Dr. Mark A Thomas , MD
Internal Medicine • Topeka, KS
Professional Overview & Biography Verified Profile Summary
Dr. Mark Thomas, MD is a certified Internal Medicine practicing in Topeka, KS. With approximately 36 years of clinical experience since completing medical education in 1990, Dr. Thomas delivers high-quality medical care to the local community at 4409 SW SHENANDOAH RD.
Dr. Thomas is affiliated with Cotton-O'Neil Clinic Revocable Trust and accepts Medicare assignment.
Frequently performed procedures and clinical services include established patient outpatient office visit, insertion of needle into vein for collection of blood sample, chronic care management services, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
4409 Sw Shenandoah Rd
Topeka, KS 666101678
Medicare Profile & Education
Other
1990
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in Topeka, KS
Practicing in Topeka, KS (1061 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| 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
|
875 | 495 | $191.66 | $117.63 |
|
36415
Insertion of needle into vein for collection of blood sample
|
758 | 477 | $16.00 | $8.63 |
|
99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
|
555 | 104 | $75.34 | $58.00 |
|
G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
533 | 323 | $45.00 | $15.29 |
|
G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
471 | 471 | $233.35 | $119.50 |
|
G0444
Annual depression screening, 5 to 15 minutes
|
291 | 291 | $32.00 | $17.22 |
|
99439
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
|
196 | 64 | $69.25 | $44.28 |
|
77063
Screening digital tomography of both breasts
|
147 | 147 | $43.10 | $21.22 |
|
77067
Screening mammography
|
147 | 147 | $175.00 | $81.53 |
|
99213
Established patient office or other outpatient visit, typically 15 minutes
|
127 | 105 | $130.18 | $83.76 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
119 | 108 | $258.42 | $165.54 |
|
G0008
Administration of influenza virus vaccine
|
113 | 113 | $36.00 | $29.94 |
|
81003
Automated urinalysis test
|
110 | 106 | $78.60 | $2.20 |
|
82043
Urine microalbumin (protein) level
|
105 | 102 | $83.24 | $5.66 |
|
90653
Vaccine for influenza for injection into muscle
|
95 | 95 | $108.00 | $81.82 |
|
71046
X-ray of chest, 2 views
|
56 | 52 | $54.50 | $18.65 |
|
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
|
33 | 32 | $93.50 | $49.12 |
|
99495
Transitional care management services for problem of at least moderate complexity
|
31 | 27 | $294.53 | $189.99 |
|
73030
X-ray of shoulder, minimum of 2 views
|
29 | 26 | $63.25 | $20.73 |
|
G0009
Administration of pneumococcal vaccine
|
27 | 27 | $33.30 | $29.94 |
|
90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
|
27 | 27 | $540.07 | $289.02 |
|
G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
|
21 | 21 | $256.10 | $152.76 |
|
73562
X-ray of knee, 3 views
|
19 | 18 | $76.75 | $25.67 |
|
73502
X-ray of hip, 2-3 views
|
16 | 15 | $92.25 | $29.71 |
|
G0296
Counseling visit to discuss need for lung cancer screening using low dose ct scan (ldct) (service is for eligibility determination and shared decision making)
|
16 | 16 | $65.75 | $25.60 |
|
72050
X-ray of upper spine, 4 or 5 views
|
14 | 14 | $79.25 | $31.20 |
|
0241U
Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected
|
14 | 14 | $276.83 | $139.78 |
|
72110
X-ray of lower and sacral spine, minimum of 4 views
|
13 | 13 | $97.00 | $32.09 |
|
90694
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage
|
12 | 12 | $115.00 | $75.81 |
|
99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
12 | 11 | $77.45 | $51.70 |
|
99406
Smoking and tobacco use intermediate counseling, greater than 3 minutes up to 10 minutes
|
11 | 11 | $26.24 | $13.44 |
|
93005
Routine electrocardiogram (ecg) using at least 12 leads with tracing
|
11 | 11 | $62.75 | $5.50 |
Medical Specialties & State Licenses
CMS Verified: 2026-05-01NUCC Taxonomy Code: 207R00000X
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
Hospital & Practice Group Affiliations
Cotton-O'neil Clinic Revocable Trust
901 Sw Garfield Ave, Topeka, KS 666061670
Phone: 7853549591
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 4409 SW SHENANDOAH RD, TOPEKA, KS 666101678 (Tel: 7855546259)
Registered at 4409 SW SHENANDOAH RD, TOPEKA, KS 666101678 (Tel: 7855546259)
NPI status registered as active in NPPES database
Registered at 2909 SE WALNUT DR, TOPEKA, KS 666052189 (Tel: 7852670744)
Registered at 2909 SE WALNUT DR, TOPEKA, KS 666052189 (Tel: 7852670744)
Recorded as MARK THOMAS, MD
Internal Medicine (License #04-25848 in KS)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
Sign in to leave a review for Dr. Mark Thomas
Only verified registered users can submit ratings, post feedback, and upload facility photos.
NPI Administrative Meta
Mailing Address
4409 Sw Shenandoah Rd
Topeka, KS 666101678
Phone: 7855546259
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.