DR. SHELDON CHAFFER II M.D.
NPI 1598727844
Internal Medicine - Nephrology in Gatesville, TX
About Dr. Sheldon Chaffer Ii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SHELDON CHAFFER II M.D. (NPI 1598727844) is an individual nephrology provider in Gatesville, Texas, licensed in Texas (L3937) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Coryell Memorial Hospital, and is a graduate of University Of Texas Medical School At Houston (2000).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Sheldon Chaffer Ii M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Sheldon Chaffer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gatesville, TX 76528
- Reassigned Medicare billing, Texas enrollment
- 78 clinicians in this Medicare group
Austin, TX 78759
- Reassigned Medicare billing, Texas enrollment
- 338 clinicians in this Medicare group
Austin, TX 78703
- Reassigned Medicare billing, Texas enrollment
- 234 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Coryell Memorial Hospital
Critical Access Hospitals · Gatesville, TXGoodall Witcher Hospital
Critical Access Hospitals · Clifton, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 76528 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sheldon Chaffer's NPI number?
The NPI number for Sheldon Chaffer is 1598727844. It was assigned to this individual provider in the NPPES registry on April 3, 2006.
Where is Sheldon Chaffer located?
Sheldon Chaffer practices at 1507 W Main St, Gatesville, TX 76528. The listed phone number is (254) 865-2166.
What is Sheldon Chaffer's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Sheldon Chaffer enrolled in Medicare?
Yes. Sheldon Chaffer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Sheldon Chaffer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sheldon Chaffer reassigns Medicare benefits to 3 organizations: Coryell County Memorial Hospital Authority (Gatesville, TX), Curana Health Medical Group LLC (Austin, TX) and Ch Specialty Services Tx PLLC (Austin, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sheldon Chaffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sheldon Chaffer accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Sheldon Chaffer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Sheldon Chaffer affiliated with any hospitals?
According to CMS data, Sheldon Chaffer is affiliated with Coryell Memorial Hospital and Goodall Witcher Hospital.
When was this NPI record last updated?
The NPPES record for Sheldon Chaffer was last updated on April 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Sheldon Chaffer II, M.D. · NPI 1598727844
Nephrology physician in Gatesville, Texas. Individual provider, active in the CMS NPPES registry since April 3, 2006.
## Identity
- **NPI:** 1598727844 (Entity type: Individual)
- **Enumerated:** April 3, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** L3937 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1507 W MAIN ST, Gatesville, TX 76528-1024
- **Phone:** (254) 865-2166
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Coryell County Memorial Hospital Authority (NPI 1528195062, Gatesville, TX); Curana Health Medical Group LLC (NPI 1255640678, Austin, TX); Ch Specialty Services Tx PLLC (NPI 1306225701, Austin, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At Houston, class of 2000
## Record status
- **NPPES last updated:** April 17, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1598727844) · Data from the CMS NPPES public registry.