Physician Profile
Unclaimed ProfileAbout SHAFFER
William Lee Shaffer, M.D. practises nephrology in Corpus Christi, TX. William is a 1981 graduate of University of Texas Medical Branch at Galveston.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Shaffer specialise in?
Dr. Shaffer is a nephrology in Corpus Christi, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Where is Dr. Shaffer located?
Dr. 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 Dr. Shaffer's phone number?
The number on file is (361) 887-8451. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Shaffer?
Dr. 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 Dr. Shaffer go to medical school?
Dr. 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 Dr. Shaffer have?
Dr. Shaffer has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Shaffer do most often?
According to Medicare billing data, Dr. 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 Dr. Shaffer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Shaffer. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (361) 887-8451
- Email not available
Practice Locations
1521 S STAPLES ST STE 601
Corpus Christi, TX 78404
Procedures Most Often Billed to Medicare
944 services · 543 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
311 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
85 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
166 |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
120 |
| Creatinine level to test for kidney function or muscle injury | Lab test | 82570 |
118 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
83 |
| 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 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
28 |
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 nephrology 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 nephrology 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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.