Active NPI 1144232265 Individual Practitioner Male Practitioner

Dr. Michael Thomas Johnston , MD

Internal Medicine • Dallas, TX

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Michael Johnston, MD is a certified Internal Medicine practicing in Dallas, TX. With approximately 31 years of clinical experience since graduating from University Of Texas Medical School At San Antonio in 1995, Dr. Johnston delivers high-quality medical care to the local community at 3417 GASTON AVE.

Dr. Johnston is affiliated with Healthtexas Provider Network and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include injection, denosumab, 1 mg, established patient outpatient office visit, insertion of needle into vein for collection of blood sample. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3417 Gaston Ave
Suite 1000

Dallas, TX 752462016

Telephone 4698009000

Fax 4698009010

Associated Practice Facility / Clinic

🏢 Healthtexas-Med Provider Facility NPI 1992700512

Medicare Profile & Education

Medical School

University Of Texas Medical School At San Antonio

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Dallas, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +9.7 yrs vs City Avg

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

✓ Offers Virtual Consultations

Medicare Pricing Discount

60.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Johnston (31 Years) 31 Yrs

Dallas Specialty Average (21.3 Years) 21.3 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
J0897 Injection, denosumab, 1 mg	1,920	18	$77.54	$25.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	674	350	$238.22	$125.02
36415 Insertion of needle into vein for collection of blood sample	629	411	$17.00	$8.63
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	346	346	$160.00	$127.43
99213 Established patient office or other outpatient visit, typically 15 minutes	253	229	$168.44	$89.73
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	210	149	$58.38	$16.11
G0008 Administration of influenza virus vaccine	128	125	$26.00	$25.48
90673 Influenza vaccine, trivalent derived from recombinant dna	105	105	$125.00	$81.82
G0009 Administration of pneumococcal vaccine	56	56	$43.00	$32.05
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	56	56	$1159.20	$290.11
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	32	18	$65.00	$14.14
87804 Detection test by immunoassay with direct visual observation for influenza virus	28	14	$99.31	$16.22
71046 X-ray of chest, 2 views	23	21	$101.27	$28.35
93000 Routine ekg using at least 12 leads including interpretation and report	23	22	$51.39	$14.08
90662 Influenza vaccine split virus, preservative free	23	23	$123.26	$78.38
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	20	20	$229.54	$162.81
99422 Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes	17	16	$68.86	$28.89
77080 Dxa bone density measurement of hip, pelvis, spine	16	16	$236.00	$33.71
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	15	14	$73.76	$52.98
77067 Screening mammography	14	14	$457.64	$112.62
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	14	14	$84.54	$34.62
77063 Screening digital tomography of both breasts	14	14	$187.12	$41.00
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	11	11	$230.00	$161.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	2,460	23	$56.29	$22.67
36415 Insertion of needle into vein for collection of blood sample	633	430	$17.00	$8.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	521	302	$238.22	$125.38
99213 Established patient office or other outpatient visit, typically 15 minutes	442	392	$168.44	$89.35
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	353	353	$160.00	$127.46
G0008 Administration of influenza virus vaccine	104	104	$26.00	$25.48
90662 Influenza vaccine split virus, preservative free	77	77	$120.00	$71.93
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	47	26	$65.00	$14.17
71046 X-ray of chest, 2 views	33	30	$119.26	$33.24
G0009 Administration of pneumococcal vaccine	32	32	$43.00	$30.63
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	32	32	$938.81	$281.07
77080 Dxa bone density measurement of hip, pelvis, spine	27	27	$250.00	$38.30
93000 Routine ekg using at least 12 leads including interpretation and report	22	22	$51.39	$13.88
90682 Influenza vaccine, quadrivalent derived from recombinant dna	22	22	$120.00	$70.85
77063 Screening digital tomography of both breasts	20	20	$187.12	$52.96
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	20	18	$73.76	$52.23
77067 Screening mammography	20	20	$457.64	$129.53
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	18	18	$230.00	$159.03
99422 Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes	17	16	$68.86	$29.11
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	16	16	$229.54	$164.34
99423 Online digital evaluation and management service for an established patient for up to 7 days, total time 21 or more minutes	13	13	$125.15	$44.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	1,920	20	$21.00	$20.78
36415 Insertion of needle into vein for collection of blood sample	643	436	$17.00	$2.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	566	307	$194.47	$128.43
99213 Established patient office or other outpatient visit, typically 15 minutes	437	383	$128.95	$91.16
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	324	324	$160.00	$132.23
90682 Influenza vaccine, quadrivalent derived from recombinant dna	154	149	$114.20	$68.50
G0008 Administration of influenza virus vaccine	154	149	$30.87	$28.03
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	47	23	$65.00	$14.56
77067 Screening mammography	28	28	$398.90	$132.96
77063 Screening digital tomography of both breasts	28	28	$162.41	$53.80
71046 X-ray of chest, 2 views	28	25	$92.74	$34.78
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	28	28	$768.15	$278.86
G0009 Administration of pneumococcal vaccine	26	26	$37.74	$30.05
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	25	25	$229.54	$168.15
77080 Dxa bone density measurement of hip, pelvis, spine	19	19	$250.00	$38.13
99442 Telephone medical discussion with physician, 11-20 minutes	16	16	$149.07	$91.72
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report	15	15	$50.00	$14.44
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	15	12	$73.76	$53.52
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	15	15	$45.98	$23.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	1,920	20	$21.00	$20.52
36415 Insertion of needle into vein for collection of blood sample	597	401	$17.00	$3.00
99213 Established patient office or other outpatient visit, typically 15 minutes	449	393	$105.00	$92.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	430	279	$170.00	$131.56
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	331	331	$160.00	$134.74
G0008 Administration of influenza virus vaccine	147	147	$31.44	$17.35
90682 Influenza vaccine, quadrivalent derived from recombinant dna	144	144	$67.29	$65.11
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	35	23	$65.00	$14.49
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	28	28	$154.18	$124.85
G0009 Administration of pneumococcal vaccine	28	28	$34.45	$17.50
71046 X-ray of chest, 2 views	27	27	$78.00	$34.73
77063 Screening digital tomography of both breasts	24	24	$141.00	$56.19
77067 Screening mammography	24	24	$348.00	$136.91
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	20	20	$230.00	$170.85
99442 Telephone medical discussion with physician, 11-20 minutes	19	19	$128.00	$93.25
77080 Dxa bone density measurement of hip, pelvis, spine	18	18	$250.00	$39.38
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	17	16	$73.76	$53.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	1,620	16	$21.00	$19.66
36415 Insertion of needle into vein for collection of blood sample	544	366	$17.00	$2.98
99213 Established patient office or other outpatient visit, typically 15 minutes	533	418	$105.00	$76.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	420	265	$170.00	$110.71
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	330	330	$160.00	$119.73
90682 Influenza vaccine, quadrivalent derived from recombinant dna	157	153	$63.30	$60.17
G0008 Administration of influenza virus vaccine	157	153	$30.78	$17.02
99442 Telephone medical discussion with physician, 11-20 minutes	70	59	$76.72	$59.72
G0009 Administration of pneumococcal vaccine	52	52	$31.09	$17.00
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	48	48	$152.61	$118.75
71046 X-ray of chest, 2 views	40	39	$78.00	$33.76
77067 Screening mammography	33	33	$348.00	$142.58
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	32	11	$48.45	$42.18
77063 Screening digital tomography of both breasts	32	32	$141.00	$57.17
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	29	29	$230.00	$176.65
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	29	18	$65.00	$14.72
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	25	25	$221.72	$171.92
77080 Dxa bone density measurement of hip, pelvis, spine	23	23	$250.00	$40.97
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$50.00	$17.50
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	13	$64.03	$54.93
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report	11	11	$50.00	$17.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	2,640	26	$21.00	$18.61
36415 Insertion of needle into vein for collection of blood sample	767	479	$17.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	620	343	$170.00	$110.13
99213 Established patient office or other outpatient visit, typically 15 minutes	481	417	$105.00	$75.49
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	303	303	$160.00	$118.66
G0008 Administration of influenza virus vaccine	199	190	$26.50	$16.73
90682 Influenza vaccine, quadrivalent derived from recombinant dna	197	189	$60.99	$54.67
G0009 Administration of pneumococcal vaccine	68	68	$26.50	$16.73
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	62	62	$230.00	$174.97
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	54	37	$108.00	$42.30
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	49	30	$65.00	$17.04
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	47	47	$140.64	$110.49
77080 Dxa bone density measurement of hip, pelvis, spine	41	41	$244.59	$40.27
71046 X-ray of chest, 2 views	40	39	$78.00	$31.68
93000 Routine ekg using at least 12 leads including interpretation and report	39	38	$50.00	$17.33
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	36	19	$42.83	$42.04
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	23	22	$56.74	$54.27
90670 Pneumococcal vaccine for injection into muscle	21	21	$263.00	$207.68
77067 Screening mammography	19	19	$348.00	$139.58
77063 Screening digital tomography of both breasts	15	15	$141.00	$56.23
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	13	13	$210.00	$168.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	2,040	21	$22.40	$17.96
36415 Insertion of needle into vein for collection of blood sample	747	467	$17.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	673	351	$170.00	$107.83
80053 Blood test, comprehensive group of blood chemicals	569	401	$80.00	$12.76
99213 Established patient office or other outpatient visit, typically 15 minutes	502	420	$105.00	$73.19
80061 Blood test, lipids (cholesterol and triglycerides)	502	383	$83.00	$16.15
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	499	383	$32.00	$9.40
81001 Manual urinalysis test with examination using microscope, automated	459	362	$22.00	$3.83
84443 Blood test, thyroid stimulating hormone (TSH)	431	363	$86.00	$20.33
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	289	289	$156.50	$117.27
83036 Hemoglobin A1C level	229	131	$42.00	$11.71
G0008 Administration of influenza virus vaccine	220	215	$26.50	$20.65
90682 Influenza vaccine, quadrivalent derived from recombinant dna	216	215	$60.00	$52.30
93000 Routine ekg using at least 12 leads including interpretation and report	208	204	$50.00	$17.04
82306 Vitamin d-3 level	129	125	$100.00	$35.82
G0009 Administration of pneumococcal vaccine	106	106	$26.50	$20.65
84153 Psa (prostate specific antigen) measurement, total	82	81	$85.00	$22.26
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	68	68	$215.11	$172.66
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	66	66	$100.91	$97.69
71046 X-ray of chest, 2 views	54	50	$78.00	$30.84
77080 Dxa bone density measurement of hip, pelvis, spine	41	41	$250.00	$42.38
90670 Pneumococcal vaccine for injection into muscle	40	40	$239.00	$197.65
G0103 Prostate cancer screening; prostate specific antigen test (psa)	37	37	$30.00	$22.26
77067 Screening mammography	31	31	$348.00	$139.03
84550 Uric acid level, blood	30	23	$26.00	$5.47
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	29	18	$42.83	$42.19
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	26	23	$65.00	$20.74
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$280.00	$165.59
82607 Cyanocobalamin (vitamin B-12) level	20	20	$76.00	$18.24
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	20	20	$205.22	$166.53
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	19	16	$192.00	$81.19
84439 Thyroxine (thyroid chemical), free	19	17	$69.00	$10.91
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	18	17	$56.74	$54.16
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	14	$245.00	$146.35
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	15	15	$23.50	$18.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0897 Injection, denosumab, 1 mg	2,040	22	$21.00	$16.68
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml	1,300	12	$3.00	$0.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	750	365	$170.00	$106.98
36415 Insertion of needle into vein for collection of blood sample	637	402	$17.00	$2.93
99213 Established patient office or other outpatient visit, typically 15 minutes	398	346	$105.00	$73.00
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	323	280	$32.00	$10.43
81001 Manual urinalysis test with examination using microscope, automated	310	270	$22.00	$4.25
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	252	252	$117.83	$115.47
80053 Blood test, comprehensive group of blood chemicals	251	236	$80.00	$12.42
G0008 Administration of influenza virus vaccine	247	237	$26.50	$25.56
80061 Blood test, lipids (cholesterol and triglycerides)	232	225	$83.00	$12.69
93000 Routine ekg using at least 12 leads including interpretation and report	210	206	$50.00	$16.92
84443 Blood test, thyroid stimulating hormone (TSH)	206	204	$86.00	$22.51
90662 Influenza vaccine split virus, preservative free	193	192	$45.50	$44.36
83036 Hemoglobin A1C level	93	84	$42.00	$12.94
G0009 Administration of pneumococcal vaccine	86	86	$26.50	$25.56
82306 Vitamin d-3 level	84	84	$100.00	$36.53
71020 X-ray of chest, 2 views, front and side	71	69	$75.00	$28.21
77080 Dxa bone density measurement of hip, pelvis, spine	61	61	$250.00	$41.14
90670 Pneumococcal vaccine for injection into muscle	59	59	$209.71	$184.37
84153 Psa (prostate specific antigen) measurement, total	57	57	$85.00	$24.73
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	55	54	$23.50	$18.65
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	54	54	$176.70	$168.08
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	39	20	$42.83	$41.77
G0202 Screening mammography, bilateral (2-view study of each breast), including computer-aided detection (cad) when performed	29	29	$348.00	$136.69
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	29	23	$56.74	$54.02
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	28	28	$90.00	$88.20
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	21	18	$65.00	$25.76
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	20	15	$192.00	$69.83
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	18	18	$245.00	$145.41
84550 Uric acid level, blood	13	13	$26.00	$3.49
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	12	12	$162.22	$158.98
84439 Thyroxine (thyroid chemical), free	12	12	$69.00	$12.12
82607 Cyanocobalamin (vitamin B-12) level	11	11	$76.00	$18.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$280.00	$164.14

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX K0498

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

046192301 (TX)

Commercial Insurance / Payer ID Bcbs

87X763 (TX)

Hospital & Practice Group Affiliations

Healthtexas Provider Network

4001 Worth St, Dallas, TX 752461608

Practice Associates & Co-Workers

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

31 Associated Practitioners

Rhonda Choi , FNP-C

Nurse Practitioner - Family

NPI 1013428366

Family Nurse Practitioner (Certified)

Dr. Mostafa Salem , MD

Internal Medicine

NPI 1023508082

Doctor of Medicine (M.D.)

Dr. Weldon Smith , MD

Internal Medicine

NPI 1063425155

Doctor of Medicine (M.D.)

Dr. Amanda Tse , MD

Family Medicine

NPI 1083110639

Doctor of Medicine (M.D.)

Dr. Glorimar Rivera Colon , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1154636462

Doctor of Medicine (M.D.)

Dr. Susan Favour , MD

Internal Medicine

NPI 1205895562

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active April 13, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location April 13, 2017

Registered at 3417 GASTON AVE, SUITE 1000, DALLAS, TX 752462016 (Tel: 4698009000)

📍

Updated Business Mailing Address April 13, 2017

Registered at 3417 GASTON AVE, SUITE 1000, DALLAS, TX 752462016 (Tel: 4698009000)

👤

Provider Name / Credentials Updated April 13, 2017

Recorded as MICHAEL JOHNSTON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 13, 2017

Internal Medicine (License #K0498 in TX)

✅

NPI Profile Active July 05, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location July 05, 2008

Registered at 3434 SWISS AVE, SUITE 420, DALLAS, TX 752046251 (Tel: 2148285020)

📍

Updated Business Mailing Address July 05, 2008

Registered at 3434 SWISS AVE, SUITE 420, DALLAS, TX 752046251 (Tel: 2148285020)

👤

Provider Name / Credentials Updated July 05, 2008

Recorded as MICHAEL JOHNSTON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 05, 2008

Internal Medicine (License #K0498 in TX)

🟢

Initial NPI Registration & Enumeration August 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. Michael 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: 1144232265

Entity Type:

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

Enumeration Date: August 13, 2006

Last Update: April 13, 2017

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3417 Gaston Ave, Suite 1000

Dallas, TX 752462016

Phone: 4698009000

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.