Active NPI 1134307978 Individual Practitioner Male Practitioner

Dr. Gregory W Walker , DO

Surgery - Vascular Surgery • Toledo, OH

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Walker, DO is a certified Surgery - Vascular Surgery practicing in Toledo, OH. With approximately 25 years of clinical experience since completing medical education in 2001, Dr. Walker delivers high-quality medical care to the local community at 2109 HUGHES DR STE 450.

Dr. Walker is affiliated with Promedica Multi Specialty Physicians and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, ultrasound of both sides of head and neck blood flow, ultrasound study of arm or leg veins with compression and maneuvers. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2109 Hughes Dr Ste 450

Toledo, OH 43606

Telephone 4192513112

Fax 4194796977

Associated Practice Facility / Clinic

🏢 Vascular Professionals, Inc. Facility NPI 1811040223

Medicare Profile & Education

Medical School

Other

Graduation Year

2001

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery - Vascular Surgery in Toledo, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

25 Yrs -0.6 yrs vs City Avg

City Avg: 25.6 Yrs

State Avg: 24.7 Yrs

Regional Practice Density

25 Specialists

Practicing in Toledo, OH (250 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

64.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (25 Years) 25 Yrs

Toledo Specialty Average (25.6 Years) 25.6 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	285	248	$127.00	$88.21
93880 Ultrasound of both sides of head and neck blood flow	241	240	$102.65	$37.20
93970 Ultrasound study of arm or leg veins with compression and maneuvers	195	191	$112.00	$32.28
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	126	122	$76.00	$20.67
93923 Complete ultrasound study of arm and leg arteries	104	99	$75.00	$21.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	87	87	$167.00	$108.84
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	79	65	$79.00	$54.62
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	41	41	$110.00	$37.03
93925 Ultrasound of leg arteries or artery grafts	39	38	$95.00	$37.06
93922 Ultrasound study of arm and leg arteries	38	38	$32.00	$11.69
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	24	20	$127.00	$77.75
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	23	20	$25.00	$12.01
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$315.00	$164.50
93926 Ultrasound of one leg arteries or artery grafts	22	22	$64.00	$22.80
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$177.00	$81.67
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	18	14	$494.00	$232.86
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	17	17	$292.00	$54.06
93923 Complete ultrasound study of arm and leg arteries	14	14	$75.00	$21.23
35301 Removal of blood clot and portion of artery of neck	14	14	$3853.00	$1107.29
75630 Review by radiologist of abdominal aorta and both leg arteries image	13	12	$289.00	$92.14
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$239.00	$128.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	206	187	$112.00	$86.84
93880 Ultrasound of both sides of head and neck blood flow	136	136	$100.00	$37.76
93970 Ultrasound study of arm or leg veins with compression and maneuvers	131	127	$112.00	$32.35
93923 Complete ultrasound study of arm and leg arteries	71	69	$75.00	$21.48
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	71	57	$75.00	$54.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	64	64	$167.00	$103.81
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	55	54	$76.00	$21.07
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	36	30	$127.00	$77.85
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	29	28	$110.00	$37.59
93922 Ultrasound study of arm and leg arteries	23	23	$27.00	$12.11
93880 Ultrasound of both sides of head and neck blood flow	22	22	$100.00	$37.76
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	21	21	$25.00	$12.42
93925 Ultrasound of leg arteries or artery grafts	18	18	$95.00	$36.78
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	15	15	$292.00	$54.78
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$177.00	$82.00
93926 Ultrasound of one leg arteries or artery grafts	14	14	$64.00	$22.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$165.00	$123.80
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	13	11	$494.00	$234.19
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	12	12	$76.00	$21.07
36901 Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretation	12	11	$342.00	$157.86
93970 Ultrasound study of arm or leg veins with compression and maneuvers	11	11	$112.00	$30.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$315.00	$161.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	217	189	$112.00	$88.49
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$167.00	$108.94
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	53	44	$74.81	$54.81
93880 Ultrasound of both sides of head and neck blood flow	42	42	$100.00	$38.90
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	38	30	$127.00	$70.26
93970 Ultrasound study of arm or leg veins with compression and maneuvers	37	36	$112.00	$33.82
99221 Initial hospital inpatient care per day, typically 30 minutes	27	27	$177.00	$96.52
93923 Complete ultrasound study of arm and leg arteries	21	21	$75.00	$22.30
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	21	18	$25.00	$12.76
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	15	15	$76.00	$21.50
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	15	12	$494.00	$228.36
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	14	14	$494.00	$239.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	11	$165.00	$125.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$315.00	$164.33
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	11	11	$110.00	$38.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	250	226	$112.00	$89.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	80	62	$75.00	$54.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	46	46	$186.63	$110.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	33	25	$127.00	$71.34
76937 Ultrasonic guidance for blood vessel access	26	25	$39.00	$13.53
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	24	19	$494.00	$243.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$315.00	$155.33
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$165.00	$124.30
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	17	16	$25.00	$11.91
36901 Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretation	16	14	$342.00	$165.73
99221 Initial hospital inpatient care per day, typically 30 minutes	16	16	$177.00	$100.70
75630 Review by radiologist of abdominal aorta and both leg arteries image	14	14	$289.00	$91.49
36821 Relocation of arm vein with connection to arm artery, open procedure	14	13	$1557.00	$678.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	254	225	$112.00	$73.01
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	68	59	$75.00	$44.10
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	51	37	$127.00	$72.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$210.00	$106.11
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	34	24	$494.00	$249.01
99221 Initial hospital inpatient care per day, typically 30 minutes	28	28	$177.00	$102.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$315.00	$161.85
76937 Ultrasonic guidance for blood vessel access	21	19	$39.00	$13.55
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$165.00	$106.70
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	16	15	$25.00	$12.45
99442 Telephone medical discussion with physician, 11-20 minutes	11	11	$147.00	$73.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	331	284	$104.57	$70.24
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	100	58	$123.85	$69.81
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	85	67	$71.82	$42.85
99221 Initial hospital inpatient care per day, typically 30 minutes	61	60	$171.49	$99.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	51	51	$197.25	$103.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$264.25	$158.49
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	38	31	$25.32	$12.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	29	28	$144.59	$104.60
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	28	21	$539.71	$243.35
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	23	21	$3628.00	$1190.31
76937 Ultrasonic guidance for blood vessel access	22	20	$39.00	$14.28
36821 Relocation of arm vein with connection to arm artery, open procedure	17	16	$1557.00	$644.42
J2250 Injection, midazolam hydrochloride, per 1 mg	14	12	$3.00	$0.13
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$229.31	$133.86
J3010 Injection, fentanyl citrate, 0.1 mg	13	12	$3.00	$0.79
35301 Removal of blood clot and portion of artery of neck	13	12	$3853.00	$1143.94
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$338.09	$197.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	329	270	$92.00	$68.69
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	106	86	$65.00	$41.62
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	90	52	$118.00	$71.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	66	66	$145.00	$103.21
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	62	50	$3543.00	$1154.95
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$199.00	$158.99
J2250 Injection, midazolam hydrochloride, per 1 mg	43	34	$3.00	$0.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	41	41	$128.00	$102.26
99221 Initial hospital inpatient care per day, typically 30 minutes	38	38	$161.00	$99.46
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	38	18	$31.00	$10.11
J3010 Injection, fentanyl citrate, 0.1 mg	35	33	$3.00	$0.55
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	34	32	$146.97	$48.28
36901 Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretation	25	21	$1712.00	$551.64
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	18	18	$498.00	$164.02
36821 Relocation of arm vein with connection to arm artery, open procedure	17	14	$1557.00	$671.37
36832 Revision of dialysis graft, open procedure	16	15	$2480.00	$730.98
36830 Connection of tube graft to vein and artery for dialysis	16	15	$2538.00	$653.02
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$218.00	$134.04
76937 Ultrasonic guidance for blood vessel access	15	14	$39.00	$14.26
75630 Review by radiologist of abdominal aorta and both leg arteries image	15	14	$289.00	$76.81
37607 Tying or banding of a passage between an artery and vein	15	15	$760.00	$314.11
35301 Removal of blood clot and portion of artery of neck	12	12	$3853.00	$1148.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	411	334	$96.60	$69.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	126	126	$148.43	$102.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	107	80	$65.81	$41.28
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist	66	55	$3445.00	$1129.81
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	65	46	$118.00	$70.43
J2250 Injection, midazolam hydrochloride, per 1 mg	40	33	$3.00	$0.12
J3010 Injection, fentanyl citrate, 0.1 mg	39	34	$3.00	$0.47
99221 Initial hospital inpatient care per day, typically 30 minutes	35	34	$161.00	$99.15
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	33	29	$146.00	$47.79
36901 Insertion of needle and/or catheter into dialysis circuit, with imaging including radiological supervision and interpretation	30	26	$1628.00	$525.15
36200 Insertion of catheter into aorta	20	19	$2305.80	$104.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$201.35	$152.18
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes	19	12	$31.00	$10.08
36589 Removal of central venous catheter for infusion	15	15	$486.00	$143.61
36818 Relocation of arm vein with connection to arm artery, open procedure	12	12	$1406.00	$693.68

Medical Specialties & State Licenses

Surgery - Vascular Surgery Primary Specialty

NUCC Taxonomy Code: 2086S0129X

State License OH 34.008756

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Hospital & Practice Group Affiliations

Promedica Multi Specialty Physicians

777 Kimole Ln, Adrian, MI 492211400

Phone: 5172650292

Promedica Multi Specialty Physicians

2109 Hughes Dr, Toledo, OH 436063858

Phone: 4192912003

Secondary Practice Locations

5700 Monroe St Unit 309

Sylvania, OH 435602768

Phone: 4192912090

81 Ashwood Dr

Tiffin, OH 448832546

Phone: 4192912003

960 W Wooster St Ste 110

Bowling Green, OH 434022646

Phone: 4192912003

Practice Associates & Co-Workers

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

20 Associated Practitioners

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NPI 1013231562

Doctor of Medicine (M.D.)

Dr. Todd Russell , MD

Surgery - Vascular Surgery

NPI 1043219496

Doctor of Medicine (M.D.)

Dr. Chompunut Asava Aree , MD

Surgery - Vascular Surgery

NPI 1104113059

Doctor of Medicine (M.D.)

Dr. Brett Aplin , MD

Surgery - Vascular Surgery

NPI 1215164959

Doctor of Medicine (M.D.)

Dr. Kate Gates , DO

Surgery - Vascular Surgery

NPI 1225452956

Doctor of Osteopathic Medicine (D.O.)

Dr. Jihad Abbas , MD

Surgery - Vascular Surgery

NPI 1245234129

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location August 07, 2018

Registered at 2109 HUGHES DR STE 450, TOLEDO, OH 43606 (Tel: 4192513112)

📍

Updated Business Mailing Address August 07, 2018

Registered at 2109 HUGHES DR STE 450, TOLEDO, OH 436065102 (Tel: 4192513112)

✅

NPI Profile Active February 04, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location February 04, 2008

Registered at 2213 CHERRY ST, STE #303, TOLEDO, OH 436082603 (Tel: 4192513112)

📍

Updated Business Mailing Address February 04, 2008

Registered at 2213 CHERRY ST, STE #303, TOLEDO, OH 436082603 (Tel: 4192513112)

👤

Provider Name / Credentials Updated February 04, 2008

Recorded as GREGORY WALKER, D.O.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 04, 2008

Surgery (License #34.008756 in OH)

🟢

Initial NPI Registration & Enumeration February 04, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1134307978

Entity Type:

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

Enumeration Date: February 04, 2008

Last Update: November 03, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2109 Hughes Dr Ste 450

Toledo, OH 436065102

Phone: 4192513112

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.