Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Howard Graham, MD

Psychiatry Physician in Aurora, CO · enumerated 2005.

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

National Provider Identifier

1588668099

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Registry record

Entity type Individual (Type 1)

Name Dr. William Howard Graham

Credential MD

Sex Male

Practice address 2600 S Parker Rd, Bldg 2 Suite 221, Aurora, CO, 80014

Phone (303) 752-2082

Enumeration date Jun 13, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 16235 (CO) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does William Graham practice?

The practice location on file with NPPES is in Aurora, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Graham?

The National Provider Identifier (NPI) for William Graham is 1588668099, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Kenneth D Krause MD PC General Practice Physician · Aurora, CO NPI 1023015435 Myra Pauley Nurse Practitioner · Aurora, CO NPI 1215926787 Kathryn Weingardt Professional Counselor · Aurora, CO NPI 1518940493 Sayed Zaki Psychiatry Physician · Aurora, CO NPI 1144251000 Ruth Ross Professional Counselor · Aurora, CO NPI 1750491197 Evans Rehab and Pain Management Physical Medicine & Rehabilitation Physician · Aurora, CO NPI 1457455735 Kenneth Krause Psychiatry Physician · Aurora, CO NPI 1134290349 Nancy Aaron Clinical Social Worker · Aurora, CO NPI 1467517037

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