Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1013992015 Individual Practitioner Male Practitioner

Dr. James Michael Neff , MD

Internal Medicine • Corpus Christi, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. James Neff, MD is a certified Internal Medicine practicing in Corpus Christi, TX. With approximately 47 years of clinical experience since graduating from University Of Texas Southwestern Medical School At Dallas in 1979, Dr. Neff delivers high-quality medical care to the local community at 7121 S PADRE ISLAND DR.

Dr. Neff maintains professional affiliations with Christus Trinity Clinic, Shea Physical Therapy Specialists Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, methylprednisolone acetate, 1 mg, low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, 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

7121 S Padre Island Dr

Corpus Christi, TX 784124940

Telephone 3616966200
Fax 3616966054
Associated Practice Facility / Clinic
🏢 Thomas-Spann Clinic, P.a. Facility NPI 1013994847

Medicare Profile & Education

Medical School

University Of Texas Southwestern Medical School At Dallas

Graduation Year

1979

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Corpus Christi, TX

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
47 Yrs +25.1 yrs vs City Avg
City Avg: 21.9 Yrs
State Avg: 26.2 Yrs
Regional Practice Density
106 Specialists

Practicing in Corpus Christi, TX (9538 Statewide)

Telehealth Adoption Rate
11.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
68.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Neff (47 Years) 47 Yrs
Corpus Christi Specialty Average (21.9 Years) 21.9 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
J1010 Injection, methylprednisolone acetate, 1 mg
1,400 22 $0.50 $0.13
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
1,100 11 $6.98 $0.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
742 380 $289.00 $125.20
36415 Insertion of needle into vein for collection of blood sample
644 387 $30.00 $8.65
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
575 382 $27.00 $7.61
80053 Blood test, comprehensive group of blood chemicals
567 380 $37.00 $10.35
80061 Blood test, lipids (cholesterol and triglycerides)
432 352 $46.00 $13.07
81001 Manual urinalysis test with examination using microscope, automated
415 319 $12.00 $3.10
84443 Blood test, thyroid stimulating hormone (TSH)
360 303 $59.00 $16.46
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
216 28 $4.04 $0.98
93000 Routine ekg using at least 12 leads including interpretation and report
170 159 $54.00 $13.96
83036 Hemoglobin A1C level
132 111 $34.00 $9.52
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
108 104 $406.00 $176.22
71046 X-ray of chest, 2 views
105 97 $116.00 $32.34
87086 Bacterial colony count, urine
94 71 $28.00 $7.83
99213 Established patient office or other outpatient visit, typically 15 minutes
93 79 $204.00 $89.11
85652 Red blood cell sedimentation rate, to detect inflammation, automated
74 64 $9.00 $2.65
84153 Psa (prostate specific antigen) measurement, total
67 63 $64.00 $18.02
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
64 40 $110.00 $13.98
G0103 Prostate cancer screening; prostate specific antigen test (psa)
50 50 $67.00 $18.92
83880 Natriuretic peptide (heart and blood vessel protein) level
41 27 $137.00 $38.47
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
40 40 $295.00 $128.70
84481 Thyroid hormone, t3 measurement, free
39 32 $59.00 $16.60
87077 Bacterial culture for aerobic isolates
38 29 $28.00 $7.73
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution
38 29 $30.00 $8.28
84439 Thyroxine (thyroid chemical), free
36 30 $32.00 $8.84
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician
34 34 $160.00 $70.00
77080 Dxa bone density measurement of hip, pelvis, spine
31 31 $127.00 $37.21
20610 Aspiration and/or injection of fluid from large joint
28 19 $248.43 $70.51
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
28 27 $687.00 $186.48
82306 Vitamin d-3 level
26 26 $103.00 $29.01
83615 Lactate dehydrogenase (enzyme) level
24 23 $21.00 $5.92
G0179 Physician re-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 to affirm the initial imp
23 15 $91.00 $40.76
82607 Cyanocobalamin (vitamin B-12) level
20 20 $53.00 $14.78
93880 Ultrasound of both sides of head and neck blood flow
20 19 $940.00 $180.68
83540 Iron level
19 19 $22.00 $6.34
83550 Iron binding capacity
19 19 $30.00 $8.57
82728 Ferritin (blood protein) level
18 18 $47.00 $13.36
80048 Blood test, basic group of blood chemicals (calcium, total)
16 15 $29.00 $8.29
99495 Transitional care management services for problem of at least moderate complexity
16 16 $463.00 $203.21
82270 Stool analysis for blood to screen for colon tumors
16 16 $16.00 $4.29
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
14 12 $119.00 $52.52

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX G2795

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.

Hospital & Practice Group Affiliations

Christus Trinity Clinic

620 S Fleishel Ave, Tyler, TX 757012041

Phone: 9036064900

Christus Trinity Clinic

Po Box, Dallas, TX 752846098

Christus Trinity Clinic

630 S Fleishel Ave, Tyler, TX 757012041

Phone: 9036065560

Shea Physical Therapy Specialists Llc

5440 Everhart Rd, Corpus Christi, TX 784114838

Phone: 3619945224

Christus Trinity Clinic

5802 Saratoga Blvd, Corpus Christi, TX 784144254

Phone: 3619864600

Practice Associates & Co-Workers

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

30 Associated Practitioners
Janet Maher

Nurse Practitioner

NPI 1023310018
Marie Impe , NP

Nurse Practitioner - Family

NPI 1033870456

Nurse Practitioner

Joan Webb , FNP-C

Nurse Practitioner

NPI 1073119970

Family Nurse Practitioner (Certified)

Dr. John Hartman , DO

Family Medicine

NPI 1104238666

Doctor of Osteopathic Medicine (D.O.)

Maria Lopez , NP

Nurse Practitioner - Gerontology

NPI 1124480751

Nurse Practitioner

Dr. Orel Everett , MD

Family Medicine

NPI 1164509659

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 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 7121 S PADRE ISLAND DR, CORPUS CHRISTI, TX 784124940 (Tel: 3616966200)

📍
Updated Business Mailing Address July 08, 2007

Registered at PO BOX 6409, CORPUS CHRISTI, TX 784666409 (Tel: 3616966200)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as JAMES NEFF, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #G2795 in TX)

🟢
Initial NPI Registration & Enumeration December 13, 2005

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: 1013992015
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 13, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

Po Box 6409

Corpus Christi, TX 784666409

Phone: 3616966200

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.