Cathy Alessi, M.D.
Internal Medicine Physician · North Hills, CA
Cathy Alessi, M.D. is an internal medicine physician with a practice address in North Hills, California, and NPI 1134224983, issued on Sep 14, 2006. Check the license on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cathy Alessi
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 16111 Plummer St, North Hills, CA 91343
- Phone
- (818) 895-9311
- Enumerated
- Sep 14, 2006
- Entity
- Type 1 · individual
Also registered at 16111 Plummer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara AhdootStudent in an Organized Health Care Education/Training Program1225786981
- Allen AmirantPharmacotherapy Pharmacist1639273659
- Leann Arjona, MSWSocial Worker1376810036
- Jeffrey Asano, D.D.SStudent in an Organized Health Care Education/Training Program1245734334
- Rajnikant Bakhda, MDDiagnostic Radiology Physician1265539282
- Joellen Baur, LCSWClinical Social Worker1922024322
Verify Cathy Alessi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
13 internal medicine physician records list a North Hills practice address
They are 13 of the 806 NPPES records with a North Hills practice address, and 20,403 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13 in North Hills → All 20,403 in California → Every provider in North Hills →
Other internal medicine physician records in California
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- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Cathy Alessi, M.D.'s NPI number?
Cathy Alessi, M.D.'s National Provider Identifier (NPI) is 1134224983, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Alessi, M.D. located?
The NPPES record lists a practice address at 16111 Plummer St, North Hills, CA, 91343. Phone: (818) 895-9311. Providers update this record themselves, so call before visiting.
How can I verify Cathy Alessi, M.D.'s license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.