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Edit this profileAt a glance
- 6565 Fannin St # M204, Houston, TX 77030
About Dr. Marker
Based in Houston, TX, David R. Marker, MD is listed in the NPI registry under diagnostic radiology. David graduated from Johns Hopkins University School of Medicine in 2010. According to Medicare claims data, David cared for 2,983 Medicare patients across 3,227 services. The services billed most often include x-ray of chest, 1 view, x-ray of chest, 2 views, and ct scan of abdomen and pelvis with contrast. NPI 1427375138 identifies this record in the national registry.
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
- (713) 441-7558
- Email not available
Practice Locations
6565 FANNIN ST # M204
Houston, TX 77030
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology 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
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
3,227 services · 2,983 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Drainage of fluid from abdominal cavity using imaging guidance | Procedure | 49083 |
187 | More than most peers in Diagnostic Radiology |
| Aspiration of fluid from chest cavity using imaging guidance | Procedure | 32555 |
173 | More than most peers in Diagnostic Radiology |
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
51 | More often than most peers in Diagnostic Radiology |
| Biopsy and aspiration of bone marrow sample for diagnosis | Procedure | 38222 |
45 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
492 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
277 | More often than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
262 | More often than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
259 | More than most peers in Diagnostic Radiology |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
128 | More often than most peers in Diagnostic Radiology |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
125 | More often than most peers in Diagnostic Radiology |
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.
Other radiologists at this location 2
Same specialty, same street address — most likely the same department or group.
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 radiologists in Houston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Johns Hopkins University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Drainage of fluid from abdominal cavity using imaging guidance 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Marker?
Dr. Marker is a radiologist in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
What is Dr. Marker's address?
Dr. Marker is listed at 6565 Fannin St # M204, Houston, TX 77030. 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. Marker?
The number on file is (713) 441-7558. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Marker's NPI number?
Dr. Marker's National Provider Identifier is 1427375138. 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. Marker train?
Dr. Marker attended Johns Hopkins University School of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marker been practicing?
Dr. Marker has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Marker perform?
According to Medicare billing data, Dr. Marker performs procedures including drainage of fluid from abdominal cavity using imaging guidance, aspiration of fluid from chest cavity using imaging guidance and fine needle aspiration biopsy using ultrasound guidance, first growth; reads or performs imaging such as x-ray of chest, 1 view and x-ray of chest, 2 views; provides treatments such as use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes and ultrasound study of one arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marker. If this is you, claiming it is free.
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