Active NPI 1407975113 Individual Practitioner Male Practitioner

Dr. John W Barnhart , OD

Optometrist • Warren, OH

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Barnhart, OD is a certified Optometrist practicing in Warren, OH. With approximately 35 years of clinical experience since graduating from Ohio State University - College Of Optometry in 1991, Dr. Barnhart delivers high-quality medical care to the local community at 4620 MAHONING AVE NW.

Dr. Barnhart accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, established patient outpatient office visit, imaging of optic nerve. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4620 Mahoning Ave Nw

Warren, OH 444831419

Telephone 3308479093

Fax 3308472225

Associated Practice Facility / Clinic

🏢 John W Barnhart Od Inc. Facility NPI 1104851278

Medicare Profile & Education

Medical School

Ohio State University - College Of Optometry

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Warren, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +10.5 yrs vs City Avg

City Avg: 24.5 Yrs

State Avg: 23.4 Yrs

Regional Practice Density

12 Specialists

Practicing in Warren, OH (2535 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

32.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Barnhart (35 Years) 35 Yrs

Warren Specialty Average (24.5 Years) 24.5 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
92014 Established patient complete exam of visual system	128	126	$125.16	$116.05
99213 Established patient office or other outpatient visit, typically 15 minutes	81	53	$82.12	$79.72
92133 Imaging of optic nerve	43	36	$140.00	$30.85
92083 Exam of visual field with extended testing	36	34	$77.77	$56.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	32	30	$110.00	$106.50
92250 Photography of the retina	27	27	$77.77	$34.17
92134 Imaging of retina	25	25	$140.00	$35.68
92004 New patient complete exam of visual system	23	23	$148.00	$138.72
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	16	$48.00	$47.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
66984 Removal of cataract with insertion of lens	1,890	14	$3.33	$1.13
92014 Established patient complete exam of visual system	132	129	$125.00	$117.88
99213 Established patient office or other outpatient visit, typically 15 minutes	86	61	$82.00	$80.11
92083 Exam of visual field with extended testing	46	42	$77.77	$58.05
92133 Imaging of optic nerve	40	35	$140.00	$32.05
92004 New patient complete exam of visual system	37	37	$148.00	$141.02
92250 Photography of the retina	37	37	$77.77	$34.11
92134 Imaging of retina	25	23	$140.00	$37.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	23	$110.00	$108.28
92081 Exam of visual field with limited testing	13	13	$50.00	$29.21
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$48.00	$47.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	137	137	$125.00	$119.84
99213 Established patient office or other outpatient visit, typically 15 minutes	63	52	$82.00	$80.21
92133 Imaging of optic nerve	37	35	$140.00	$33.74
92250 Photography of the retina	31	31	$77.77	$35.08
92134 Imaging of retina	27	25	$140.00	$38.34
92083 Exam of visual field with extended testing	26	26	$77.77	$59.35
92004 New patient complete exam of visual system	18	18	$148.00	$143.47
92081 Exam of visual field with limited testing	14	14	$50.00	$31.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$110.00	$108.93
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$48.00	$47.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	131	129	$123.28	$121.22
99213 Established patient office or other outpatient visit, typically 15 minutes	67	48	$82.00	$82.00
92133 Imaging of optic nerve	38	32	$140.00	$34.54
92250 Photography of the retina	37	37	$77.77	$37.57
92083 Exam of visual field with extended testing	25	24	$77.77	$59.99
92134 Imaging of retina	24	23	$140.00	$38.54
92004 New patient complete exam of visual system	23	23	$145.61	$144.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	14	$48.00	$48.00
92081 Exam of visual field with limited testing	14	14	$50.00	$31.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	137	136	$120.00	$119.79
99213 Established patient office or other outpatient visit, typically 15 minutes	59	46	$82.00	$72.78
92250 Photography of the retina	43	43	$77.77	$42.83
92134 Imaging of retina	31	27	$140.00	$38.62
92083 Exam of visual field with extended testing	26	26	$77.77	$60.19
92133 Imaging of optic nerve	24	20	$140.00	$34.63
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	21	15	$48.00	$43.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	127	125	$120.00	$118.33
99213 Established patient office or other outpatient visit, typically 15 minutes	54	38	$82.00	$71.09
92250 Photography of the retina	49	48	$77.77	$47.72
92225 Examination of eye by ophthalmoscope with retinal drawing	47	35	$25.55	$25.16
92083 Exam of visual field with extended testing	29	27	$77.77	$60.58
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	18	$48.00	$42.94
92134 Imaging of retina	24	20	$140.00	$38.12
92004 New patient complete exam of visual system	23	23	$143.00	$140.99
92133 Imaging of optic nerve	23	20	$140.00	$34.20
92081 Exam of visual field with limited testing	16	15	$50.00	$31.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	129	126	$112.87	$108.00
99213 Established patient office or other outpatient visit, typically 15 minutes	47	33	$82.00	$65.25
92250 Photography of the retina	47	47	$77.77	$50.77
92083 Exam of visual field with extended testing	28	28	$77.77	$57.46
92134 Imaging of retina	28	24	$140.00	$35.38
92225 Examination of eye by ophthalmoscope with retinal drawing	26	21	$25.55	$24.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	25	21	$48.00	$39.48
92004 New patient complete exam of visual system	23	23	$134.74	$131.34
92133 Imaging of optic nerve	22	18	$140.00	$32.69
92081 Exam of visual field with limited testing	15	15	$50.00	$30.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	114	114	$110.00	$105.45
99213 Established patient office or other outpatient visit, typically 15 minutes	48	40	$82.00	$66.55
92250 Photography of the retina	46	46	$77.77	$59.44
92004 New patient complete exam of visual system	39	39	$133.00	$126.81
92133 Imaging of optic nerve	31	24	$140.00	$33.09
92083 Exam of visual field with extended testing	29	28	$77.77	$55.74
92225 Examination of eye by ophthalmoscope with retinal drawing	25	23	$25.55	$23.04
92134 Imaging of retina	21	19	$140.00	$37.18
92012 Established patient problem focused exam of visual system	15	12	$70.00	$67.88
92081 Exam of visual field with limited testing	15	15	$50.00	$30.28
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$48.00	$40.06

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License OH 4265

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

0141868 (OH)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 02, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location October 02, 2012

Registered at 4620 MAHONING AVE NW, WARREN, OH 444831419 (Tel: 3308479093)

📍

Updated Business Mailing Address October 02, 2012

Registered at 4620 MAHONING AVE NW, WARREN, OH 444831419 (Tel: 3308479093)

👤

Provider Name / Credentials Updated October 02, 2012

Recorded as JOHN BARNHART, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 02, 2012

Optometrist (License #4265 in OH)

🟢

Initial NPI Registration & Enumeration March 27, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1407975113

Entity Type:

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

Enumeration Date: March 27, 2007

Last Update: October 02, 2012

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

4620 Mahoning Ave Nw

Warren, OH 444831419

Phone: 3308479093

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.