Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Upstate Lung and Critical Care Specialists PC

Pulmonary Disease Physician in Union, SC · enumerated 2006 · authorized official Gregory Feldman, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033141098

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Registry record

Entity type Organization (Type 2)

Legal business name Upstate Lung and Critical Care Specialists PC

Practice address 1005 Thompson Road, Union, SC, 29379

Phone (864) 427-0278

Enumeration date Jul 7, 2006

Last updated in NPPES May 13, 2015

Taxonomy & classification

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 15836 (SC) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Gregory Feldman

Title President

Phone (864) 573-6320

Other identifiers

Identifier	Type	State	Issuer
GP3212	Medicaid	SC	-
CB6976	Other	-	MEDICARE RR

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Upstate Lung and Critical Care Specialists PC located?

The practice location on file with NPPES is in Union, SC.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-05-13. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-13.