Are you William L. Shaffer, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1521 S Staples St, Ste 601, Corpus Christi, TX 78404
About Dr. Shaffer
William L. Shaffer, M.D. practices nephrology in Corpus Christi, TX. William is a 1981 graduate of University of Texas Medical Branch at Galveston. Medicare claims data shows William provided 944 services to 543 patients. The services billed most often include dialysis services, 4 or more physician visits per month (20 years or older), established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and manual urinalysis test with examination using microscope, automated. The provider's National Provider Identifier (NPI) is 1972506913.
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
- (361) 887-8451
- Email not available
Practice Locations
1521 S STAPLES ST STE 601
Corpus Christi, TX 78404
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
944 services · 543 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
311 | More often than most peers in Nephrology |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
85 | More 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 |
166 | As often as other peers in Nephrology |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
120 | More often than most peers in Nephrology |
| Creatinine level to test for kidney function or muscle injury | Lab test | 82570 |
118 | As often as other peers in Nephrology |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
83 | Less often than most peers in Nephrology |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99439 |
33 | Less often than most peers in Nephrology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
28 | 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.
Other kidney specialists at this location 3
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 kidney specialists in Corpus Christi 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Texas Medical Branch at Galveston 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at University of Texas Medical Branch at Galveston 8
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, 4 or more physician visits per month (20 years or older) 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does William L. Shaffer specialize in?
William L. Shaffer is a kidney specialist in Corpus Christi, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Where is William L. Shaffer located?
William L. Shaffer is listed at 1521 S Staples St Ste 601, Corpus Christi, TX 78404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William L. Shaffer's phone number?
The number on file is (361) 887-8451. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for William L. Shaffer?
William L. Shaffer's National Provider Identifier is 1972506913. 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 William L. Shaffer train?
William L. Shaffer attended University of Texas Medical Branch at Galveston, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does William L. Shaffer have?
William L. Shaffer has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does William L. Shaffer do most often?
According to Medicare billing data, William L. Shaffer provides treatments such as dialysis services, 4 or more physician visits per month and dialysis services, 2-3 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
Is William L. Shaffer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William L. Shaffer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.