Harjit Singh MD
About this NPIWhat this record shows.
NPI 1558005520 is registered to Harjit Singh MD, a Gastroenterology practising at 1501 N Cedar Crest Blvd Ste 110 in Allentown, Pennsylvania. Gastroenterology is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Harjit Singh MD has been enumerated in the National Provider Identifier (NPI) registry since 2022.
Beyond the registryWhat this record adds.
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 1,250 Gastroenterology providers on file in Pennsylvania.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
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.
Order and Referring Only
- I20250716001267GastroenterologyPA
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 Harjit Singh MD accepts. To confirm in-network status with your specific health plan, contact Harjit Singh MD directly at (610) 821-2828.
Frequently asked
Yes. NPI 1558005520 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Gastroenterology 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 (610) 821-2828.
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. Harjit Singh MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 1,250 Gastroenterology providers are registered in Pennsylvania, and Harjit Singh MD is one of them. The figure refreshes each month from the federal source.