Active NPI 1700370020 Individual Practitioner Male Practitioner

Mark Diaz , PA-C

Physician Assistant • Madison, WI

Professional Overview & Biography Verified Profile Summary

Mark Diaz, PA-C is a registered healthcare professional specializing in Physician Assistant in Madison, WI. Practice services are available at 77 S OAKBRIDGE CT APT 105 under active NPI credentials.

Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, emergency department visit with moderate level of medical decision making, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

77 S Oakbridge Ct Apt 105

Madison, WI 537172030

Telephone 5626593459

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Madison, WI

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 12.0 Yrs

State Avg: 14.1 Yrs

Regional Practice Density

397 Specialists

Practicing in Madison, WI (3517 Statewide)

Telehealth Adoption Rate

18.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

87.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
99285 Emergency department visit for life threatening or functioning severity	142	138	$1004.01	$135.67
99284 Emergency department visit with moderate level of medical decision making	115	112	$712.90	$93.77
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	78	72	$138.11	$6.41
99283 Emergency department visit with low level of medical decision making	38	38	$481.45	$55.19
99291 Critical care, first 30-74 minutes	21	21	$1354.35	$165.63

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	129	124	$1012.44	$138.34
99284 Emergency department visit with moderate level of medical decision making	105	105	$721.04	$95.55
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	38	37	$141.00	$6.52
99283 Emergency department visit with low level of medical decision making	26	26	$495.88	$56.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	120	108	$141.00	$6.67
99285 Emergency department visit for life threatening or functioning severity	98	97	$997.00	$140.06
99284 Emergency department visit with moderate level of medical decision making	85	85	$687.00	$97.04
99283 Emergency department visit with low level of medical decision making	36	33	$376.00	$57.21
12001 Repair of wound (2.5 centimeters or less) of the scalp, neck, underarms, trunk, arms and/or legs	11	11	$397.00	$33.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	150	141	$141.00	$6.81
99284 Emergency department visit with moderate level of medical decision making	76	75	$687.00	$98.28
99285 Emergency department visit for life threatening or functioning severity	75	73	$997.00	$143.37
99283 Emergency department visit with low level of medical decision making	38	38	$376.00	$58.08
12011 Repair of wound (2.5 centimeters or less) of the face, ears, eyelids, nose, lips, and/or mucous membranes	11	11	$499.00	$41.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	84	81	$141.00	$7.05
99285 Emergency department visit for life threatening or functioning severity	46	46	$898.70	$140.35
99284 Emergency department visit with moderate level of medical decision making	45	42	$622.78	$96.81
99283 Emergency department visit with low level of medical decision making	36	35	$362.22	$53.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	59	59	$759.00	$139.58
99284 Emergency department visit with moderate level of medical decision making	40	38	$517.00	$94.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	24	23	$258.00	$94.74
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	23	23	$141.00	$6.96
99283 Emergency department visit with low level of medical decision making	21	21	$345.00	$48.95
99213 Established patient office or other outpatient visit, typically 15 minutes	20	20	$175.15	$64.91
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$259.00	$94.33
12001 Repair of wound (2.5 centimeters or less) of the scalp, neck, underarms, trunk, arms and/or legs	13	13	$397.00	$35.71

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License WI 4404-23

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.

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active June 20, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location June 20, 2018

Registered at 77 S OAKBRIDGE CT APT 105, MADISON, WI 537172030 (Tel: 5626593459)

📍

Updated Business Mailing Address June 20, 2018

Registered at 77 S OAKBRIDGE CT APT 105, MADISON, WI 537172030

👤

Provider Name / Credentials Updated June 20, 2018

Recorded as MARK DIAZ, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 20, 2018

Physician Assistant (License #4404-23 in WI)

🟢

Initial NPI Registration & Enumeration June 20, 2018

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: 1700370020

Entity Type:

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

Enumeration Date: June 20, 2018

Last Update: June 20, 2018

Sole Proprietor: No

Update or Correct Profile

Mailing Address

77 S Oakbridge Ct Apt 105

Madison, WI 537172030

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.