Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael S Buchholtz MD PC

Hematology & Oncology Physician in Greenlawn, NY · enumerated 2006 · authorized official Michael Buchholtz, Owner.

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

National Provider Identifier

1104893932

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Registry record

Entity type Organization (Type 2)

Legal business name Michael S Buchholtz MD PC

Practice address 270 Pulaski Road, Suite D, Greenlawn, NY, 11740

Phone (631) 427-6060

Fax (631) 549-4858

Enumeration date Mar 1, 2006

Last updated in NPPES Nov 3, 2008

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Buchholtz

Title Owner

Phone (631) 427-6060

Other identifiers

Identifier	Type	State	Issuer
02221227	Medicaid	NY	-

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 Michael S Buchholtz MD PC located?

The practice location on file with NPPES is in Greenlawn, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-11-03. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Andrea Smoller Social Worker · Greenlawn, NY NPI 1447583091

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-03.