Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Diego Hernan Ratzlaff, PA

Physician Assistant in Inwood, NY · enumerated 2009.

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

National Provider Identifier

1629212790

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Diego Hernan Ratzlaff

Credential PA

Sex Male

Practice address 271 Doughty Blvd, Inwood, NY, 11096

Phone (516) 371-6884

Fax (516) 371-6083

Enumeration date Apr 21, 2009

Last updated in NPPES Apr 21, 2009

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 013174 (NY) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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

How do I verify Diego Ratzlaff's NPI record?

Cross-check NPI 1629212790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1629212790 active?

Yes, as of the latest NPPES snapshot, NPI 1629212790 is active (record last updated 2009-04-21).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-21.