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

Dr. Walter R Cayce, MD, MPH

Preventive Medicine/Occupational Environmental Medicine Physician in Ajo, AZ · enumerated 2006.

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

National Provider Identifier

1528034626

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Walter R Cayce

Credential MD, MPH

Sex Male

Practice address Ajo, AZ, 85321

Phone (520) 381-5651

Enumeration date Feb 28, 2006

Last updated in NPPES Jan 11, 2016

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

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 35-047652 (OH) Secondary

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 15242 (AZ) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 15242 (AZ) Secondary

207QA0505X Adult Medicine Physician Allopathic & Osteopathic Physicians · License 15242 (AZ) 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
708172	Medicaid	AZ	-

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 Walter Cayce?

Walter Cayce is registered in NPPES with the primary taxonomy of Preventive Medicine/Occupational Environmental Medicine 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 →

Brian Jones Physical Therapist · Ajo, AZ NPI 1720063282 Carol Johnson Family Medicine Physician · Ajo, AZ NPI 1811957145 Gorky Herrera Psychiatry Physician · Ajo, AZ NPI 1740222025 Desert Senita Community Health Center Federally Qualified Health Center (FQHC) · Ajo, AZ NPI 1114037496 Jeffrey Lavoy Family Medicine Physician · Ajo, AZ NPI 1013002518 Mary Kehl Physician Assistant · Ajo, AZ NPI 1225110224 Ellen Pritchett Registered Dietitian · Ajo, AZ NPI 1003999426 Desert Senita Community Health Center Federally Qualified Health Center (FQHC) · Ajo, AZ NPI 1447388046

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-11.