Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Fayu Chen, M.D.

Anatomic Pathology & Clinical Pathology Physician in Royal Oak, MI · enumerated 2006.

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

National Provider Identifier

1861463317

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Registry record

Entity type Individual (Type 1)

Name Mark Fayu Chen

Credential M.D.

Sex Male

Practice address 3601 W 13 Mile Rd, Royal Oak, MI, 48073

Phone (248) 898-9060

Enumeration date Jan 31, 2006

Last updated in NPPES Feb 16, 2026

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 5315027242 (MI) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 4301081074 (MI) Primary

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

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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 Mark Chen?

Mark Chen is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Cheryl Grain Nurse Practitioner · Royal Oak, MI NPI 1437155538 Thomas Schwann Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Royal Oak, MI NPI 1134125727 Costa Andreou Cardiovascular Disease Physician · Royal Oak, MI NPI 1114925419 Naushaba Mohiuddin Nephrology Physician · Royal Oak, MI NPI 1699773879 Melissa Marback Obstetrics & Gynecology Physician · Royal Oak, MI NPI 1083606586 Douglas Horstmanshof Cardiovascular Disease Physician · Royal Oak, MI NPI 1881688760 Patrick Pettengill Emergency Medicine Physician · Royal Oak, MI NPI 1639163488 Yvonne Posey Chemical Pathology Physician · Royal Oak, MI NPI 1467447151

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-16.