Active NPI 1679516116 Individual Practitioner Male Practitioner

Dr. Mark Anthony Johnston , MD

Internal Medicine • Dallas, TX

Professional Overview & Biography Verified Profile Summary

Dr. Mark Johnston, MD is a registered healthcare professional specializing in Internal Medicine in Dallas, TX. Practice services are available at 7515 GREENVILLE AVE under active NPI credentials.

Frequently performed procedures and clinical services include established patient outpatient office visit, routine ekg using at least 12 leads including interpretation and report, annual alcohol misuse screening, 5 to. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

7515 Greenville Ave
Suite 600

Dallas, TX 752313831

Telephone 2143615432

Fax 2143638710

Associated Practice Facility / Clinic

🏢 Deno B Barroga Md Mph And Associates Facility NPI 1245209915

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Dallas, TX

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 21.3 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

989 Specialists

Practicing in Dallas, TX (9538 Statewide)

Telehealth Adoption Rate

20.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

53.9% 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 (2019)

Reporting Year:

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	657	356	$238.33	$110.21
93000 Routine ekg using at least 12 leads including interpretation and report	301	276	$39.40	$17.27
G0442 Annual alcohol misuse screening, 5 to 15 minutes	280	280	$41.67	$18.43
G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes	278	278	$57.77	$26.57
G0444 Annual depression screening, 5 to 15 minutes	256	256	$40.71	$18.43
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	255	255	$258.81	$118.16
99213 Established patient office or other outpatient visit, typically 15 minutes	183	136	$159.95	$74.20
G0008 Administration of influenza virus vaccine	126	125	$58.00	$16.73
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	109	108	$45.85	$27.24
81003 Automated urinalysis test	72	58	$15.00	$2.44
87804 Detection test by immunoassay with direct visual observation for influenza virus	42	19	$35.00	$16.22
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	21	21	$348.02	$168.88
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	19	19	$165.00	$108.59
G0009 Administration of pneumococcal vaccine	18	18	$56.94	$16.73
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	17	17	$40.00	$18.65
G0405 Electrocardiogram, routine ecg with 12 leads; interpretation and report only, performed as a screening for the initial preventive physical examination	17	17	$48.67	$8.64
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	12	12	$123.00	$54.07
82270 Stool analysis for blood to screen for colon tumors	11	11	$20.00	$4.29

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	710	378	$243.32	$108.12
93000 Routine ekg using at least 12 leads including interpretation and report	360	331	$38.34	$17.05
G0442 Annual alcohol misuse screening, 5 to 15 minutes	340	340	$41.24	$18.49
G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes	336	336	$58.90	$25.82
G0444 Annual depression screening, 5 to 15 minutes	310	310	$41.16	$18.15
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	305	305	$261.65	$117.39
99213 Established patient office or other outpatient visit, typically 15 minutes	254	182	$162.01	$73.06
G0008 Administration of influenza virus vaccine	126	123	$58.00	$20.65
96103 Psychological testing with interpretation and report by computer	89	89	$62.60	$27.67
81003 Automated urinalysis test	76	63	$15.00	$2.71
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	65	65	$46.00	$23.57
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	59	59	$40.00	$18.33
87804 Detection test by immunoassay with direct visual observation for influenza virus	49	25	$35.00	$15.73
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	28	28	$383.00	$164.17
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	22	22	$165.00	$105.59
G0009 Administration of pneumococcal vaccine	22	22	$56.95	$20.65
82270 Stool analysis for blood to screen for colon tumors	17	17	$20.00	$4.29
94010 Test to measure expiratory airflow and volume	15	15	$83.00	$36.57
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	13	11	$95.00	$42.15

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	707	390	$244.47	$104.54
93000 Routine ekg using at least 12 leads including interpretation and report	352	326	$38.69	$16.51
G0442 Annual alcohol misuse screening, 5 to 15 minutes	297	297	$41.68	$17.55
G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes	292	292	$59.54	$25.00
G0444 Annual depression screening, 5 to 15 minutes	288	288	$41.75	$17.55
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	277	277	$265.39	$112.21
99213 Established patient office or other outpatient visit, typically 15 minutes	275	192	$165.33	$70.99
G0008 Administration of influenza virus vaccine	190	185	$58.00	$25.46
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	109	109	$46.00	$23.57
96103 Psychological testing with interpretation and report by computer	91	91	$63.00	$26.82
81003 Automated urinalysis test	75	63	$15.00	$3.02
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	57	56	$40.00	$18.65
87804 Detection test by immunoassay with direct visual observation for influenza virus	38	20	$35.00	$16.11
94010 Test to measure expiratory airflow and volume	19	19	$83.00	$34.97
93880 Ultrasound of both sides of head and neck blood flow	15	15	$466.00	$198.15
90630 Vaccine for influenza for injection into skin	15	15	$42.00	$19.93
82270 Stool analysis for blood to screen for colon tumors	14	14	$20.00	$4.37
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	13	13	$165.00	$95.53
G0009 Administration of pneumococcal vaccine	13	13	$57.31	$25.56
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	$123.00	$52.41
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	11	11	$38.00	$17.48

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX H1380

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

102595903 (TX)

Medicaid State Provider ID

102595901 (TX)

Commercial Insurance / Payer ID Railroad Medicare

110132707 (TX)

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. John Sanders , MD

Internal Medicine

NPI 1215973938

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 02, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location July 02, 2013

Registered at 7515 GREENVILLE AVE, SUITE 600, DALLAS, TX 752313831 (Tel: 2143615432)

📍

Updated Business Mailing Address July 02, 2013

Registered at 7515 GREENVILLE AVE, SUITE 600, DALLAS, TX 752313831 (Tel: 2143615432)

👤

Provider Name / Credentials Updated July 02, 2013

Recorded as MARK JOHNSTON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 02, 2013

Internal Medicine (License #H1380 in TX)

🟢

Initial NPI Registration & Enumeration June 13, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Mark Johnston. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1679516116

Entity Type:

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

Enumeration Date: June 13, 2006

Last Update: July 02, 2013

Sole Proprietor: No

Update or Correct Profile

Mailing Address

7515 Greenville Ave, Suite 600

Dallas, TX 752313831

Phone: 2143615432

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.