Active NPI 1700999620 Individual Practitioner Male Practitioner

Dr. C Keith Ozaki , MD

Surgery - Vascular Surgery • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. C Ozaki, MD is a certified Surgery - Vascular Surgery practicing in Boston, MA. With approximately 38 years of clinical experience since graduating from Duke University School Of Medicine in 1988, Dr. Ozaki delivers high-quality medical care to the local community at 75 FRANCIS ST.

Dr. Ozaki is affiliated with Brigham And Womens Physicians Organization Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include ultrasound study of arm or leg veins with compression and maneuvers, ultrasound of both sides of head and neck blood flow, ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

75 Francis St

Boston, MA 021156110

Telephone 8573071920

Associated Practice Facility / Clinic

🏢 Brigham And Women's Hospital, Inc. Facility NPI 1972577799

Medicare Profile & Education

Medical School

Duke University School Of Medicine

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery - Vascular Surgery in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +17.0 yrs vs City Avg

City Avg: 21.0 Yrs

State Avg: 27.9 Yrs

Regional Practice Density

53 Specialists

Practicing in Boston, MA (169 Statewide)

Telehealth Adoption Rate

47.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ozaki (38 Years) 38 Yrs

Boston Specialty Average (21.0 Years) 21.0 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
93970 Ultrasound study of arm or leg veins with compression and maneuvers	130	127	$198.00	$33.63
93880 Ultrasound of both sides of head and neck blood flow	84	82	$234.00	$38.79
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	78	77	$134.00	$21.53
99213 Established patient office or other outpatient visit, typically 15 minutes	62	54	$393.31	$97.88
93923 Complete ultrasound study of arm and leg arteries	48	47	$128.00	$21.93
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	46	46	$508.61	$120.10
93880 Ultrasound of both sides of head and neck blood flow	44	44	$234.00	$38.72
93926 Ultrasound of one leg arteries or artery grafts	37	31	$146.00	$23.33
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	32	31	$134.00	$21.59
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	23	$545.40	$134.46
93925 Ultrasound of leg arteries or artery grafts	23	20	$233.00	$38.39
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	19	$247.70	$61.41
36832 Revision of dialysis graft, open procedure	19	19	$3091.74	$751.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$551.89	$137.86
36821 Relocation of arm vein with connection to arm artery, open procedure	18	18	$2729.33	$660.21
93970 Ultrasound study of arm or leg veins with compression and maneuvers	16	16	$198.00	$33.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	139	131	$198.00	$34.80
93880 Ultrasound of both sides of head and neck blood flow	108	104	$234.00	$40.33
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	89	88	$134.00	$22.45
99213 Established patient office or other outpatient visit, typically 15 minutes	83	77	$386.73	$99.44
93923 Complete ultrasound study of arm and leg arteries	69	68	$128.00	$22.66
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	64	64	$509.75	$123.15
99221 Initial hospital inpatient care per day, typically 30 minutes	37	37	$407.00	$88.02
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	36	36	$134.00	$22.48
93926 Ultrasound of one leg arteries or artery grafts	36	33	$146.00	$23.80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	36	32	$548.67	$138.18
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	35	34	$243.43	$63.04
36821 Relocation of arm vein with connection to arm artery, open procedure	32	31	$2670.75	$678.10
93880 Ultrasound of both sides of head and neck blood flow	32	32	$234.00	$40.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	27	$542.33	$136.44
36832 Revision of dialysis graft, open procedure	25	25	$3051.40	$774.88
93925 Ultrasound of leg arteries or artery grafts	20	19	$233.00	$39.27
93970 Ultrasound study of arm or leg veins with compression and maneuvers	17	17	$198.00	$34.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	133	129	$198.00	$36.27
93880 Ultrasound of both sides of head and neck blood flow	91	90	$234.00	$41.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	77	70	$792.12	$212.12
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	72	68	$134.00	$23.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	55	51	$530.44	$141.72
99213 Established patient office or other outpatient visit, typically 15 minutes	48	45	$380.00	$101.13
93926 Ultrasound of one leg arteries or artery grafts	46	39	$146.00	$24.81
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	45	45	$476.00	$122.77
93923 Complete ultrasound study of arm and leg arteries	38	37	$128.00	$23.55
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	31	31	$134.00	$23.13
93880 Ultrasound of both sides of head and neck blood flow	30	30	$234.00	$41.69
36821 Relocation of arm vein with connection to arm artery, open procedure	28	27	$2731.25	$698.50
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	23	$235.25	$63.81
37607 Tying or banding of a passage between an artery and vein	22	22	$1492.18	$393.14
93925 Ultrasound of leg arteries or artery grafts	20	19	$233.00	$41.08
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$720.90	$185.64
36832 Revision of dialysis graft, open procedure	20	20	$3116.00	$775.72
93970 Ultrasound study of arm or leg veins with compression and maneuvers	14	14	$198.00	$36.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	147	144	$198.00	$36.33
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	109	95	$478.39	$144.73
93880 Ultrasound of both sides of head and neck blood flow	93	87	$234.00	$41.39
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	88	78	$817.23	$216.68
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	80	79	$134.00	$23.52
93923 Complete ultrasound study of arm and leg arteries	78	75	$129.49	$23.40
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$691.45	$185.01
93926 Ultrasound of one leg arteries or artery grafts	45	37	$146.00	$25.23
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	36	35	$134.00	$23.52
36821 Relocation of arm vein with connection to arm artery, open procedure	35	35	$2752.00	$692.57
93925 Ultrasound of leg arteries or artery grafts	34	32	$233.00	$41.25
36832 Revision of dialysis graft, open procedure	32	31	$3181.95	$792.70
93880 Ultrasound of both sides of head and neck blood flow	31	31	$234.00	$41.96
99213 Established patient office or other outpatient visit, typically 15 minutes	26	25	$328.85	$102.99
37607 Tying or banding of a passage between an artery and vein	21	21	$1550.00	$384.66
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$453.00	$126.36
93970 Ultrasound study of arm or leg veins with compression and maneuvers	18	18	$198.00	$36.33
28825 Amputation of toe at toe joint	15	12	$1563.00	$175.25
93923 Complete ultrasound study of arm and leg arteries	12	12	$129.50	$23.40
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$556.27	$147.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	112	110	$198.00	$37.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	106	93	$448.46	$120.98
93880 Ultrasound of both sides of head and neck blood flow	81	79	$234.00	$43.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	73	68	$810.79	$220.81
36832 Revision of dialysis graft, open procedure	55	54	$3106.00	$808.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$674.78	$183.36
93926 Ultrasound of one leg arteries or artery grafts	49	42	$146.00	$26.43
93923 Complete ultrasound study of arm and leg arteries	45	42	$130.00	$24.13
99213 Established patient office or other outpatient visit, typically 15 minutes	45	42	$306.11	$84.53
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	45	45	$134.00	$24.27
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	38	37	$547.74	$149.65
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$445.67	$120.59
36821 Relocation of arm vein with connection to arm artery, open procedure	26	26	$2729.38	$737.52
93925 Ultrasound of leg arteries or artery grafts	22	20	$233.00	$42.73
36833 Revision of dialysis graft with removal of blood cot, open procedure	15	14	$3340.67	$864.06
93880 Ultrasound of both sides of head and neck blood flow	15	15	$234.00	$43.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	147	144	$198.00	$37.11
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	111	92	$540.66	$147.01
99213 Established patient office or other outpatient visit, typically 15 minutes	101	89	$296.92	$82.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	94	78	$435.82	$119.87
93880 Ultrasound of both sides of head and neck blood flow	84	81	$234.00	$43.28
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	69	69	$134.00	$24.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$438.41	$119.68
93923 Complete ultrasound study of arm and leg arteries	59	57	$130.00	$23.81
93926 Ultrasound of one leg arteries or artery grafts	43	39	$146.00	$26.08
36832 Revision of dialysis graft, open procedure	37	36	$3050.81	$796.68
37607 Tying or banding of a passage between an artery and vein	37	34	$1513.59	$392.37
36821 Relocation of arm vein with connection to arm artery, open procedure	34	33	$2678.68	$723.91
93925 Ultrasound of leg arteries or artery grafts	31	29	$233.00	$42.50
28820 Amputation of toe at joint between the forefoot and toes	23	19	$1625.87	$394.77
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$661.00	$180.24
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$802.21	$208.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	124	123	$198.00	$37.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	107	92	$527.49	$147.26
93880 Ultrasound of both sides of head and neck blood flow	88	87	$234.00	$43.24
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	84	83	$134.00	$24.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	74	67	$426.08	$115.71
99213 Established patient office or other outpatient visit, typically 15 minutes	67	56	$292.46	$80.17
93923 Complete ultrasound study of arm and leg arteries	50	49	$130.00	$23.79
37607 Tying or banding of a passage between an artery and vein	47	45	$1477.00	$397.90
93926 Ultrasound of one leg arteries or artery grafts	46	38	$146.00	$26.05
36821 Relocation of arm vein with connection to arm artery, open procedure	34	33	$2585.53	$724.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$430.03	$119.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$646.17	$174.63
93925 Ultrasound of leg arteries or artery grafts	19	18	$233.00	$42.80
36832 Revision of dialysis graft, open procedure	17	16	$2960.12	$796.33
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	14	$176.35	$49.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	152	150	$198.00	$36.64
93880 Ultrasound of both sides of head and neck blood flow	103	100	$209.37	$42.25
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	95	83	$513.18	$141.08
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	84	82	$134.00	$23.40
93923 Complete ultrasound study of arm and leg arteries	78	73	$130.00	$23.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	77	66	$416.34	$114.06
36832 Revision of dialysis graft, open procedure	56	52	$2868.77	$756.19
93926 Ultrasound of one leg arteries or artery grafts	43	39	$146.00	$25.44
36821 Relocation of arm vein with connection to arm artery, open procedure	32	32	$2508.50	$648.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$633.39	$176.68
99213 Established patient office or other outpatient visit, typically 15 minutes	26	26	$282.42	$77.36
93925 Ultrasound of leg arteries or artery grafts	24	22	$233.00	$41.55
99221 Initial hospital inpatient care per day, typically 30 minutes	18	17	$373.89	$106.56
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$760.00	$213.80
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$416.67	$117.21

Medical Specialties & State Licenses

Surgery - Vascular Surgery Primary Specialty

NUCC Taxonomy Code: 2086S0129X

State License FL ME73442

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

Surgery - Vascular Surgery

NUCC Taxonomy Code: 2086S0129X

State License MA 75107

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

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

252110500 (FL)

Hospital & Practice Group Affiliations

Brigham And Womens Physicians Organization Inc

75 Francis St, Boston, MA 021156110

Phone: 6177325500

Practice Associates & Co-Workers

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

7 Associated Practitioners

Karthik Thangappan

Student in an Organized Health Care Education/Training Program

NPI 1093249203

Dr. Mohamad Hussain , MD, PhD

Surgery - Vascular Surgery

NPI 1174158109

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Nicole Meregian , PA-C

Physician Assistant

NPI 1578668778

Physician Assistant (Certified)

Dr. Nicholas Swerdlow , MD

Surgery - Vascular Surgery

NPI 1639597263

Doctor of Medicine (M.D.)

Kristin Maurer , PA

Physician Assistant

NPI 1699730242

Physician Assistant

Dr. Michael Belkin , MD

Surgery - Vascular Surgery

NPI 1922064260

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 June 21, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location June 21, 2012

Registered at 75 FRANCIS ST, BOSTON, MA 021156110 (Tel: 8573071920)

📍

Updated Business Mailing Address June 21, 2012

Registered at 111 CYPRESS ST, BROOKLINE, MA 024456002

👤

Provider Name / Credentials Updated June 21, 2012

Recorded as C OZAKI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 21, 2012

Surgery (License #ME73442 in FL)

🟢

Initial NPI Registration & Enumeration August 16, 2006

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: 1700999620

Entity Type:

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

Enumeration Date: August 16, 2006

Last Update: June 21, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

111 Cypress St

Brookline, MA 024456002

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.