Physician Profile
Guillermo J. Morell, MD
Unclaimed ProfileAbout Dr. Morell
Guillermo J. Morell, MD is a healthcare provider in Houston, TX specializing in nephrology. Guillermo trained at University of Puerto Rico School of Medicine, graduating in 1985. According to Medicare claims data, Guillermo cared for 119 Medicare patients across 309 services. The services billed most often include dialysis services, 2-3 physician visits per month (20 years or older), dialysis services, 4 or more physician visits per month (20 years or older), and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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) 796-0800
- Email not available
Practice Locations
6560 FANNIN ST SUITE 1532
Houston, TX 77030
Conditions Commonly Evaluated or Treated
Within Nephrology 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
Most searched conditions
Acid-base disorders
Anatomical conditions
Autoimmune conditions
Blood disorders
Blood pressure
Cysts and growths
Diabetes complications
Dialysis complications
Electrolyte disorders
Fluid retention
Genetic disorders
Hormone disorders
Infections
Inflammatory conditions
Kidney damage
Kidney failure
Kidney filter diseases
Lab abnormalities
Metabolic disorders
Multi-organ conditions
Structural kidney issues
Symptoms
Urine abnormalities
Urine symptoms
Vascular conditions
Vascular kidney issues
Procedures & services
Most searched procedures
Consultations
Diagnostic tests
Diagnostics
Dialysis
Dialysis access
- Dialysis Access Physical Exam
- Dialysis Catheter Removal
- Dialysis Fistula Repair
- Temporary Dialysis Line Placement
Diet and nutrition
Imaging
Infusions
Interventional procedures
Lab tests
- 24-hour urine test
- Comprehensive Metabolic Panel
- Kidney Function Blood Test
- Parathyroid hormone monitoring
- Urine protein check
- Urine sediment test
Medication management
- Active Vitamin D Therapy
- Resistant Blood Pressure Medication Adjustment
- Steroid Therapy For Kidney Inflammation
Medication therapy
- Acid reducer treatment for kidneys
- Phosphate binder therapy
- Potassium lowering treatment
- Red blood cell booster injections
- Water pill adjustment
Patient education
Prevention
Procedures
Specialized therapies
Supportive care
Surgical procedures
Transplant care
Vascular access
Procedures Most Often Billed to Medicare
309 services · 119 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
80 | More often than most peers in Nephrology |
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
67 | Less often than most peers in Nephrology |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
28 | Less often than most peers in Nephrology |
| Dialysis services, 1 physician visit per month (20 years or older) | Treatment | 90962 |
18 | Less often than most peers in Nephrology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
55 | Less often than most peers in Nephrology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
35 | Less often than most peers in Nephrology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
26 | Less often than most peers in Nephrology |
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 4
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 kidney specialists in Houston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Puerto Rico School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at University of Puerto Rico School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, 2-3 physician visits per month (20 years or older) 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Dr. Morell specialize in?
Dr. Morell is a kidney specialist in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Where is Dr. Morell located?
Dr. Morell is listed at 6560 Fannin St Suite 1532, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Morell's phone number?
The number on file is (713) 796-0800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Morell's NPI number?
Dr. Morell's National Provider Identifier is 1346238268. 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. Morell go to medical school?
Dr. Morell attended University of Puerto Rico School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Morell been practicing?
Dr. Morell has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Morell do most often?
According to Medicare billing data, Dr. Morell provides treatments such as dialysis services, 2-3 physician visits per month and dialysis services, 4 or more physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Morell confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Morell. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.