Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Matthew William Ruble, M.D.

Psychiatry Physician in Provincetown, MA · enumerated 2005.

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

National Provider Identifier

1972501302

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew William Ruble

Credential M.D.

Sex Male

Practice address Provincetown, MA, 02657

Phone (508) 487-1459

Fax (508) 349-0966

Enumeration date Jul 11, 2005

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 208742 (MA) 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
0125181	Medicaid	MA	-

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

What specialty is Matthew Ruble?

Matthew Ruble is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Walter Healey Psychiatry Physician · Provincetown, MA NPI 1477528628 Jonathan Runge Clinical Psychologist · Provincetown, MA NPI 1689730665 Cynthia Franco Physical Therapist · Provincetown, MA NPI 1902041031 Provincetown Physical Therapy Physical Therapist · Provincetown, MA NPI 1184029183 Cbmc Counseling Mental Health Clinic/Center (Including Community Mental Health Center) · Provincetown, MA NPI 1184581316 Jennifer Shannon Mental Health Counselor · Provincetown, MA NPI 1528050812

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