Active NPI 1033554118 Individual Practitioner Male Practitioner

Dr. Marshall Walker , OD

Optometrist • Perkins, OK

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Marshall Walker, OD is a certified Optometrist practicing in Perkins, OK. With approximately 13 years of clinical experience since graduating from Pennsylvania College Of Optometry in 2013, Dr. Walker delivers high-quality medical care to the local community at 509 E HIGHWAY 33.

Dr. Walker accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, imaging of retina, extended exam of the back part of the eye with optic nerve drawing. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

509 E Highway 33

Perkins, OK 740594129

Telephone 4055472473

Fax 4055472925

Associated Practice Facility / Clinic

🏢 Iowa Tribe Of Oklahoma Facility NPI 1881616456

Medicare Profile & Education

Medical School

Pennsylvania College Of Optometry

Graduation Year

2013

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Perkins, OK

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

13 Yrs Matches City Avg

City Avg: 13.0 Yrs

State Avg: 22.4 Yrs

Regional Practice Density

1 Specialists

Practicing in Perkins, OK (943 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

42.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (13 Years) 13 Yrs

Perkins Specialty Average (13.0 Years) 13.0 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	689	373	$140.00	$118.90
92134 Imaging of retina	438	341	$62.00	$36.36
92202 Extended exam of the back part of the eye with optic nerve drawing	294	219	$36.00	$14.32
92083 Exam of visual field with extended testing	97	70	$110.00	$57.20
68761 Closure of tear duct opening using plug	70	17	$206.46	$144.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$215.00	$155.29
92133 Imaging of optic nerve	37	30	$62.00	$31.96
66984 Removal of cataract with insertion of lens	32	19	$300.00	$98.84
92071 Fitting of contact lens for treatment of eye surface disease	30	13	$82.53	$33.62
92020 Examination of cornea and iris using lens device and slit lamp	20	13	$47.00	$25.17
92250 Photography of the retina	18	18	$112.00	$33.86
92060 Exam to measure eye deviation and range of motion	15	11	$70.00	$58.03
99213 Established patient office or other outpatient visit, typically 15 minutes	12	12	$95.00	$84.10

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	478	316	$136.77	$119.20
92134 Imaging of retina	388	297	$62.00	$36.33
92202 Extended exam of the back part of the eye with optic nerve drawing	286	217	$36.00	$14.57
92083 Exam of visual field with extended testing	152	93	$110.00	$56.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$201.18	$155.35
92133 Imaging of optic nerve	34	27	$62.00	$31.70
99213 Established patient office or other outpatient visit, typically 15 minutes	31	25	$101.55	$84.01
66984 Removal of cataract with insertion of lens	29	17	$300.00	$99.06
92250 Photography of the retina	28	28	$108.89	$33.90

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	376	226	$136.32	$121.19
92134 Imaging of retina	251	179	$62.00	$36.81
92202 Extended exam of the back part of the eye with optic nerve drawing	198	135	$36.00	$15.00
92083 Exam of visual field with extended testing	168	93	$110.00	$57.81
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	88	88	$195.56	$159.16
92250 Photography of the retina	80	74	$109.70	$33.96
92133 Imaging of optic nerve	52	40	$62.00	$32.17
99213 Established patient office or other outpatient visit, typically 15 minutes	37	29	$102.00	$85.78
66984 Removal of cataract with insertion of lens	35	21	$300.00	$101.43
92020 Examination of cornea and iris using lens device and slit lamp	24	16	$47.00	$26.39
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	20	17	$186.00	$171.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	128	127	$165.70	$118.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	124	124	$196.06	$160.64
92250 Photography of the retina	114	112	$111.70	$36.74
92004 New patient complete exam of visual system	107	107	$195.72	$141.72
92202 Extended exam of the back part of the eye with optic nerve drawing	96	83	$36.00	$15.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	90	74	$144.53	$124.03
92134 Imaging of retina	88	78	$62.17	$37.60
92083 Exam of visual field with extended testing	69	54	$110.14	$59.05
99213 Established patient office or other outpatient visit, typically 15 minutes	38	27	$120.95	$87.07
92133 Imaging of optic nerve	32	26	$62.00	$33.00
92020 Examination of cornea and iris using lens device and slit lamp	25	20	$47.00	$26.63
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	20	18	$252.70	$173.58
66984 Removal of cataract with insertion of lens	19	11	$300.00	$102.24
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	16	16	$351.31	$212.79
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$120.36	$69.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	215	213	$165.32	$120.03
92004 New patient complete exam of visual system	114	114	$228.35	$143.74
92250 Photography of the retina	92	92	$103.38	$41.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	88	72	$160.00	$104.64
99213 Established patient office or other outpatient visit, typically 15 minutes	46	32	$110.00	$71.97
92134 Imaging of retina	42	38	$77.00	$38.61
99354 Prolonged office or other outpatient service first hour	40	26	$230.00	$127.64
99202 New patient office or other outpatient visit, typically 20 minutes	20	20	$125.00	$72.96
92133 Imaging of optic nerve	19	14	$82.00	$35.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	207	204	$163.17	$118.44
92004 New patient complete exam of visual system	202	202	$226.91	$142.04
99213 Established patient office or other outpatient visit, typically 15 minutes	77	47	$110.00	$68.75
92134 Imaging of retina	66	56	$77.00	$38.48
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	58	41	$160.00	$101.78
99202 New patient office or other outpatient visit, typically 20 minutes	33	33	$125.00	$71.85
99354 Prolonged office or other outpatient service first hour	30	20	$230.00	$125.32
92133 Imaging of optic nerve	20	16	$82.00	$33.30
92083 Exam of visual field with extended testing	15	11	$120.00	$59.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$160.00	$102.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92004 New patient complete exam of visual system	32	32	$276.00	$137.90
99202 New patient office or other outpatient visit, typically 20 minutes	31	31	$125.00	$68.03
92134 Imaging of retina	31	30	$77.52	$36.84
99213 Established patient office or other outpatient visit, typically 15 minutes	29	20	$110.00	$66.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	30	29	$110.00	$37.61

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License OK 2799

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.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Practice Associates & Co-Workers

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

32 Associated Practitioners

Nina Henderson

Peer Specialist

NPI 1083451348

Dusty Wells

Community Health Worker

NPI 1093552358

Alexandria Harjo

Case Manager/Care Coordinator

NPI 1114507282

Dr. Melissa Herring , DO

Family Medicine

NPI 1124447792

Doctor of Osteopathic Medicine (D.O.)

Dr. William Lane , DC

Chiropractor

NPI 1134355076

Doctor of Chiropractic

Joshua Nooner , MS, RD, LD, CDCES

Dietitian, Registered

NPI 1134662190

Master of Science, Registered Dietitian, Licensed Dietitian, Certified Diabetes Care and Education Specialist

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 29, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location July 29, 2014

Registered at 509 E HIGHWAY 33, PERKINS, OK 740594129 (Tel: 4055472473)

📍

Updated Business Mailing Address July 29, 2014

Registered at 509 E HIGHWAY 33, PERKINS, OK 740594129 (Tel: 4055472473)

👤

Provider Name / Credentials Updated July 29, 2014

Recorded as MARSHALL WALKER, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 29, 2014

Optometrist (License #2799 in OK)

🟢

Initial NPI Registration & Enumeration May 02, 2013

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Marshall Walker. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1033554118

Entity Type:

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

Enumeration Date: May 02, 2013

Last Update: July 29, 2014

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

509 E Highway 33

Perkins, OK 740594129

Phone: 4055472473

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.