Active NPI 1205891207 Individual Practitioner Male Practitioner

Dr. John M Willis , DO

Internal Medicine • Mansfield, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Willis, DO is a certified Internal Medicine practicing in Mansfield, TX. With approximately 36 years of clinical experience since graduating from University Of North Texas Hsc, College Of Osteopathic Med in 1990, Dr. Willis delivers high-quality medical care to the local community at 252 MATLOCK RD STE 130.

Dr. Willis is affiliated with Medhealth and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, administration of influenza virus vaccine, influenza vaccine split virus, preservative free. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

252 Matlock Rd Ste 130

Mansfield, TX 760634295

Telephone 6822428990

Fax 6822428996

Medicare Profile & Education

Medical School

University Of North Texas Hsc, College Of Osteopathic Med

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Mansfield, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs +16.4 yrs vs City Avg

City Avg: 19.6 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

32 Specialists

Practicing in Mansfield, TX (9538 Statewide)

Telehealth Adoption Rate

25.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Willis (36 Years) 36 Yrs

Mansfield Specialty Average (19.6 Years) 19.6 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	322	167	$233.00	$88.85
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	267	142	$330.00	$126.18
G0008 Administration of influenza virus vaccine	52	50	$34.00	$31.92
90662 Influenza vaccine split virus, preservative free	48	46	$141.83	$81.00
99497 Advance care planning, first 30 minutes	19	19	$216.00	$80.01
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	19	19	$337.00	$127.15
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	18	18	$748.00	$286.97
G0009 Administration of pneumococcal vaccine	17	17	$46.00	$31.92
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	13	13	$135.00	$52.63
93000 Routine ekg using at least 12 leads including interpretation and report	12	12	$36.00	$14.04

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	298	159	$330.00	$124.82
99213 Established patient office or other outpatient visit, typically 15 minutes	295	165	$233.00	$88.96
G0008 Administration of influenza virus vaccine	76	74	$34.00	$30.30
90662 Influenza vaccine split virus, preservative free	71	69	$140.08	$71.83
99497 Advance care planning, first 30 minutes	53	53	$216.00	$80.02
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	50	50	$337.00	$124.46
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	28	11	$36.00	$13.96
81002 Urinalysis, manual test	14	11	$4.00	$3.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$144.00	$55.97
93000 Routine ekg using at least 12 leads including interpretation and report	11	11	$36.00	$14.24

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	375	190	$330.00	$128.08
99213 Established patient office or other outpatient visit, typically 15 minutes	263	165	$233.00	$90.90
G0008 Administration of influenza virus vaccine	95	92	$34.00	$29.31
90662 Influenza vaccine split virus, preservative free	90	87	$137.56	$68.28
99497 Advance care planning, first 30 minutes	79	79	$216.00	$84.73
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	78	78	$337.00	$131.75
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	60	12	$2.00	$1.13
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	55	49	$144.00	$56.76
93000 Routine ekg using at least 12 leads including interpretation and report	27	25	$36.89	$14.33
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	18	12	$36.00	$14.44
81002 Urinalysis, manual test	14	11	$4.00	$3.45
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	12	11	$57.50	$43.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	338	194	$168.14	$91.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	293	168	$245.14	$131.13
G0008 Administration of influenza virus vaccine	74	73	$32.48	$17.00
90662 Influenza vaccine split virus, preservative free	66	66	$74.27	$65.26
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	52	46	$101.69	$56.08
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	48	48	$304.54	$134.65
99497 Advance care planning, first 30 minutes	41	41	$210.15	$86.41
93000 Routine ekg using at least 12 leads including interpretation and report	22	21	$47.27	$14.92
81002 Urinalysis, manual test	12	12	$4.67	$3.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	550	266	$149.00	$74.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	135	103	$219.00	$107.47
G0008 Administration of influenza virus vaccine	108	104	$25.33	$16.72
90662 Influenza vaccine split virus, preservative free	98	95	$80.00	$60.73
99497 Advance care planning, first 30 minutes	49	49	$208.00	$87.45
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	41	41	$293.17	$118.02
81002 Urinalysis, manual test	25	22	$5.00	$3.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$219.00	$108.56
99441 Telephone medical discussion with physician, 5-10 minutes	17	17	$89.00	$44.26
G0009 Administration of pneumococcal vaccine	17	17	$25.33	$16.64
93000 Routine ekg using at least 12 leads including interpretation and report	15	15	$50.00	$17.24
90670 Pneumococcal vaccine for injection into muscle	14	14	$200.00	$198.86
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	13	11	$45.00	$14.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	572	224	$149.12	$73.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	151	96	$219.00	$105.11
G0008 Administration of influenza virus vaccine	89	86	$25.33	$16.41
90662 Influenza vaccine split virus, preservative free	84	80	$80.00	$52.68
81002 Urinalysis, manual test	38	25	$5.00	$3.32
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	31	20	$45.00	$15.56
93000 Routine ekg using at least 12 leads including interpretation and report	31	27	$50.00	$15.80
G0009 Administration of pneumococcal vaccine	21	21	$25.33	$16.41
90670 Pneumococcal vaccine for injection into muscle	20	20	$200.00	$186.20
J1030 Injection, methylprednisolone acetate, 40 mg	16	15	$15.00	$5.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	732	263	$149.00	$72.35
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	132	94	$219.00	$106.31
G0008 Administration of influenza virus vaccine	94	92	$25.33	$20.25
90662 Influenza vaccine split virus, preservative free	69	67	$53.22	$42.16
J1100 Injection, dexamethasone sodium phosphate, 1 mg	56	11	$5.00	$0.12
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	37	29	$45.00	$20.47
81002 Urinalysis, manual test	33	27	$5.00	$3.41
J1030 Injection, methylprednisolone acetate, 40 mg	28	25	$15.00	$6.63
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	27	27	$25.00	$16.83
93000 Routine ekg using at least 12 leads including interpretation and report	25	24	$50.00	$16.80
G0009 Administration of pneumococcal vaccine	17	17	$25.33	$20.27
90670 Pneumococcal vaccine for injection into muscle	16	16	$200.00	$195.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	830	292	$142.00	$71.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	243	151	$208.19	$105.37
G0008 Administration of influenza virus vaccine	120	116	$25.33	$24.61
99183 Management and supervision of oxygen chamber therapy per session	103	12	$338.00	$109.00
90662 Influenza vaccine split virus, preservative free	95	92	$38.00	$37.24
99183 Management and supervision of oxygen chamber therapy per session	89	12	$338.00	$109.44
J1100 Injection, dexamethasone sodium phosphate, 1 mg	60	14	$5.00	$0.11
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	53	42	$45.00	$24.89
81002 Urinalysis, manual test	43	28	$5.00	$3.35
J1030 Injection, methylprednisolone acetate, 40 mg	29	25	$13.45	$5.78
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	28	28	$25.00	$16.23
93000 Routine ekg using at least 12 leads including interpretation and report	18	18	$50.00	$16.75
G0405 Electrocardiogram, routine ecg with 12 leads; interpretation and report only, performed as a screening for the initial preventive physical examination	15	15	$45.00	$8.47
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	14	14	$147.86	$114.30
90670 Pneumococcal vaccine for injection into muscle	11	11	$200.00	$187.76

Medical Specialties & State Licenses

CMS Verified: 2022-03-23

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX J0366

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

129827510 (TX)

Commercial Insurance / Payer ID Blue Cross

8X9688 (TX)

Hospital & Practice Group Affiliations

Medhealth

252 Matlock Rd, Mansfield, TX 760634295

Phone: 8174737184

Secondary Practice Locations

2800 E Broad St Ste 512

Mansfield, TX 760636417

Phone: 8174736867

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Khoi Tran , DO

Family Medicine

NPI 1750769840

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location March 23, 2022

Registered at 252 MATLOCK RD STE 130, MANSFIELD, TX 760634295 (Tel: 6822428990)

📍

Updated Business Mailing Address March 23, 2022

Registered at 252 MATLOCK RD STE 130, MANSFIELD, TX 760634295 (Tel: 6822428990)

✅

NPI Profile Active December 04, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location December 04, 2012

Registered at 2800 E BROAD ST STE 512, MANSFIELD, TX 760636417 (Tel: 8174736867)

📍

Updated Business Mailing Address December 04, 2012

Registered at 2800 E BROAD ST STE 512, MANSFIELD, TX 760636417 (Tel: 8174736867)

👤

Provider Name / Credentials Updated December 04, 2012

Recorded as JOHN WILLIS, DO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 04, 2012

Internal Medicine (License #J0366 in TX)

🟢

Initial NPI Registration & Enumeration April 20, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1205891207

Entity Type:

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

Enumeration Date: April 20, 2006

Last Update: March 23, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

252 Matlock Rd Ste 130

Mansfield, TX 760634295

Phone: 6822428990

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.