Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marilyn Estrada Intengan, MD

Clinical Pathology/Laboratory Medicine Physician in Grand Rapids, MI · enumerated 2006.

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

National Provider Identifier

1770595563

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Registry record

Entity type Individual (Type 1)

Name Marilyn Estrada Intengan

Credential MD

Sex Female

Practice address 200 Jefferson Ave Se, Grand Rapids, MI, 49503

Phone (616) 364-6700

Fax (616) 364-4960

Enumeration date Aug 12, 2006

Last updated in NPPES Aug 20, 2007

Taxonomy & licenses

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 4301084873 (MI) 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
46540263100	Medicaid	MI	-
P00192611	Other	MI	RR MEDICARE

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Marilyn Intengan?

Marilyn Intengan is registered in NPPES with the primary taxonomy of Clinical Pathology/Laboratory Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-20.