Dr. Michael S Basch, M.D.

Dr. Michael S Basch is a Internal Medicine Physician provider (Internal Medicine) practicing in Temecula, CA, registered in the NPPES registry with NPI 1790889350 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1790889350
Entity type	Individual (Type 1)
Name	Dr. Michael S Basch
Credential	M.D.
Sex	Male
Practice address	Temecula, CA, 92590
Phone	9517191111
Fax	9517191122
Enumeration date	2006-09-12
Last updated in NPPES	2013-07-02

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207R00000X	Internal Medicine Physician	Primary	015430	CA

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
3408935	Medicaid	CA	—
201922288	Other	CA	TAX IDENTIFICATION NUMBER

Copy-ready billing details

Provider: Michael Basch, M.D.
NPI: 1790889350
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: Temecula, CA, 92590

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1023003811	All Family Healthcare Corp	Organization	Family Medicine Physician	Temecula, CA
1053461178	Inpatient Physicians Network,Inc	Organization	Internal Medicine Physician	Temecula, CA

Verify this record

Cross-check NPI 1790889350 against the authoritative CMS record: view Dr. Michael S Basch 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

What specialty is Michael Basch?

Michael Basch is registered in NPPES with the primary taxonomy of Internal 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-07-02.