Active NPI 1396059754 Individual Practitioner Male Practitioner

Jon Onosaki , PA-C

Physician Assistant • Orange, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Jon Onosaki, PA-C is a certified Physician Assistant practicing in Orange, CA. With approximately 19 years of clinical experience since completing medical education in 2007, Jon Onosaki delivers high-quality medical care to the local community at 280 S MAIN ST STE 200.

Jon Onosaki is affiliated with Providence Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg, established patient outpatient office visit, aspiration and/or injection of fluid large joint using ultrasound guidance. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

280 S Main St Ste 200

Orange, CA 928683852

Telephone 7146344567

Associated Practice Facility / Clinic

🏢 Orthopaedic Specialty Institute Medical Group Of Orange County Facility NPI 1336228832

Medicare Profile & Education

Medical School

Other

Graduation Year

2007

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Orange, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

19 Yrs +10.0 yrs vs City Avg

City Avg: 9.0 Yrs

State Avg: 11.5 Yrs

Regional Practice Density

181 Specialists

Practicing in Orange, CA (14617 Statewide)

Telehealth Adoption Rate

16.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

73.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Onosaki (19 Years) 19 Yrs

Orange Specialty Average (9.0 Years) 9.0 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
J7329 Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg	3,875	35	$20.14	$6.48
99213 Established patient office or other outpatient visit, typically 15 minutes	141	91	$271.00	$83.74
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	135	43	$325.56	$100.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	73	29	$170.00	$52.33
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	52	12	$19.00	$6.93
27447 Replacement of knee joint, both sides of knee	21	21	$760.53	$182.59
27130 Replacement of thigh bone and hip joint with prosthesis	17	17	$766.53	$182.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	12	$381.00	$117.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7329 Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg	1,875	19	$40.88	$8.60
99213 Established patient office or other outpatient visit, typically 15 minutes	140	90	$245.00	$85.09
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	102	24	$30.00	$6.60
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	63	28	$303.37	$105.44
20610 Aspiration and/or injection of fluid from large joint	28	17	$195.96	$67.79
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	11	$154.00	$53.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	16	$345.00	$120.02
27130 Replacement of thigh bone and hip joint with prosthesis	15	15	$694.21	$189.08
27447 Replacement of knee joint, both sides of knee	12	12	$713.79	$192.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7329 Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg	1,025	16	$42.00	$16.69
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	151	33	$30.00	$6.53
99213 Established patient office or other outpatient visit, typically 15 minutes	140	81	$245.00	$85.53
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	69	31	$275.00	$95.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	39	20	$154.00	$54.12
20610 Aspiration and/or injection of fluid from large joint	30	23	$179.95	$63.09
27447 Replacement of knee joint, both sides of knee	16	16	$692.55	$191.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$302.00	$106.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	36	24	$132.00	$86.52
27447 Replacement of knee joint, both sides of knee	29	29	$1091.73	$195.54
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	28	12	$30.00	$7.25
27130 Replacement of thigh bone and hip joint with prosthesis	18	18	$988.67	$192.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$197.00	$106.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
27447 Replacement of knee joint, both sides of knee	31	31	$1199.25	$203.68
27130 Replacement of thigh bone and hip joint with prosthesis	21	21	$1112.25	$204.40
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	13	13	$520.54	$25.93
29827 Repair of shoulder rotator cuff using an endoscope	12	12	$799.50	$161.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
23472 Prosthetic repair of shoulder joint, total shoulder	74	72	$884.00	$215.83
73030 X-ray of shoulder, minimum of 2 views	73	60	$97.00	$29.35
29823 Removal of extensive shoulder joint tissue using an endoscope	48	48	$370.00	$28.63
99213 Established patient office or other outpatient visit, typically 15 minutes	42	39	$207.00	$69.76
29827 Repair of shoulder rotator cuff using an endoscope	41	41	$637.00	$158.73
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	28	28	$394.00	$25.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	23	$310.00	$101.89
29828 Release of shoulder biceps tendon using an endoscope	18	18	$538.00	$68.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$310.00	$101.31
23020 Release of tendon of shoulder joint	17	17	$404.00	$51.59
23107 Exploration of shoulder joint	13	13	$387.00	$49.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
23472 Prosthetic repair of shoulder joint, total shoulder	63	63	$884.00	$219.40
73030 X-ray of shoulder, minimum of 2 views	61	54	$97.00	$28.12
99213 Established patient office or other outpatient visit, typically 15 minutes	47	41	$207.00	$68.25
29823 Removal of extensive shoulder joint tissue using an endoscope	34	34	$370.00	$32.41
29827 Repair of shoulder rotator cuff using an endoscope	30	30	$637.00	$156.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	21	$310.00	$100.53
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	16	16	$394.00	$25.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	59	51	$97.00	$28.40
99213 Established patient office or other outpatient visit, typically 15 minutes	59	54	$207.00	$68.68
23472 Prosthetic repair of shoulder joint, total shoulder	53	51	$884.00	$216.90
29823 Removal of extensive shoulder joint tissue using an endoscope	38	36	$370.00	$33.92
29827 Repair of shoulder rotator cuff using an endoscope	33	32	$637.00	$158.97
23020 Release of tendon of shoulder joint	21	20	$404.00	$54.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$310.00	$100.67
29828 Release of shoulder biceps tendon using an endoscope	13	13	$538.00	$70.88
23107 Exploration of shoulder joint	12	12	$387.00	$53.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$310.00	$101.43
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	11	11	$394.00	$25.95

Medical Specialties & State Licenses

CMS Verified: 2021-11-09

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CA PA19725

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Providence Medical Foundation

4300 Rose Dr, Yorba Linda, CA 928862026

Phone: 7145776601

Providence Medical Foundation

1950 Sunny Crest Dr, Fullerton, CA 928353641

Phone: 7149925350

Secondary Practice Locations

4300 Rose Dr

Yorba Linda, CA 928862026

Phone: 7145776880

Practice Associates & Co-Workers

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

40 Associated Practitioners

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Dr. Pablo Prietto , MD

Orthopaedic Surgery

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Doctor of Medicine (M.D.)

Dr. Joseph Koressel , MD

Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery

NPI 1083118616

Doctor of Medicine (M.D.)

Dr. Mark Halikis , MD

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NPI 1114914397

Doctor of Medicine (M.D.)

Dr. Jeffrey Deckey , MD

Orthopaedic Surgery - Orthopaedic Surgery of the Spine

NPI 1124015235

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 July 27, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location July 27, 2010

Registered at 280 S MAIN ST STE 200, ORANGE, CA 928683852 (Tel: 7146344567)

📍

Updated Business Mailing Address July 27, 2010

Registered at 280 S MAIN ST STE 200, ORANGE, CA 928683852

👤

Provider Name / Credentials Updated July 27, 2010

Recorded as JON ONOSAKI, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 27, 2010

Physician Assistant (License #PA19725 in CA)

🟢

Initial NPI Registration & Enumeration July 27, 2010

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: 1396059754

Entity Type:

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

Enumeration Date: July 27, 2010

Last Update: November 09, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

280 S Main St Ste 200

Orange, CA 928683852

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.