Active NPI 1346237344 Individual Practitioner Male Practitioner

Dr. Gregory J Louis , MD

Specialist • Euclid, OH

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Louis, MD is a certified Specialist practicing in Euclid, OH. With approximately 43 years of clinical experience since graduating from University Of Cincinnati College Of Medicine in 1983, Dr. Louis delivers high-quality medical care to the local community at 26300 EUCLID AVE.

Dr. Louis is affiliated with Cei Physicians Psc, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, photography of the retina, exam of visual field with extended testing. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

26300 Euclid Ave
Suite 312

Euclid, OH 441323708

Telephone 2165748900

Fax 2167312627

Associated Practice Facility / Clinic

🏢 Lake West Services, Inc Facility NPI 1962443341

Medicare Profile & Education

Medical School

University Of Cincinnati College Of Medicine

Graduation Year

1983

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Euclid, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

43 Yrs +6.0 yrs vs City Avg

City Avg: 37.0 Yrs

State Avg: 37.3 Yrs

Regional Practice Density

9 Specialists

Practicing in Euclid, OH (1444 Statewide)

Telehealth Adoption Rate

11.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

73.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Louis (43 Years) 43 Yrs

Euclid Specialty Average (37.0 Years) 37.0 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
99213 Established patient office or other outpatient visit, typically 15 minutes	717	649	$201.74	$87.43
92250 Photography of the retina	383	382	$125.48	$34.24
92083 Exam of visual field with extended testing	267	260	$181.36	$59.51
92134 Imaging of retina	233	229	$129.87	$37.74
92133 Imaging of optic nerve	180	176	$114.90	$32.45
66984 Removal of cataract with insertion of lens	173	108	$1742.51	$492.93
92136 Measurement of corneal curvature and depth of eye	166	134	$141.82	$39.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	166	151	$375.06	$123.61
92014 Established patient complete exam of visual system	117	117	$484.50	$119.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	95	95	$399.37	$161.69
66821 Removal of recurring cataract in lens capsule using a laser	62	48	$1280.26	$295.46
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$242.98	$107.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	20	$120.10	$54.16
66982 Complex removal of cataract with insertion of prosthetic lens	17	13	$3088.24	$624.79
76514 Ultrasound scan of cornea to determine thickness	12	12	$48.00	$10.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,014	897	$156.09	$86.10
92250 Photography of the retina	581	571	$125.00	$34.32
92083 Exam of visual field with extended testing	280	279	$150.00	$58.31
92134 Imaging of retina	253	246	$100.00	$37.51
66984 Removal of cataract with insertion of lens	207	140	$1500.00	$471.22
92136 Measurement of corneal curvature and depth of eye	200	166	$113.60	$40.92
92133 Imaging of optic nerve	174	174	$90.00	$32.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	142	135	$220.85	$122.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	119	119	$280.00	$159.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	76	76	$190.00	$107.29
66821 Removal of recurring cataract in lens capsule using a laser	71	57	$1360.00	$290.99
92014 Established patient complete exam of visual system	30	30	$195.00	$119.18
92082 Exam of visual field with intermediate testing	22	22	$115.00	$43.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	21	20	$115.00	$53.57
66982 Complex removal of cataract with insertion of prosthetic lens	21	15	$3300.00	$639.67
76514 Ultrasound scan of cornea to determine thickness	17	17	$50.00	$10.18
92060 Exam to measure eye deviation and range of motion	11	11	$150.00	$58.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,049	925	$155.00	$87.58
92250 Photography of the retina	535	528	$125.00	$34.41
92083 Exam of visual field with extended testing	310	310	$150.00	$59.18
92134 Imaging of retina	259	252	$100.00	$37.92
66984 Removal of cataract with insertion of lens	227	155	$1500.00	$476.10
92136 Measurement of corneal curvature and depth of eye	227	179	$102.86	$41.02
92133 Imaging of optic nerve	192	191	$90.00	$33.01
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	122	122	$280.00	$162.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	105	104	$220.00	$123.71
66821 Removal of recurring cataract in lens capsule using a laser	86	66	$1360.00	$293.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	64	64	$190.00	$108.87
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	26	$115.00	$54.31
65855 Laser repair to improve eye fluid flow	15	11	$1100.00	$234.04
67840 Removal of eyelid growth	11	11	$600.00	$270.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	890	765	$137.13	$86.56
92250 Photography of the retina	703	680	$113.44	$36.31
92083 Exam of visual field with extended testing	491	453	$127.95	$59.89
92136 Measurement of corneal curvature and depth of eye	286	193	$89.72	$42.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	285	279	$161.68	$126.24
66984 Removal of cataract with insertion of lens	244	149	$1250.00	$481.72
92133 Imaging of optic nerve	243	242	$94.61	$33.11
92134 Imaging of retina	240	234	$100.08	$38.57
92012 Established patient problem focused exam of visual system	158	156	$92.47	$85.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	86	86	$248.08	$164.15
66821 Removal of recurring cataract in lens capsule using a laser	84	68	$925.71	$299.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$173.75	$109.66
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	25	25	$237.00	$208.73
92004 New patient complete exam of visual system	25	25	$161.20	$144.06
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	23	$94.38	$54.37
65820 Incision to improve eye fluid flow	22	16	$1450.00	$748.68
92014 Established patient complete exam of visual system	21	21	$130.00	$121.86
92060 Exam to measure eye deviation and range of motion	21	20	$114.29	$59.20
65855 Laser repair to improve eye fluid flow	18	13	$983.33	$239.23
76514 Ultrasound scan of cornea to determine thickness	18	18	$50.00	$10.67
92082 Exam of visual field with intermediate testing	15	14	$99.00	$45.30
92002 New patient problem focused exam of visual system	13	13	$100.00	$82.89
67904 Repair of tendon of upper eyelid	12	12	$1416.67	$815.37
68200 Injection into conjunctiva	12	11	$50.00	$40.29
67840 Removal of eyelid growth	11	11	$509.09	$277.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	713	696	$89.87	$85.33
92250 Photography of the retina	611	596	$94.64	$41.70
92083 Exam of visual field with extended testing	443	412	$99.60	$60.44
99213 Established patient office or other outpatient visit, typically 15 minutes	441	355	$88.22	$72.96
92136 Measurement of corneal curvature and depth of eye	285	187	$80.00	$47.35
66984 Removal of cataract with insertion of lens	240	149	$1000.00	$495.31
92133 Imaging of optic nerve	238	236	$100.00	$33.81
92134 Imaging of retina	161	158	$100.00	$38.58
92004 New patient complete exam of visual system	115	115	$158.61	$143.53
92014 Established patient complete exam of visual system	84	82	$129.64	$122.29
66821 Removal of recurring cataract in lens capsule using a laser	72	59	$400.00	$304.48
92002 New patient problem focused exam of visual system	46	46	$100.00	$81.44
66982 Complex removal of cataract with insertion of prosthetic lens	24	16	$1200.00	$672.64
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	23	$70.00	$44.09
92020 Examination of cornea and iris using lens device and slit lamp	17	17	$50.00	$27.06
92060 Exam to measure eye deviation and range of motion	16	16	$75.00	$60.59
92082 Exam of visual field with intermediate testing	15	15	$75.00	$45.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$130.00	$106.94
67904 Repair of tendon of upper eyelid	12	12	$1000.00	$825.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	838	663	$99.31	$70.96
92250 Photography of the retina	817	781	$94.64	$45.59
92012 Established patient problem focused exam of visual system	693	674	$89.93	$83.89
92083 Exam of visual field with extended testing	612	551	$99.59	$60.06
92136 Measurement of corneal curvature and depth of eye	304	204	$81.25	$52.50
92133 Imaging of optic nerve	285	281	$100.00	$32.85
66984 Removal of cataract with insertion of lens	274	173	$1000.00	$584.39
92004 New patient complete exam of visual system	170	170	$158.59	$143.83
92134 Imaging of retina	167	162	$100.00	$38.40
92014 Established patient complete exam of visual system	115	115	$129.91	$120.59
66821 Removal of recurring cataract in lens capsule using a laser	99	84	$400.00	$299.04
92002 New patient problem focused exam of visual system	84	84	$99.40	$80.02
92082 Exam of visual field with intermediate testing	71	70	$75.00	$43.34
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	44	41	$68.64	$42.81
76514 Ultrasound scan of cornea to determine thickness	41	41	$100.00	$11.39
92060 Exam to measure eye deviation and range of motion	36	33	$75.00	$59.14
66982 Complex removal of cataract with insertion of prosthetic lens	33	26	$1200.00	$746.39
92020 Examination of cornea and iris using lens device and slit lamp	23	23	$50.00	$26.59
67840 Removal of eyelid growth	15	15	$350.67	$264.28
67904 Repair of tendon of upper eyelid	12	12	$1000.00	$867.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	777	622	$99.20	$69.75
92250 Photography of the retina	706	693	$94.67	$51.85
92012 Established patient problem focused exam of visual system	694	671	$89.87	$83.16
92083 Exam of visual field with extended testing	494	446	$99.44	$60.26
92133 Imaging of optic nerve	340	334	$100.00	$33.45
66984 Removal of cataract with insertion of lens	279	171	$1000.00	$576.88
92136 Measurement of corneal curvature and depth of eye	218	142	$79.36	$55.45
92134 Imaging of retina	164	161	$100.00	$38.68
92082 Exam of visual field with intermediate testing	164	158	$75.00	$43.58
92004 New patient complete exam of visual system	160	160	$158.75	$143.20
66821 Removal of recurring cataract in lens capsule using a laser	145	109	$400.00	$298.53
92014 Established patient complete exam of visual system	129	127	$128.91	$119.78
76519 Ultrasound of eye for determination of lens power	86	58	$78.49	$53.19
92002 New patient problem focused exam of visual system	73	73	$100.00	$79.69
76514 Ultrasound scan of cornea to determine thickness	44	44	$101.70	$13.85
92060 Exam to measure eye deviation and range of motion	37	35	$75.00	$59.40
92020 Examination of cornea and iris using lens device and slit lamp	36	36	$50.00	$25.91
66982 Complex removal of cataract with insertion of prosthetic lens	29	20	$1200.00	$749.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	28	27	$68.93	$41.85
67840 Removal of eyelid growth	25	25	$350.00	$265.67
67904 Repair of tendon of upper eyelid	21	21	$1000.00	$799.84
65855 Laser repair to improve eye fluid flow	20	15	$400.00	$236.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	787	648	$99.10	$69.42
92250 Photography of the retina	779	756	$94.62	$60.84
92012 Established patient problem focused exam of visual system	604	582	$89.81	$80.66
92083 Exam of visual field with extended testing	557	494	$99.51	$56.94
66984 Removal of cataract with insertion of lens	336	214	$1000.00	$579.36
92133 Imaging of optic nerve	321	317	$100.06	$32.78
92004 New patient complete exam of visual system	237	237	$158.99	$140.77
76519 Ultrasound of eye for determination of lens power	213	152	$79.34	$58.09
92136 Measurement of corneal curvature and depth of eye	174	126	$85.06	$66.87
92082 Exam of visual field with intermediate testing	138	131	$75.00	$43.43
92014 Established patient complete exam of visual system	118	117	$129.36	$117.00
66821 Removal of recurring cataract in lens capsule using a laser	112	88	$400.00	$296.22
92134 Imaging of retina	103	103	$100.00	$38.03
92002 New patient problem focused exam of visual system	85	85	$98.82	$76.98
76514 Ultrasound scan of cornea to determine thickness	80	80	$101.88	$13.53
92020 Examination of cornea and iris using lens device and slit lamp	65	65	$50.00	$25.76
65855 Laser repair to improve eye fluid flow	39	25	$401.28	$233.67
92060 Exam to measure eye deviation and range of motion	34	32	$75.00	$57.44
66982 Complex removal of cataract with insertion of prosthetic lens	32	25	$1200.00	$686.16
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	23	$70.00	$41.49
67840 Removal of eyelid growth	21	21	$350.00	$258.10
67904 Repair of tendon of upper eyelid	12	12	$1083.33	$718.38
68200 Injection into conjunctiva	12	12	$60.42	$32.98

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License OH 35052070

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

0600504 (OH)

Hospital & Practice Group Affiliations

Cei Physicians Psc, Llc

1945 Cei Dr, Blue Ash, OH 452425664

Phone: 51398451333741

Practice Associates & Co-Workers

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

5 Associated Practitioners

Kristine Nachbor

Ophthalmology

NPI 1053040915

Dr. Kathleen Petro , MD

Ophthalmology

NPI 1265814537

Doctor of Medicine (M.D.)

Dr. Samuel Salamon , MD

Specialist

NPI 1275520322

Doctor of Medicine (M.D.)

Dr. Jack Peretz , MD

Specialist

NPI 1275520330

Doctor of Medicine (M.D.)

Dr. Tamar Shafran , MD

Ophthalmology

NPI 1306167135

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active February 09, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location February 09, 2010

Registered at 26300 EUCLID AVE, SUITE 312, EUCLID, OH 441323708 (Tel: 2165748900)

📍

Updated Business Mailing Address February 09, 2010

Registered at 26300 EUCLID AVE, SUITE 312, EUCLID, OH 441323708 (Tel: 2165748900)

👤

Provider Name / Credentials Updated February 09, 2010

Recorded as GREGORY LOUIS, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 09, 2010

Specialist (License #35052070 in OH)

🟢

Initial NPI Registration & Enumeration October 04, 2005

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: 1346237344

Entity Type:

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

Enumeration Date: October 04, 2005

Last Update: February 09, 2010

Sole Proprietor: No

Update or Correct Profile

Mailing Address

26300 Euclid Ave, Suite 312

Euclid, OH 441323708

Phone: 2165748900

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.