK RD STE 126.

Dr. Barker is affiliated with Knolle And Young Associates Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include measurement of corneal curvature and depth of eye, removal of cataract with insertion of lens, new patient complete exam of visual system. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2301 Clear Creek Rd Ste 126

Killeen, TX 765494119

Telephone 5124724011

Fax 5124725057

Associated Practice Facility / Clinic

🏢 Knolle & Young Associates Pa Facility NPI 1154432508

Medicare Profile & Education

Medical School

East Tennessee State University Quillen College Of Medicine

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Killeen, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs Matches City Avg

City Avg: 21.0 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

2 Specialists

Practicing in Killeen, TX (1616 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barker (21 Years) 21 Yrs

Killeen Specialty Average (21.0 Years) 21.0 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
92136 Measurement of corneal curvature and depth of eye	268	153	$130.95	$42.06
66984 Removal of cataract with insertion of lens	264	143	$1776.97	$520.13
92004 New patient complete exam of visual system	125	125	$493.04	$162.31
66821 Removal of recurring cataract in lens capsule using a laser	56	34	$1125.22	$342.80
66821 Removal of recurring cataract in lens capsule using a laser	55	40	$1189.05	$383.34
92134 Imaging of retina	39	37	$136.23	$44.42
99213 Established patient office or other outpatient visit, typically 15 minutes	36	35	$299.88	$98.62
92014 Established patient complete exam of visual system	29	29	$424.58	$139.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	25	22	$415.63	$136.93
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	24	$187.13	$61.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$362.83	$119.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	253	151	$132.35	$43.67
66984 Removal of cataract with insertion of lens	248	140	$1738.65	$512.54
92004 New patient complete exam of visual system	143	143	$494.31	$164.56
66821 Removal of recurring cataract in lens capsule using a laser	110	80	$1166.01	$375.81
92014 Established patient complete exam of visual system	105	102	$418.97	$140.52
92134 Imaging of retina	66	65	$134.25	$44.57
99213 Established patient office or other outpatient visit, typically 15 minutes	44	39	$300.55	$99.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	35	29	$418.02	$140.54
92133 Imaging of optic nerve	21	20	$118.99	$39.54
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	12	$190.39	$63.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	341	132	$95.74	$28.00
66984 Removal of cataract with insertion of lens	232	127	$2342.33	$491.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	145	145	$353.17	$166.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	106	103	$250.42	$130.91
66821 Removal of recurring cataract in lens capsule using a laser	91	63	$1000.00	$343.72
92134 Imaging of retina	65	64	$114.57	$42.04
99213 Established patient office or other outpatient visit, typically 15 minutes	44	40	$156.43	$93.11
92014 Established patient complete exam of visual system	35	35	$267.06	$139.13
92004 New patient complete exam of visual system	21	21	$390.00	$163.34
92133 Imaging of optic nerve	16	14	$104.75	$38.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	497	179	$92.30	$29.29
66984 Removal of cataract with insertion of lens	319	171	$2250.00	$493.55
66821 Removal of recurring cataract in lens capsule using a laser	112	81	$1000.00	$345.51
92004 New patient complete exam of visual system	101	101	$230.00	$156.83
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	94	94	$350.00	$170.43
92014 Established patient complete exam of visual system	79	79	$195.00	$132.15
92134 Imaging of retina	69	68	$110.00	$42.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	54	51	$250.00	$130.65
99213 Established patient office or other outpatient visit, typically 15 minutes	45	43	$155.00	$93.43
92012 Established patient problem focused exam of visual system	24	20	$140.00	$93.57
92133 Imaging of optic nerve	23	23	$100.00	$38.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	335	134	$91.57	$32.60
66984 Removal of cataract with insertion of lens	223	121	$2250.00	$490.11
92004 New patient complete exam of visual system	146	146	$230.00	$155.80
92014 Established patient complete exam of visual system	132	127	$195.00	$131.49
66821 Removal of recurring cataract in lens capsule using a laser	82	58	$1000.00	$345.60
92134 Imaging of retina	73	67	$110.00	$42.37
92012 Established patient problem focused exam of visual system	53	42	$140.00	$92.42
92133 Imaging of optic nerve	17	17	$100.00	$38.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	390	151	$93.21	$34.74
66984 Removal of cataract with insertion of lens	237	131	$2250.00	$581.29
92004 New patient complete exam of visual system	187	187	$225.91	$152.82
66821 Removal of recurring cataract in lens capsule using a laser	139	92	$1000.00	$331.87
92014 Established patient complete exam of visual system	139	134	$191.26	$129.08
92134 Imaging of retina	91	84	$90.00	$41.41
92012 Established patient problem focused exam of visual system	63	47	$136.83	$89.21
0191T Internal insertion of eye fluid drainage device	20	11	$1350.00	$336.70
92133 Imaging of optic nerve	17	17	$87.06	$37.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	378	149	$83.93	$36.49
66984 Removal of cataract with insertion of lens	242	136	$2250.00	$543.46
92004 New patient complete exam of visual system	187	187	$185.00	$148.18
92014 Established patient complete exam of visual system	120	117	$155.00	$122.49
66821 Removal of recurring cataract in lens capsule using a laser	61	44	$1000.00	$316.63
92012 Established patient problem focused exam of visual system	53	38	$100.00	$85.06
92134 Imaging of retina	53	51	$90.00	$40.84
92133 Imaging of optic nerve	27	27	$80.00	$37.17
92002 New patient problem focused exam of visual system	11	11	$95.00	$81.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92136 Measurement of corneal curvature and depth of eye	414	158	$83.76	$39.14
66984 Removal of cataract with insertion of lens	266	146	$2250.00	$529.92
92004 New patient complete exam of visual system	178	178	$185.00	$142.34
92014 Established patient complete exam of visual system	90	88	$155.00	$117.33
66821 Removal of recurring cataract in lens capsule using a laser	52	37	$1000.00	$309.97
92012 Established patient problem focused exam of visual system	36	31	$100.00	$82.17
92134 Imaging of retina	13	13	$90.00	$38.84

Medical Specialties & State Licenses

CMS Verified: 2025-05-27

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License TX N2396

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.

Hospital & Practice Group Affiliations

Knolle And Young Associates Pa

5200 Davis Ln, Austin, TX 787494068

Phone: 5124724011

Knolle And Young Associates Pa

5656 Bee Caves Rd, West Lake Hills, TX 787465236

Phone: 5124724011

Knolle And Young Associates Pa

218 E Austin St, New Braunfels, TX 781304106

Phone: 5124724011

Knolle And Young Associates Pa

2301 Clear Creek Rd, Killeen, TX 765494119

Phone: 5124724011

Knolle And Young Associates Pa

20871 Ih, Kyle, TX 786403821

Phone: 5124724011

Secondary Practice Locations

5656 Bee Caves Rd Ste F200

West Lake Hills, TX 787465236

Phone: 5124724011

20871 Ih 35 Ste 100

Kyle, TX 786403821

Phone: 5124724011

Practice Associates & Co-Workers

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

9 Associated Practitioners

Dr. Sue Young Knolle , MD

Ophthalmology

NPI 1043213721

Doctor of Medicine (M.D.)

Andrew Plummer

Ophthalmology

NPI 1467982710

Dr. Liana Renteria , OD

Optometrist

NPI 1508433764

Doctor of Optometry

Dr. Stanley Saulny , MD

Ophthalmology

NPI 1538140108

Doctor of Medicine (M.D.)

Dr. Ximena De Sabra , MD

Ophthalmology

NPI 1558364224

Doctor of Medicine (M.D.)

Dr. Zarmeena Vendal , MD

Ophthalmology

NPI 1770534737

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events

📍

Updated Practice Location May 27, 2025

Registered at 2301 CLEAR CREEK RD STE 126, KILLEEN, TX 765494119 (Tel: 5124724011)

📍

Updated Business Mailing Address May 27, 2025

Registered at 5656 BEE CAVES RD STE F200, WEST LAKE HILLS, TX 787465236 (Tel: 5124724011)

📍

Updated Practice Location February 02, 2023

Registered at 3025 112TH AVE NE STE 200, BELLEVUE, WA 980048002 (Tel: 3124141024)

📍

Updated Business Mailing Address February 02, 2023

Registered at 3025 112TH AVE NE STE 200, BELLEVUE, WA 980048002 (Tel: 3124141024)

✅

NPI Profile Active June 03, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location June 03, 2013

Registered at 1604 HOSPITAL PKWY, SUITE 104, BEDFORD, TX 760226986 (Tel: 8175710046)

📍

Updated Business Mailing Address June 03, 2013

Registered at 6551 HARRIS PKWY, SUITE 200, FORT WORTH, TX 761326103 (Tel: 8174231800)

👤

Provider Name / Credentials Updated June 03, 2013

Recorded as LUKE BARKER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 03, 2013

Ophthalmology (License #N2396 in TX)

🟢

Initial NPI Registration & Enumeration July 15, 2008

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: 1477717759

Entity Type:

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

Enumeration Date: July 15, 2008

Last Update: May 27, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

5656 Bee Caves Rd Ste F200

West Lake Hills, TX 787465236

Phone: 5124724011

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.