NPI Portal NPI Lookup & Verification

Carl J Hauser, M.D.

Carl J Hauser is a Surgical Critical Care Physician provider (Surgery) practicing in Sonora, CA, registered in the NPPES registry with NPI 1831116425 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1831116425
Entity type Individual (Type 1)
Name Carl J Hauser
Credential M.D.
Sex Male
Practice address 1000 GREENLEY RD, Sonora, CA, 95370
Phone 6176329929
Enumeration date 2006-07-17
Last updated in NPPES 2024-08-27

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2086S0102X Surgical Critical Care Physician Secondary 229518 MA
2086S0102X Surgical Critical Care Physician Primary G40233 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: Carl Hauser, M.D.
NPI: 1831116425
Taxonomy: 2086S0102X (Surgical Critical Care Physician)
Address: 1000 GREENLEY RD, Sonora, CA, 95370

Other providers at this practice address

NPI Name Type Specialty Location
1770586380 Bay Area Rehabilitation Medical Group Organization Physical Medicine & Rehabilitation Physician Sonora, CA
1861486813 Penny Ablin Individual Emergency Medicine Physician Sonora, CA
1780673376 Sonora Community Hospital Organization General Acute Care Hospital Sonora, CA
1992796593 Sonora Community Hospital Organization Medicare Defined Swing Bed Hospital Unit Sonora, CA
1801887401 Sonora Community Hospital Organization Skilled Nursing Facility Sonora, CA
1477537231 Tuolumne Radiology Group Inc Organization Diagnostic Radiology Physician Sonora, CA
1366427866 James Wilson Individual Diagnostic Radiology Physician Sonora, CA
1184602989 Sheila Monaghan Individual Family Nurse Practitioner Sonora, CA

Verify this record

Cross-check NPI 1831116425 against the authoritative CMS record: view Carl J Hauser 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 Carl Hauser?
Carl Hauser is registered in NPPES with the primary taxonomy of Surgical Critical Care Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-08-27.