Lauren Merz MD
About this NPIWhat this record shows.
NPI 1073176939 is registered to Lauren Merz MD, a Hematology (Internal Medicine) Physician practising at 1500 E Medical Center Dr in Ann Arbor, Michigan. Hematology (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Lauren Merz MD has been enumerated in the National Provider Identifier (NPI) registry since 2019.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 2 PECOS enrollment records (each with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 61 Hematology (Internal Medicine) Physician providers on file in Michigan.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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
- I20231101003026Internal MedicineMA
- I20250827001322HematologyMI
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 Lauren Merz MD accepts. To confirm in-network status with your specific health plan, contact Lauren Merz MD directly at (734) 936-4000.
Frequently asked
Yes. NPI 1073176939 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology (Internal Medicine) 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 (734) 936-4000.
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. Lauren Merz MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 61 Hematology (Internal Medicine) Physician providers are registered in Michigan, and Lauren Merz MD is one of them. The figure refreshes each month from the federal source.