Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark I Hertz, RPH
Pharmacist in Hampton Bays, NY · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780916817
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Registry record
Entity type Individual (Type 1)
Name Mark I Hertz
Credential RPH
Sex Male
Practice address 39 W Montauk Hwy Ste 4, Hampton Bays, NY, 11946
Phone (631) 728-4030
Fax (631) 728-0627
Enumeration date Jan 29, 2010
Last updated in NPPES Jan 29, 2010
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00619329 | 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.
Frequently asked questions
Is NPI 1780916817 active?
Yes, as of the latest NPPES snapshot, NPI 1780916817 is active (record last updated 2010-01-29).
How do I verify Mark Hertz's NPI record?
Cross-check NPI 1780916817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-29.