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Edit this profileAt a glance
- 1105 Central Expy N Ste 235, Allen, TX 75013
About Dr. Jennings
Mark B. Jennings, MD is a healthcare provider in Allen, TX specializing in internal medicine. Mark trained at University of Oklahoma College of Medicine, graduating in 2009. Mark is also listed as specializing in student in an organized health care education program. Medicare claims data shows Mark provided 114,882 services to 1,728 patients. The services billed most often include injection, ferric carboxymaltose, 1 mg, low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, and injection, nivolumab, 1 mg. This provider record is associated with NPI 1336379783.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (972) 747-6042
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1105 CENTRAL EXPY N STE 235
Allen, TX 75013
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer Prevention
Cancer risk
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
Heart health
Infectious Disease
Infectious disease
Kidney health
Lifestyle & wellness
Lifestyle health
Longevity
Metabolic & Lifestyle
Occupational health
Occupational Health
Rashes & allergy
Sexual Health
Sexual health
Substance use
Travel health
Wellness and energy
Workplace health
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Addiction & habits
Cancer screening
Cancer Screening
Checkups & exams
Chronic illness
Diagnostics & screening
Environmental health
Fitness & body composition
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart & circulation
Heart health
Hospital-based procedures
Imaging referral
Immunizations
Infection & Microbiology Tests
- STI and STD Screening
- H. Pylori Breath Test
Lifestyle & Prevention
Longevity
Lower endoscopy
Lungs & Breathing
Metabolic & Weight
Metabolic health
Occupational health
Occupational Health
Office Procedures
Preventive and evaluation
- Preoperative medical clearance
- Medication management
- Post-hospital transitional care
Preventive imaging
Preventive screening
Routine Blood Tests
Screening & labs
Screening and diagnostic testing
- Blood pressure screening
- Cancer screening and prevention planning
- Diabetes and prediabetes screening
- EKG
- Spirometry
Screenings & Diagnostics
Travel Health
Travel medicine
Wellness
Wellness & Screening
Workplace health
Skin growths
Sleep
Most searched procedures
Bones & Joints
Brain and nerves
Digestive
- Endoscopy
Exams & Consultations
Lab tests
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
Pain management
Preventive & Routine Care
Sexual health
Procedures Most Often Billed to Medicare
114,882 services · 1,728 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
758 | More than most peers in Internal Medicine |
| Injection, ferric carboxymaltose, 1 mg | Drug given | J1439 |
14,250 | Less often than most peers in Internal Medicine |
| Injection, nivolumab, 1 mg | Drug given | J9299 |
12,780 | Too few peers to compare |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
11,600 | As often as other peers in Internal Medicine |
| Injection, granisetron, extended-release, 0.1 mg | Drug given | J1627 |
8,700 | Too few peers to compare |
| Injection, oxaliplatin, 0.5 mg | Drug given | J9263 |
8,000 | Too few peers to compare |
| Injection, daratumumab, 10 mg and hyaluronidase-fihj | Drug given | J9144 |
7,380 | Too few peers to compare |
| Injection, paclitaxel, 1 mg | Drug given | J9267 |
6,968 | Too few peers to compare |
| Injection, aprepitant, 1 mg | Drug given | J0185 |
4,810 | Too few peers to compare |
| Injection, fosaprepitant, 1 mg | Drug given | J1453 |
3,300 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internists in Allen 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Oklahoma College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at University of Oklahoma College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Jennings?
Dr. Jennings is an internist in Allen, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Jennings's address?
Dr. Jennings is listed at 1105 Central Expy N Ste 235, Allen, TX 75013. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Jennings?
The number on file is (972) 747-6042. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Jennings?
Dr. Jennings's National Provider Identifier is 1336379783. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Jennings train?
Dr. Jennings attended University of Oklahoma College of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Jennings have?
Dr. Jennings has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Jennings perform?
According to Medicare billing data, Dr. Jennings performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Jennings's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Jennings. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.