Mark Keldahl MD
About this NPIWhat this record shows.
NPI 1114181658 is registered to Mark Keldahl MD, a Surgery practising at 3000 N. Halsted St., Suite 703 in Chicago, Illinois. Surgery is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mark Keldahl MD has been enumerated in the National Provider Identifier (NPI) registry since 2008.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments 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
- I20110726000565Vascular SurgeryIL
- I20200210002560Vascular SurgeryTN
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 Mark Keldahl MD accepts. To confirm in-network status with your specific health plan, contact Mark Keldahl MD directly at (773) 296-3390.
Frequently asked
Yes. NPI 1114181658 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Surgery is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
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 (773) 296-3390.
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. Mark Keldahl MD is a Type-1 individual NPI.