Active NPI 1295854008 Individual Practitioner Male Practitioner

James N Mcmullen , PA

Physician Assistant • Round Rock, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

James Mcmullen, PA is a certified Physician Assistant practicing in Round Rock, TX. With approximately 31 years of clinical experience since graduating from University Of Texas Medical Branch At Galveston in 1995, James Mcmullen delivers high-quality medical care to the local community at 300 UNIVERSITY BLVD.

James Mcmullen is affiliated with Harbor Health Medical Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, adm sarscov2 50mcg/0.25mlbst. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 University Blvd

Round Rock, TX 786651032

Telephone 5125090100

Associated Practice Facility / Clinic

🏢 Scott & White Hospital - Round Rock Facility NPI 1265568638

Medicare Profile & Education

Medical School

University Of Texas Medical Branch At Galveston

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Round Rock, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +21.3 yrs vs City Avg

City Avg: 9.7 Yrs

State Avg: 13.9 Yrs

Regional Practice Density

155 Specialists

Practicing in Round Rock, TX (11140 Statewide)

Telehealth Adoption Rate

28.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

67.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mcmullen (31 Years) 31 Yrs

Round Rock Specialty Average (9.7 Years) 9.7 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	43	36	$228.00	$72.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	29	$322.00	$109.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	51	44	$257.33	$77.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	36	$402.12	$110.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	158	117	$223.00	$76.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	86	64	$329.00	$109.51
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	50	50	$359.00	$112.85
0064A Adm sarscov2 50mcg/0.25mlbst	28	28	$120.00	$40.55
G0009 Administration of pneumococcal vaccine	16	16	$69.00	$30.39
G0008 Administration of influenza virus vaccine	13	13	$69.00	$30.48
0004A Fee covid-19 vac 1 res	13	13	$60.00	$37.31
99497 Advance care planning, first 30 minutes	12	12	$257.00	$71.72
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	11	11	$794.00	$278.05
90662 Influenza vaccine split virus, preservative free	11	11	$95.00	$67.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	112	84	$223.00	$79.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	89	66	$329.00	$113.52
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	61	61	$359.00	$116.37
0013A Adm sarscov2 100mcg/0.5ml3rd	22	22	$120.00	$41.31
99497 Advance care planning, first 30 minutes	20	20	$257.00	$73.96
0064A Adm sarscov2 50mcg/0.25mlbst	20	20	$120.00	$41.31
99442 Telephone medical discussion with physician, 11-20 minutes	14	13	$247.00	$80.15
G0008 Administration of influenza virus vaccine	13	13	$69.00	$17.49
0004A Fee covid-19 vac 1 res	11	11	$60.00	$41.31
90662 Influenza vaccine split virus, preservative free	11	11	$95.00	$64.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	84	70	$223.00	$64.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	48	$329.00	$95.09
99442 Telephone medical discussion with physician, 11-20 minutes	26	24	$240.62	$65.82
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	26	26	$359.00	$101.35
G0008 Administration of influenza virus vaccine	19	19	$69.00	$17.03
90662 Influenza vaccine split virus, preservative free	18	18	$95.00	$56.92
99441 Telephone medical discussion with physician, 5-10 minutes	13	13	$108.15	$39.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	139	112	$223.00	$62.70
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	97	74	$329.00	$91.81
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	36	36	$359.00	$100.44
G0008 Administration of influenza virus vaccine	20	20	$69.00	$16.73
G0444 Annual depression screening, 5 to 15 minutes	19	19	$56.00	$15.70
90662 Influenza vaccine split virus, preservative free	17	17	$95.00	$54.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	130	103	$220.45	$61.42
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	44	$324.42	$84.03
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	28	28	$348.68	$99.58
G0008 Administration of influenza virus vaccine	14	14	$69.00	$20.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	132	104	$219.00	$61.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	61	48	$323.00	$89.28
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	18	18	$342.00	$98.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$323.00	$91.88

Medical Specialties & State Licenses

CMS Verified: 2026-07-15

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License TX PA01452

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

328452302 (TX)

Medicaid State Provider ID

328452301 (TX)

Hospital & Practice Group Affiliations

Harbor Health Medical Group

2200 Park Bend Dr, Austin, TX 787585387

Phone: 8554818375

Harbor Health Medical Group

505 W Louis Henna Blvd, Austin, TX 787281702

Phone: 8554818375

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. Matthew Danley , DO

Anesthesiology

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Doctor of Osteopathic Medicine (D.O.)

Dr. Cody Quirk , MD

Radiology - Diagnostic Radiology

NPI 1023308541

Doctor of Medicine (M.D.)

Caitlin O'connor , CRNA

Nurse Anesthetist, Certified Registered

NPI 1023407475

Certified Registered Nurse Anesthetist

Dr. Yiting Cui , MD

Student in an Organized Health Care Education/Training Program

NPI 1023966306

Doctor of Medicine (M.D.)

Dr. Jaclyn Nguyen , MD

Emergency Medicine

NPI 1033567052

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location July 02, 2026

Registered at 300 UNIVERSITY BLVD, ROUND ROCK, TX 786651032 (Tel: 5125090100)

📍

Updated Business Mailing Address July 02, 2026

Registered at PO BOX 844658, DALLAS, TX 752844658 (Tel: 8009940371)

📍

Updated Practice Location August 15, 2023

Registered at 3200 RED RIVER ST STE 201, AUSTIN, TX 787052655 (Tel: 8558418375)

✅

NPI Profile Active January 29, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location January 29, 2015

Registered at 1400 N IH 35, SUITE 300, AUSTIN, TX 787011926 (Tel: 5123248960)

📍

Updated Business Mailing Address January 29, 2015

Registered at 313 E 12TH ST STE 101, AUSTIN, TX 787011955 (Tel: 5123249650)

👤

Provider Name / Credentials Updated January 29, 2015

Recorded as JAMES MCMULLEN, P.A

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 29, 2015

Physician Assistant (License #PA01452 in TX)

🟢

Initial NPI Registration & Enumeration March 29, 2007

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: 1295854008

Entity Type:

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

Enumeration Date: March 29, 2007

Last Update: July 15, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 844658

Dallas, TX 752844658

Phone: 8009940371

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.