Active NPI 1376571687 Individual Practitioner Male Practitioner

Dr. Thomas E Marshall , MD

Ophthalmology • Baytown, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Marshall, MD is a certified Ophthalmology practicing in Baytown, TX. With approximately 41 years of clinical experience since graduating from University Of Texas Medical School At San Antonio in 1985, Dr. Marshall delivers high-quality medical care to the local community at 1025 BIRDSONG DR STE A.

Dr. Marshall is affiliated with Berkeley Eye Institute, Pllc and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

1025 Birdsong Dr Ste A

Baytown, TX 775213771

Telephone 2814222020

Fax 2814224959

Associated Practice Facility / Clinic

🏢 Berkeley Eye Institute, Pllc Facility NPI 1962266510

Medicare Profile & Education

Medical School

University Of Texas Medical School At San Antonio

Graduation Year

1985

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Baytown, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

41 Yrs -5.3 yrs vs City Avg

City Avg: 46.3 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

4 Specialists

Practicing in Baytown, TX (1616 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

58.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Marshall (41 Years) 41 Yrs

Baytown Specialty Average (46.3 Years) 46.3 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
92014 Established patient complete exam of visual system	333	288	$138.00	$116.08
92136 Measurement of corneal curvature and depth of eye	271	109	$68.54	$22.87
66984 Removal of cataract with insertion of lens	139	89	$1795.00	$483.19
92134 Imaging of retina	88	76	$100.00	$36.13
92012 Established patient problem focused exam of visual system	84	67	$100.00	$82.79
92133 Imaging of optic nerve	73	70	$100.00	$33.65
92004 New patient complete exam of visual system	46	46	$170.00	$139.35
92083 Exam of visual field with extended testing	46	44	$99.13	$57.54
66821 Removal of recurring cataract in lens capsule using a laser	28	23	$485.00	$308.69
92020 Examination of cornea and iris using lens device and slit lamp	23	22	$52.17	$25.58
76514 Ultrasound scan of cornea to determine thickness	14	14	$35.71	$10.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	368	329	$216.21	$127.78
92136 Measurement of corneal curvature and depth of eye	173	107	$87.66	$37.53
66984 Removal of cataract with insertion of lens	149	93	$1931.21	$544.23
92012 Established patient problem focused exam of visual system	111	90	$154.77	$91.05
92134 Imaging of retina	97	76	$100.00	$40.59
92133 Imaging of optic nerve	81	78	$100.00	$36.90
66821 Removal of recurring cataract in lens capsule using a laser	40	32	$874.38	$337.24
92083 Exam of visual field with extended testing	40	39	$173.00	$63.16
92004 New patient complete exam of visual system	36	36	$303.33	$151.50
92020 Examination of cornea and iris using lens device and slit lamp	33	31	$64.55	$27.96
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	27	20	$57.04	$23.51
76514 Ultrasound scan of cornea to determine thickness	18	18	$31.67	$11.20
66991 Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye	12	11	$2125.00	$685.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	401	361	$245.00	$129.56
92136 Measurement of corneal curvature and depth of eye	139	97	$100.00	$48.42
68841 Insertion of drug delivery implant into tear duct of eye	121	82	$200.00	$16.63
92012 Established patient problem focused exam of visual system	121	94	$180.00	$92.42
66984 Removal of cataract with insertion of lens	116	79	$2000.00	$546.27
92133 Imaging of optic nerve	99	92	$100.00	$37.65
92134 Imaging of retina	82	67	$100.00	$41.04
92004 New patient complete exam of visual system	54	54	$330.00	$155.15
92020 Examination of cornea and iris using lens device and slit lamp	41	36	$70.00	$28.92
66821 Removal of recurring cataract in lens capsule using a laser	35	26	$1000.00	$342.89
92083 Exam of visual field with extended testing	32	32	$190.00	$64.87
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	26	23	$70.00	$23.94
76514 Ultrasound scan of cornea to determine thickness	20	20	$35.00	$11.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	410	359	$245.00	$131.02
92012 Established patient problem focused exam of visual system	165	117	$180.00	$93.34
0356T Insertion of drug delivery implant into tear ducts	120	92	$200.00	$106.05
92136 Measurement of corneal curvature and depth of eye	118	89	$100.00	$50.17
66984 Removal of cataract with insertion of lens	113	85	$2000.00	$550.46
92134 Imaging of retina	97	77	$100.00	$41.93
92133 Imaging of optic nerve	88	85	$100.00	$38.69
92004 New patient complete exam of visual system	82	82	$330.00	$156.87
92083 Exam of visual field with extended testing	49	48	$190.00	$66.03
92020 Examination of cornea and iris using lens device and slit lamp	47	44	$70.00	$28.46
66821 Removal of recurring cataract in lens capsule using a laser	36	32	$1000.00	$348.59
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	27	21	$70.00	$23.67
66982 Complex removal of cataract with insertion of prosthetic lens	16	14	$2500.00	$737.87
0191T Internal insertion of eye fluid drainage device	14	11	$400.00	$354.84
76514 Ultrasound scan of cornea to determine thickness	12	12	$35.00	$11.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	536	486	$245.00	$130.95
92012 Established patient problem focused exam of visual system	241	158	$180.00	$91.67
92133 Imaging of optic nerve	135	134	$100.00	$38.52
92136 Measurement of corneal curvature and depth of eye	125	84	$100.00	$54.01
66984 Removal of cataract with insertion of lens	122	80	$2000.00	$559.14
92134 Imaging of retina	100	84	$100.00	$42.33
92004 New patient complete exam of visual system	85	85	$330.00	$156.07
92083 Exam of visual field with extended testing	80	77	$190.00	$65.64
0356T Insertion of drug delivery implant into tear ducts	70	50	$200.00	$102.25
92020 Examination of cornea and iris using lens device and slit lamp	60	57	$70.00	$28.80
66821 Removal of recurring cataract in lens capsule using a laser	55	45	$1000.00	$345.87
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	37	29	$70.00	$23.93
76514 Ultrasound scan of cornea to determine thickness	23	23	$35.00	$11.88
66982 Complex removal of cataract with insertion of prosthetic lens	11	11	$2500.00	$782.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	573	514	$245.15	$129.56
92012 Established patient problem focused exam of visual system	237	151	$180.00	$90.74
66984 Removal of cataract with insertion of lens	148	100	$2000.00	$653.15
92136 Measurement of corneal curvature and depth of eye	122	89	$100.00	$60.15
92133 Imaging of optic nerve	112	110	$100.00	$37.82
92134 Imaging of retina	82	71	$100.00	$42.10
92004 New patient complete exam of visual system	74	74	$334.46	$155.33
92083 Exam of visual field with extended testing	64	62	$190.00	$65.92
66821 Removal of recurring cataract in lens capsule using a laser	58	45	$1000.00	$342.87
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	46	37	$65.00	$23.31
92020 Examination of cornea and iris using lens device and slit lamp	42	39	$70.00	$28.47
76519 Ultrasound of eye for determination of lens power	39	28	$100.00	$50.76
76514 Ultrasound scan of cornea to determine thickness	24	24	$35.00	$12.49
65855 Laser repair to improve eye fluid flow	15	14	$1200.00	$255.18
66982 Complex removal of cataract with insertion of prosthetic lens	13	13	$2500.00	$821.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	618	548	$245.00	$127.41
92012 Established patient problem focused exam of visual system	246	153	$180.00	$88.34
92136 Measurement of corneal curvature and depth of eye	211	138	$100.00	$60.88
66984 Removal of cataract with insertion of lens	196	125	$2000.00	$647.64
92004 New patient complete exam of visual system	126	126	$330.00	$151.98
92133 Imaging of optic nerve	107	104	$100.00	$38.11
92134 Imaging of retina	89	72	$100.00	$40.94
92083 Exam of visual field with extended testing	78	74	$190.00	$63.61
66821 Removal of recurring cataract in lens capsule using a laser	47	39	$1000.00	$333.40
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	38	36	$65.00	$21.94
92020 Examination of cornea and iris using lens device and slit lamp	34	34	$70.00	$26.56
66982 Complex removal of cataract with insertion of prosthetic lens	25	19	$2500.00	$813.27
76514 Ultrasound scan of cornea to determine thickness	16	16	$35.00	$15.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	602	524	$245.00	$124.31
92012 Established patient problem focused exam of visual system	242	178	$180.00	$86.40
92136 Measurement of corneal curvature and depth of eye	232	158	$100.00	$69.35
66984 Removal of cataract with insertion of lens	212	142	$2000.00	$637.22
92133 Imaging of optic nerve	131	119	$100.00	$37.47
92004 New patient complete exam of visual system	111	111	$330.00	$147.59
92134 Imaging of retina	92	78	$100.00	$41.45
92083 Exam of visual field with extended testing	51	49	$190.00	$63.94
92020 Examination of cornea and iris using lens device and slit lamp	45	44	$70.00	$27.25
66821 Removal of recurring cataract in lens capsule using a laser	42	38	$1000.00	$329.80
76514 Ultrasound scan of cornea to determine thickness	26	26	$35.00	$14.76
66982 Complex removal of cataract with insertion of prosthetic lens	25	23	$2500.00	$805.79
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	24	24	$65.00	$20.41
99221 Initial hospital inpatient care per day, typically 30 minutes	16	14	$138.75	$102.80
92002 New patient problem focused exam of visual system	11	11	$200.00	$82.16

Medical Specialties & State Licenses

CMS Verified: 2024-10-16

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License TX H0603

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

125529103 (TX)

Hospital & Practice Group Affiliations

Berkeley Eye Institute, Pllc

3100 Weslayan St, Houston, TX 770275752

Phone: 7135261600

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Hanh Nguyen , OD

Optometrist

NPI 1275591950

Doctor of Optometry

Dr. Martin Arisco , MD

Ophthalmology

NPI 1619904398

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location October 16, 2024

Registered at 1025 BIRDSONG DR STE A, BAYTOWN, TX 775213771 (Tel: 2814222020)

📍

Updated Business Mailing Address October 16, 2024

Registered at 21502 MERCHANTS WAY, KATY, TX 774492517 (Tel: 2819442232)

📍

Updated Practice Location June 20, 2023

Registered at 4301 GARTH RD STE 100, BAYTOWN, TX 775213157 (Tel: 2814222020)

✅

NPI Profile Active October 24, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location October 24, 2007

Registered at 4301 GARTH RD, SUITE 100, BAYTOWN, TX 775213153 (Tel: 2814222020)

📍

Updated Business Mailing Address October 24, 2007

Registered at 4301 GARTH RD, SUITE 100, BAYTOWN, TX 775213153 (Tel: 2814222020)

👤

Provider Name / Credentials Updated October 24, 2007

Recorded as THOMAS MARSHALL, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 24, 2007

Ophthalmology (License #H0603 in TX)

🟢

Initial NPI Registration & Enumeration June 28, 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: 1376571687

Entity Type:

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

Enumeration Date: June 28, 2006

Last Update: October 16, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

21502 Merchants Way

Katy, TX 774492517

Phone: 2819442232

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.