Dr. Claus Hamann MD
About this NPIWhat this record shows.
NPI 1861483752 is registered to Dr. Claus Hamann MD, a Geriatric Medicine (Internal Medicine) Physician practising at 1400 Computer Dr Ste 301 in Westborough, Massachusetts. Geriatric Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Claus Hamann MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 3106594MA
Other
- 075389MA· Issued by TUFTS HEALTH PLAN
- J13619MA· Issued by BCBS MA
Source: NPPES public registry.
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. Claus Hamann MD accepts. To confirm in-network status with your specific health plan, contact Dr. Claus Hamann MD directly at (617) 420-5316.
Frequently asked
Yes. NPI 1861483752 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Geriatric Medicine (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 (617) 420-5316.
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. Claus Hamann MD is a Type-1 individual NPI.