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

Dr. Patrick B Massey, M.D, PHD

Physical Medicine & Rehabilitation Physician in Elk Grove Village, IL · enumerated 2006 · practices at Alt-Med Research Group.

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

National Provider Identifier

1801966999

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Registry record

Entity type Individual (Type 1)

Name Dr. Patrick B Massey

Credential M.D, PHD

Sex Male

Practice address Elk Grove Village, IL, 60007

Phone (847) 923-0046

Fax (847) 923-0047

Enumeration date Nov 8, 2006

Last updated in NPPES Aug 28, 2007

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians Primary

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians Secondary

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
01635922	Other	IL	BLUE CROSS BLUE SHIELD

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

Where does Patrick Massey practice?

The practice location on file with NPPES is in Elk Grove Village, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Patrick Massey?

The National Provider Identifier (NPI) for Patrick Massey is 1801966999, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Daryl Massey Physical Therapist · Elk Grove Village, IL NPI 1255401311 Alt-Med Research Group Physical Medicine & Rehabilitation Physician · Elk Grove Village, IL NPI 1841360989

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-28.