Active NPI 1164942116 Individual Practitioner Male Practitioner

Mark Jason Diaz , PA-C, MS, MPH

Physician Assistant • Davis, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Mark Diaz, PA-C, MS, MPH is a certified Physician Assistant practicing in Davis, CA. With approximately 9 years of clinical experience since completing medical education in 2017, Mark Diaz delivers high-quality medical care to the local community at 2020 SUTTER PL STE 104.

Mark Diaz is affiliated with Permanente Medical Group Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include injection, bupivicaine, not otherwise specified, 0.5 mg, injection, methylprednisolone acetate, 1 mg, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2020 Sutter Pl Ste 104

Davis, CA 956166217

Telephone 5307505900

Medicare Profile & Education

Medical School

Other

Graduation Year

2017

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Davis, CA

Experienced Practitioner (5-10 Yrs)

Practitioner Clinical Experience

9 Yrs -4.1 yrs vs City Avg

City Avg: 13.1 Yrs

State Avg: 11.5 Yrs

Regional Practice Density

15 Specialists

Practicing in Davis, CA (14617 Statewide)

Telehealth Adoption Rate

20.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

70.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Diaz (9 Years) 9 Yrs

Davis Specialty Average (13.1 Years) 13.1 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
J0665 Injection, bupivicaine, not otherwise specified, 0.5 mg	2,530	24	$0.05	$0.01
J1010 Injection, methylprednisolone acetate, 1 mg	1,000	20	$0.70	$0.13
99213 Established patient office or other outpatient visit, typically 15 minutes	84	59	$243.00	$81.69
20610 Aspiration and/or injection of fluid from large joint	62	42	$254.42	$61.51
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$358.00	$99.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	15	$357.00	$115.07
J1030 Injection, methylprednisolone acetate, 40 mg	16	15	$22.00	$6.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0665 Injection, bupivicaine, not otherwise specified, 0.5 mg	2,410	22	$0.05	$0.02
99213 Established patient office or other outpatient visit, typically 15 minutes	177	111	$234.00	$81.48
20610 Aspiration and/or injection of fluid from large joint	94	59	$244.98	$62.32
J1030 Injection, methylprednisolone acetate, 40 mg	67	55	$22.00	$7.42
J1885 Injection, ketorolac tromethamine, per 15 mg	64	26	$3.94	$0.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$344.00	$98.63
27447 Replacement of knee joint, both sides of knee	28	25	$789.07	$180.88
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	16	$343.00	$115.63
27130 Replacement of thigh bone and hip joint with prosthesis	14	14	$748.27	$181.09
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	14	14	$101.46	$23.81
20985 Computer-assisted surgery for muscle and bone procedure	14	14	$77.93	$19.99
29823 Removal of extensive shoulder joint tissue using an endoscope	13	13	$331.43	$21.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	227	142	$227.00	$80.16
20610 Aspiration and/or injection of fluid from large joint	98	67	$234.68	$62.56
J1030 Injection, methylprednisolone acetate, 40 mg	82	61	$22.00	$6.31
J1885 Injection, ketorolac tromethamine, per 15 mg	64	27	$3.86	$0.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$334.00	$100.12
27447 Replacement of knee joint, both sides of knee	23	22	$771.24	$180.45
29823 Removal of extensive shoulder joint tissue using an endoscope	20	20	$317.15	$18.70
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	19	19	$99.42	$23.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	17	$333.00	$110.92
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	16	14	$84.00	$13.06
29827 Repair of shoulder rotator cuff using an endoscope	16	16	$563.45	$151.31
27130 Replacement of thigh bone and hip joint with prosthesis	15	15	$716.04	$180.25
23430 Anchoring of biceps tendon	15	15	$395.90	$56.58
20985 Computer-assisted surgery for muscle and bone procedure	15	15	$75.48	$20.10
29824 Partial removal of collar bone at shoulder using an endoscope	13	13	$342.58	$44.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	172	115	$220.00	$81.89
20610 Aspiration and/or injection of fluid from large joint	77	61	$230.74	$60.19
J1030 Injection, methylprednisolone acetate, 40 mg	75	57	$21.00	$5.46
J1885 Injection, ketorolac tromethamine, per 15 mg	58	29	$3.86	$0.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$324.00	$100.98
27447 Replacement of knee joint, both sides of knee	31	28	$764.59	$182.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$323.00	$116.95
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	17	17	$84.00	$12.88
27130 Replacement of thigh bone and hip joint with prosthesis	16	16	$724.99	$182.84
20985 Computer-assisted surgery for muscle and bone procedure	15	15	$71.94	$20.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	114	81	$208.00	$67.28
20610 Aspiration and/or injection of fluid from large joint	66	40	$220.03	$57.44
J1030 Injection, methylprednisolone acetate, 40 mg	45	33	$21.00	$6.13
27447 Replacement of knee joint, both sides of knee	35	35	$764.59	$192.93
J1885 Injection, ketorolac tromethamine, per 15 mg	34	12	$3.86	$0.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	33	32	$309.00	$98.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$310.00	$96.88
27130 Replacement of thigh bone and hip joint with prosthesis	18	18	$724.00	$194.78
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	13	13	$86.09	$24.96
29823 Removal of extensive shoulder joint tissue using an endoscope	13	13	$317.15	$26.22
29827 Repair of shoulder rotator cuff using an endoscope	11	11	$536.66	$154.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$470.00	$146.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	138	93	$208.00	$65.87
20610 Aspiration and/or injection of fluid from large joint	82	58	$227.51	$54.80
J1885 Injection, ketorolac tromethamine, per 15 mg	76	31	$2.10	$0.55
J1030 Injection, methylprednisolone acetate, 40 mg	68	54	$12.00	$6.27
27447 Replacement of knee joint, both sides of knee	54	51	$764.59	$188.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	49	44	$309.00	$96.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$470.00	$144.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$310.00	$95.60
27130 Replacement of thigh bone and hip joint with prosthesis	20	20	$716.04	$189.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	110	78	$202.00	$64.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	69	54	$301.00	$95.18
J1885 Injection, ketorolac tromethamine, per 15 mg	58	22	$2.04	$0.57
20610 Aspiration and/or injection of fluid from large joint	48	28	$236.04	$56.21
J1030 Injection, methylprednisolone acetate, 40 mg	39	25	$11.00	$6.68
27447 Replacement of knee joint, both sides of knee	28	26	$744.06	$188.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$458.00	$144.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$302.00	$94.97
27130 Replacement of thigh bone and hip joint with prosthesis	12	12	$696.86	$188.69

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	12	11	$294.00	$94.30

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CA 54564

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.

Physician Assistant - Surgical

NUCC Taxonomy Code: 363AS0400X

State License CA 54564

Definition to come...

Hospital & Practice Group Affiliations

Permanente Medical Group Inc

975 Sereno Dr, Vallejo, CA 945892441

Phone: 7076511000

Practice Associates & Co-Workers

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

19 Associated Practitioners

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Doctor of Medicine (M.D.)

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Dr. Arfan Din , DO

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Doctor of Osteopathic Medicine (D.O.)

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Family Medicine

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Doctor of Medicine (M.D.)

Dr. Stuart Hobbs , MD

Family Medicine

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Doctor of Medicine (M.D.)

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Physician Assistant

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 03, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location July 03, 2017

Registered at 2020 SUTTER PL STE 104, DAVIS, CA 956166217 (Tel: 5307505900)

📍

Updated Business Mailing Address July 03, 2017

Registered at 10470 OLD PLACERVILLE RD, STE 100, SACRAMENTO, CA 958272539 (Tel: 8004700071)

👤

Provider Name / Credentials Updated July 03, 2017

Recorded as MARK DIAZ, PA-C, MS, MPH

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 03, 2017

Physician Assistant (License #54564 in CA)

🟢

Initial NPI Registration & Enumeration June 21, 2017

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: 1164942116

Entity Type:

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

Enumeration Date: June 21, 2017

Last Update: July 03, 2017

Sole Proprietor: No

Update or Correct Profile

Mailing Address

10470 Old Placerville Rd, Ste 100

Sacramento, CA 958272539

Phone: 8004700071

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.