Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Carl Peter Walther, MD

Individual provider Internal Medicine Physician · NPI 1356678684

Carl Peter Walther, MD practises Nephrology in Houston, Texas. Graduated from Baylor College of Medicine in 2009, 17 years ago. Practices with Baylor College of Medicine, a 798-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
17
Trained at
Baylor College of Medicine
Licensed in
TX
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2525A Holly Hall St
Houston, TX 77054-4124
Phone: (713) 526-4243
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 6431 Fannin St, Houston, TX 77030-1501 — (713) 500-6868

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence P2557 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence P2557 (TX)

Record details

NPI number1356678684
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 6, 2009
Last updated in NPPESApril 4, 2025
Certification dateApril 4, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Baylor College Of Medicine — 798 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients23
Services billed 61 a service is one billed item, such as a visit, a test or a procedure
Average patient age61

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Harris Health Hospital · Houston, TX

Colleagues at Baylor College of Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 798 clinicians in the practice; 12 are shown here.

Other providers in Houston