Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael L Innerfield, MD

Interventional Cardiology Physician in West Nyack, NY · enumerated 2006 · practices at Crystal Run Healthcare Physicians LLP.

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

National Provider Identifier

1366528739

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael L Innerfield

Credential MD

Sex Male

Practice address 2 Centerock Rd, West Nyack, NY, 10994

Phone (845) 703-6999

Fax (845) 703-6297

Enumeration date Oct 28, 2006

Last updated in NPPES Sep 22, 2020

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 151314 (NY) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 151314 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01073707	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

Is NPI 1366528739 active?

Yes, as of the latest NPPES snapshot, NPI 1366528739 is active (record last updated 2020-09-22).

How do I verify Michael Innerfield's NPI record?

Cross-check NPI 1366528739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-22.