NPI Portal NPI Lookup & Verification

Dr. Daniel J Casper, MD, FACS

Dr. Daniel J Casper is a Specialist provider (Specialist) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1740403617 since 2007. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1740403617
Entity type Individual (Type 1)
Name Dr. Daniel J Casper
Credential MD, FACS
Sex Male
Practice address Pasadena, CA, 91105
Phone 6267967158
Fax 6267968081
Enumeration date 2007-04-10
Last updated in NPPES 2007-07-08

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
174400000X Specialist Primary G63100 CA

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

Copy-ready billing details
Provider: Daniel Casper, MD, FACS
NPI: 1740403617
Taxonomy: 174400000X (Specialist)
Address: Pasadena, CA, 91105

Other providers at this practice address

NPI Name Type Specialty Location
1144220815 George Matsuda Individual Obstetrics & Gynecology Physician Pasadena, CA
1134129711 James Macer Individual Obstetrics & Gynecology Physician Pasadena, CA
1265433155 Wilbert Henneberg Individual Obstetrics & Gynecology Physician Pasadena, CA
1659372530 Laura Sirott Individual Obstetrics & Gynecology Physician Pasadena, CA
1396747754 Valerie Myers Individual Obstetrics & Gynecology Physician Pasadena, CA
1528051984 Syeda Ali Individual Nephrology Physician Pasadena, CA
1770573941 Joseph Li Individual Obstetrics & Gynecology Physician Pasadena, CA
1841277498 R. Clark Davis, M.D., Inc. Organization Specialist Pasadena, CA

Verify this record

Cross-check NPI 1740403617 against the authoritative CMS record: view Dr. Daniel J Casper on the official NPPES registry .

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 or validate an NPI number.

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 Daniel Casper?
Daniel Casper is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2007-07-08.