Active NPI 1528077112 Individual Practitioner Male Practitioner

Dr. John Darren Clark , MD

Internal Medicine • Arlington, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Clark, MD is a certified Internal Medicine practicing in Arlington, TX. With approximately 30 years of clinical experience since graduating from University Of Texas Southwestern Medical School At Dallas in 1996, Dr. Clark delivers high-quality medical care to the local community at 800 W RANDOL MILL RD STE 2300.

Dr. Clark maintains professional affiliations with Questcare Matrix Pllc, Questcare Hospitalists Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

800 W Randol Mill Rd Ste 2300

Arlington, TX 760122504

Telephone 8662021032

Fax 8175486649

Medicare Profile & Education

Medical School

University Of Texas Southwestern Medical School At Dallas

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Arlington, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

30 Yrs +3.7 yrs vs City Avg

City Avg: 26.3 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

104 Specialists

Practicing in Arlington, TX (9538 Statewide)

Telehealth Adoption Rate

15.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Clark (30 Years) 30 Yrs

Arlington Specialty Average (26.3 Years) 26.3 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	971	187	$373.00	$76.65
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	458	86	$362.00	$105.11
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	364	93	$536.00	$114.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	118	113	$1042.00	$168.01
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	54	25	$317.19	$104.53
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	44	29	$526.82	$149.78
99306 Initial nursing facility visit, typically 45 minutes per day	40	40	$655.70	$177.73
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	27	27	$529.00	$129.60
99239 Hospital discharge day management, more than 30 minutes	20	19	$685.00	$110.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	752	173	$536.00	$116.63
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	746	172	$372.43	$77.53
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	502	95	$362.00	$104.61
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	144	134	$1042.00	$169.99
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	118	29	$362.00	$104.61
99239 Hospital discharge day management, more than 30 minutes	50	49	$685.00	$112.26
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	47	44	$529.00	$130.62
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	34	22	$535.00	$150.30
99306 Initial nursing facility visit, typically 45 minutes per day	24	23	$667.00	$178.65
99291 Critical care, first 30-74 minutes	23	11	$1157.00	$208.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,295	299	$536.00	$99.96
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	475	66	$535.00	$131.17
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	251	102	$373.00	$69.83
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	142	130	$1042.00	$193.63
99239 Hospital discharge day management, more than 30 minutes	58	58	$685.00	$103.01
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	52	16	$362.00	$89.05
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	47	39	$529.00	$125.96
99291 Critical care, first 30-74 minutes	41	17	$1157.00	$213.25
99497 Advance care planning, first 30 minutes	12	12	$446.67	$76.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	849	253	$536.00	$102.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	512	160	$373.00	$71.18
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	395	68	$535.00	$134.13
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	149	143	$1042.00	$198.30
99239 Hospital discharge day management, more than 30 minutes	70	70	$685.00	$105.56
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	69	53	$529.00	$128.55
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	67	22	$362.00	$90.45
99291 Critical care, first 30-74 minutes	35	17	$1157.00	$217.24
99497 Advance care planning, first 30 minutes	34	33	$448.65	$77.87
99306 Initial nursing facility visit, typically 45 minutes per day	13	13	$667.00	$165.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	766	192	$373.00	$71.95
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	565	200	$536.00	$104.20
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	138	33	$331.00	$91.09
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	119	114	$1042.00	$202.74
99239 Hospital discharge day management, more than 30 minutes	91	90	$685.00	$107.30
99291 Critical care, first 30-74 minutes	56	28	$1157.00	$222.29
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	43	19	$450.00	$134.18
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	39	11	$227.00	$68.95
99306 Initial nursing facility visit, typically 45 minutes per day	37	30	$532.00	$166.75
99497 Advance care planning, first 30 minutes	35	35	$413.00	$79.68
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	21	21	$46.00	$8.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,097	266	$373.00	$72.49
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	439	198	$536.00	$103.47
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	370	74	$331.00	$91.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	154	138	$1042.00	$201.55
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	104	46	$450.00	$135.13
99239 Hospital discharge day management, more than 30 minutes	93	88	$685.00	$106.91
99306 Initial nursing facility visit, typically 45 minutes per day	85	71	$532.00	$166.43
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	58	16	$227.00	$68.64
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	39	39	$46.00	$8.50
99291 Critical care, first 30-74 minutes	35	24	$1157.00	$221.52
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	19	$708.00	$136.30
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	15	14	$143.00	$26.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	961	224	$373.00	$69.97
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	321	157	$536.00	$100.24
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	234	72	$331.00	$87.97
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	147	134	$1042.00	$194.88
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	114	53	$450.00	$130.82
99306 Initial nursing facility visit, typically 45 minutes per day	97	82	$532.00	$160.56
99239 Hospital discharge day management, more than 30 minutes	77	77	$685.00	$103.72
99497 Advance care planning, first 30 minutes	30	29	$413.00	$76.15
99316 Nursing facility discharge management, more than 30 minutes	19	18	$390.00	$101.94
99291 Critical care, first 30-74 minutes	18	12	$1157.00	$213.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	861	228	$344.03	$66.71
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	461	188	$491.66	$96.38
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	226	56	$432.53	$84.81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	168	163	$974.00	$188.27
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	103	45	$641.07	$126.22
99239 Hospital discharge day management, more than 30 minutes	85	84	$627.41	$99.71
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	75	72	$43.52	$7.90
99306 Initial nursing facility visit, typically 45 minutes per day	65	61	$797.97	$154.95
99291 Critical care, first 30-74 minutes	58	42	$1097.12	$202.21
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	46	18	$337.00	$64.19
99316 Nursing facility discharge management, more than 30 minutes	20	16	$333.80	$98.22
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional	18	17	$128.22	$25.16

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX M9928

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License AR E2554

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

140285001 (AR)

Medicaid State Provider ID

198329802 (TX)

Medicaid State Provider ID

198329803 (TX)

Medicaid State Provider ID

198329801 (TX)

Hospital & Practice Group Affiliations

Questcare Hospitalists Pllc

791 S Main St, Keller, TX 762484905

Phone: 4697131145

Questcare Matrix Pllc

5600 Davis Blvd, Richland Hills, TX 761806464

Phone: 9549395000

Practice Associates & Co-Workers

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

3 Associated Practitioners

Dr. Thang Le , MD

Internal Medicine

NPI 1013948900

Doctor of Medicine (M.D.)

Dr. Beshir Ahmed Ali , MD

Internal Medicine

NPI 1275723025

Doctor of Medicine (M.D.)

Dr. Lakshmi Sakthivelnathan , MD

Internal Medicine

NPI 1982808564

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 May 26, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location May 26, 2009

Registered at 800 W RANDOL MILL RD STE 2300, ARLINGTON, TX 760122504 (Tel: 8662021032)

📍

Updated Business Mailing Address May 26, 2009

Registered at 800 W RANDOL MILL RD STE 2300, ARLINGTON, TX 760122504 (Tel: 8662021032)

👤

Provider Name / Credentials Updated May 26, 2009

Recorded as JOHN CLARK, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 26, 2009

Internal Medicine (License #M9928 in TX)

🟢

Initial NPI Registration & Enumeration August 05, 2006

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: 1528077112

Entity Type:

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

Enumeration Date: August 05, 2006

Last Update: May 26, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

800 W Randol Mill Rd Ste 2300

Arlington, TX 760122504

Phone: 8662021032

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.