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About this NPIWhat this record shows.
NPI 1689699019 is registered to Dr. Donald Zimmerman MD, a Pediatric Endocrinology Physician practising at 2300 N Childrens Plz, Children's Memorial Hospital Box 54 in Chicago, Illinois. Pediatric Endocrinology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Donald Zimmerman MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Donald Zimmerman MD accepts. To confirm in-network status with your specific health plan, contact Dr. Donald Zimmerman MD directly at (773) 327-7740.
Frequently asked
Yes. NPI 1689699019 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatric Endocrinology Physician 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) 327-7740.
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. Donald Zimmerman MD is a Type-1 individual NPI.
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