Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven R. Cobb, M.D.

Diagnostic Radiology Physician in Rancho Cucamonga, CA · enumerated 2006.

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

National Provider Identifier

1770542110

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Registry record

Entity type Individual (Type 1)

Name Dr. Steven R. Cobb

Credential M.D.

Sex Male

Practice address 8599 Haven Ave., Suite 300, Rancho Cucamonga, CA, 91730

Phone (909) 620-8180

Fax (909) 919-7288

Enumeration date Mar 23, 2006

Last updated in NPPES Mar 29, 2012

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G37838 (CA) Primary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License G37838 (CA) 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
00G378380	Medicaid	CA	-
CG1263	Other	CA	RAILROAD MEDICARE

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 Steven Cobb?

Steven Cobb is registered in NPPES with the primary taxonomy of Diagnostic Radiology 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 →

Haven Family Medical Center Inc. Multi-Specialty Clinic/Center · Rancho Cucamonga, CA NPI 1962409474 Curtis Handler Diagnostic Radiology Physician · Rancho Cucamongo, CA NPI 1649255290 Wilbur Sims Diagnostic Radiology Physician · Rancho Cucamonga, CA NPI 1346228616 Fred Shu Diagnostic Radiology Physician · Rancho Cucamonga, CA NPI 1568435717 Alfonso Carrillo Diagnostic Radiology Physician · Rancho Cucamonga, CA NPI 1316906894 Fahim Gheybi Diagnostic Radiology Physician · Rancho Cucamonga, CA NPI 1730148214 Joel Block Diagnostic Radiology Physician · Rancho Cucamongo, CA NPI 1225098189 Sherman Rhee Diagnostic Radiology Physician · Rancho Cucamonga, CA NPI 1568481042

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-29.