Active NPI 1710974183 Individual Practitioner Male Practitioner

Dr. Mark Robert Barlow , OD

Optometrist • Saint Louis, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Barlow, OD is a certified Optometrist practicing in Saint Louis, MO. With approximately 32 years of clinical experience since graduating from University Of Missouri St Louis - School Of Optometry in 1994, Dr. Barlow delivers high-quality medical care to the local community at 7331 WATSON RD.

Dr. Barlow is affiliated with Ophthalmology Consultants Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include photography of the retina, established patient problem focused exam of visual system, established 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

7331 Watson Rd

Saint Louis, MO 631194405

Telephone 3146338575

Fax 3143623725

Associated Practice Facility / Clinic

🏢 Ophthalmology Consultants, Llc. Facility NPI 1780865220

Medicare Profile & Education

Medical School

University Of Missouri St Louis - School Of Optometry

Graduation Year

1994

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Saint Louis, MO

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

32 Yrs +14.1 yrs vs City Avg

City Avg: 17.9 Yrs

State Avg: 21.7 Yrs

Regional Practice Density

213 Specialists

Practicing in Saint Louis, MO (1288 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

50.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barlow (32 Years) 32 Yrs

Saint Louis Specialty Average (17.9 Years) 17.9 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
92250 Photography of the retina	168	164	$125.00	$35.02
92012 Established patient problem focused exam of visual system	113	92	$160.00	$84.82
92014 Established patient complete exam of visual system	73	65	$195.00	$119.90
92004 New patient complete exam of visual system	54	54	$230.00	$142.40
92134 Imaging of retina	27	27	$100.00	$38.39
92002 New patient problem focused exam of visual system	26	26	$155.00	$80.60
92083 Exam of visual field with extended testing	25	25	$150.00	$60.16
92133 Imaging of optic nerve	18	18	$90.00	$33.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	93	93	$125.00	$36.66
99213 Established patient office or other outpatient visit, typically 15 minutes	65	54	$141.46	$89.19
92004 New patient complete exam of visual system	36	36	$238.75	$147.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	30	30	$291.67	$164.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	20	$208.57	$126.28
92012 Established patient problem focused exam of visual system	20	16	$160.00	$88.47
92134 Imaging of retina	13	13	$115.38	$39.32
92014 Established patient complete exam of visual system	13	13	$218.08	$124.37
92083 Exam of visual field with extended testing	12	12	$152.92	$61.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	66	59	$225.00	$126.52
92004 New patient complete exam of visual system	46	46	$275.00	$147.91
99213 Established patient office or other outpatient visit, typically 15 minutes	38	31	$115.00	$90.97
92012 Established patient problem focused exam of visual system	32	30	$150.00	$89.35
92134 Imaging of retina	23	21	$140.00	$40.44
92133 Imaging of optic nerve	22	20	$140.00	$35.31
92083 Exam of visual field with extended testing	21	21	$155.00	$62.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	16	$180.00	$128.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	57	51	$150.00	$89.93
92014 Established patient complete exam of visual system	47	45	$225.00	$125.56
92004 New patient complete exam of visual system	37	37	$275.00	$151.42
92083 Exam of visual field with extended testing	21	21	$155.00	$60.45
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$115.00	$89.42
92250 Photography of the retina	17	17	$130.00	$38.62
92133 Imaging of optic nerve	16	16	$130.00	$35.60
92134 Imaging of retina	15	15	$130.00	$37.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	53	52	$225.00	$124.79
92004 New patient complete exam of visual system	50	50	$275.00	$151.05
92250 Photography of the retina	44	44	$130.00	$43.15
92012 Established patient problem focused exam of visual system	41	37	$150.00	$88.82
99213 Established patient office or other outpatient visit, typically 15 minutes	31	31	$100.00	$75.51
92083 Exam of visual field with extended testing	30	30	$155.00	$63.23
92134 Imaging of retina	18	17	$130.00	$39.99
92133 Imaging of optic nerve	16	16	$130.00	$35.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	11	$75.00	$45.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	461	296	$130.35	$86.98
92250 Photography of the retina	338	329	$83.52	$49.11
92014 Established patient complete exam of visual system	242	232	$186.71	$124.87
92134 Imaging of retina	163	158	$65.00	$40.39
92083 Exam of visual field with extended testing	109	108	$94.87	$62.00
92133 Imaging of optic nerve	90	88	$65.00	$36.24
67820 Removal of eyelashes using forceps	13	12	$56.62	$32.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	474	290	$125.00	$85.75
92250 Photography of the retina	366	351	$120.00	$54.22
92014 Established patient complete exam of visual system	248	235	$182.00	$123.41
92083 Exam of visual field with extended testing	136	127	$94.00	$62.72
92134 Imaging of retina	132	125	$65.00	$40.30
92133 Imaging of optic nerve	117	115	$65.00	$36.20
92275 Recording of retinal electrical responses to external stimuli	50	50	$214.00	$146.06
92004 New patient complete exam of visual system	20	20	$219.00	$148.19
92002 New patient problem focused exam of visual system	19	19	$120.00	$81.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	545	325	$125.00	$82.55
92250 Photography of the retina	403	375	$120.00	$62.78
92014 Established patient complete exam of visual system	217	207	$182.00	$120.33
92083 Exam of visual field with extended testing	145	141	$94.00	$59.25
92134 Imaging of retina	132	123	$65.00	$39.45
92133 Imaging of optic nerve	92	90	$65.00	$35.71
92275 Recording of retinal electrical responses to external stimuli	65	65	$214.00	$143.70
92002 New patient problem focused exam of visual system	31	31	$120.00	$79.12
92004 New patient complete exam of visual system	15	15	$219.00	$145.39
76514 Ultrasound scan of cornea to determine thickness	12	12	$23.00	$13.84
67820 Removal of eyelashes using forceps	12	11	$80.17	$51.23

Medical Specialties & State Licenses

CMS Verified: 2025-08-21

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License MO 2013007905

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

310075018 (MO)

Hospital & Practice Group Affiliations

Ophthalmology Consultants Llc

12990 Manchester Rd, Saint Louis, MO 631311860

Phone: 3149090633

Secondary Practice Locations

1224 Graham Rd Ste 2007

Florissant, MO 630318026

Phone: 3148373667

12692 Lamplighter Square Shpg Ctr

Saint Louis, MO 631282746

Phone: 3144325478

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Jing-Wei Huang , MD

Ophthalmology - Cornea and External Diseases Specialist

NPI 1023194131

Doctor of Medicine (M.D.)

Dr. Eric Harris , OD

Optometrist

NPI 1043591365

Doctor of Optometry

Dr. Aaron Lee , MD

Ophthalmology - Retina Specialist

NPI 1063649713

Doctor of Medicine (M.D.)

Dr. James Liu , MD

Ophthalmology - Glaucoma Specialist

NPI 1093101974

Doctor of Medicine (M.D.)

Dr. Arjun Merchant , MD

Ophthalmology - Retina Specialist

NPI 1093342040

Doctor of Medicine (M.D.)

Dr. Gregory Vanstavern , MD

Ophthalmology - Neuro-ophthalmology

NPI 1134166051

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events

📍

Updated Practice Location August 21, 2025

Registered at 7331 WATSON RD, SAINT LOUIS, MO 631194405 (Tel: 3146338575)

📍

Updated Business Mailing Address August 21, 2025

Registered at PO BOX 736480, CHICAGO, IL 606731407 (Tel: 3146338575)

📍

Updated Practice Location December 02, 2019

Registered at 4901 FOREST PARK AVE, 6TH FL, SAINT LOUIS, MO 631081495 (Tel: 3143623937)

📍

Updated Business Mailing Address December 02, 2019

Registered at 660 S EUCLID AVE, CB 8096, SAINT LOUIS, MO 631101010 (Tel: 3143623937)

👤

Provider Name / Credentials Updated December 02, 2019

Recorded as MARK BARLOW, OD

✅

NPI Profile Active September 26, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location September 26, 2014

Registered at 7331 WATSON RD, SAINT LOUIS, MO 631194405 (Tel: 3146338575)

📍

Updated Business Mailing Address September 26, 2014

Registered at 7331 WATSON RD, SAINT LOUIS, MO 631194405 (Tel: 3146338575)

👤

Provider Name / Credentials Updated September 26, 2014

Recorded as MARK BARLOW, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 26, 2014

Optometrist (License #2013007905 in MO)

🟢

Initial NPI Registration & Enumeration September 30, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1710974183

Entity Type:

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

Enumeration Date: September 30, 2005

Last Update: August 21, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 736480

Chicago, IL 606731407

Phone: 3146338575

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.