Dr. William Ciesla M.D.
About this NPIWhat this record shows.
NPI 1265526578 is registered to Dr. William Ciesla M.D., a Internal Medicine practising at 8266 Atlee Rd, Mob #2, Suite 319 in Mechanicsville, Virginia. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. William Ciesla M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 4,539 Internal Medicine providers on file in Virginia.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20051118000283Internal MedicineVA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. William Ciesla M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. William Ciesla M.D. directly at (804) 764-7965.
Frequently asked
Yes. NPI 1265526578 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (804) 764-7965.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. William Ciesla M.D. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 4,539 Internal Medicine providers are registered in Virginia, and Dr. William Ciesla M.D. is one of them. The figure refreshes each month from the federal source.