John Platt MD
About this NPIWhat this record shows.
NPI 1588638431 is registered to John Platt MD, a Internal Medicine practising at 385 Southbridge St in Auburn, Massachusetts. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. John Platt MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
This record carries 18 secondary identifiers beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. 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 7,638 Internal Medicine providers on file in Massachusetts.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 27113· Issued by CHILDRENS MEDICAL SECURIT
- 784175· Issued by MVP HEALTH CARE
- 9900153· Issued by FALLON COMMUNITY HEALTH P
- J02589· Issued by BLUE CARE ELECT
- J02589· Issued by BLUE SHIELD HMO BLUE
- 7387317· Issued by AETNA US HEALTHCARE
- 0401693· Issued by EVERCARE
- AA1242· Issued by HARVARD PILGRIM HEALTHCAR
- J02589· Issued by MEDICARE B
- 2411249· Issued by CIGNA HEALTH PLAN
- 27113· Issued by HEALTHY START
- J02589· Issued by BLUE SHIELD INDEMNITY
- 042472266· Issued by HEALTHCARE VALUE MANAGEME
- 918144· Issued by FIRST HEALTH
- 042472266· Issued by ONE HEALTH PLAN
- 042472266· Issued by PRIVATE HEALTHCARE SYSTEM
- 3087689· Issued by MEDICAID WELFARE
Medicaid
- 3087689MA
Source: NPPES public registry.
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
- I20050324000477Internal MedicineMA
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 John Platt MD accepts. To confirm in-network status with your specific health plan, contact John Platt MD directly at (508) 721-1172.
Frequently asked
Yes. NPI 1588638431 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 (508) 721-1172.
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. John Platt MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 7,638 Internal Medicine providers are registered in Massachusetts, and John Platt MD is one of them. The figure refreshes each month from the federal source.