NPPES file of Aug 9, 2026

Stuart David Cataldo, MD

Internal Medicine Physician · Eureka, CA

Stuart David Cataldo, MD is an internal medicine physician with a practice address in Eureka, California, and NPI 1962507590, issued on Sep 14, 2006. Check the license (California A70399, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962507590
Name
Stuart David Cataldo
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A70399 CA
Self-reported in NPPES; status is on the state search
Practice location
2773 Harris St, Eureka, CA 95503
Phone
(707) 267-2070
Enumerated
Sep 14, 2006
Record last updated
Feb 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(707) 267-2071
Medicaid ID
00A703990 CA
Medicare enrollment
Enrolled (PECOS I20080519000759); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2773 Harris St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eva Janson, F.N.P.Family Nurse Practitioner1104940147
  2. William Koch, M.D.Obstetrics & Gynecology Physician1821063686
  3. Eric Lieberman, M.D.Obstetrics & Gynecology Physician1124094834
  4. Gena Pennington, M.D.Family Medicine Physician1831186501
  5. Karla Roman, DMDDentist1457516700

Verify Stuart David Cataldo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A70399
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.9 times the Medicare Part D claims of the average internal medicine physician in 2024

9,302 Medicare Part D claims for 565 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 653 claims were for opioids.

  1. Stuart Cataldo9,302
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium692 claims
  2. Hydrocodone-Acetaminophen414 claims
  3. Levothyroxine Sodium311 claims
  4. Losartan Potassium311 claims
  5. Amlodipine Besylate284 claims
  6. Lisinopril246 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Providence Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stuart David Cataldo among 17,696 internal medicine physician records in California

Stuart David Cataldo, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jeffrey Parker, M.D.Eureka, CA 955031689650889
  2. Gloria Abels, MDEureka, CA 955011235236662
  3. Malia Honda, M.D., M.S.Eureka, CA 955011689094989
  4. John Irvine, MDEureka, CA 955011861598419
  5. Bruce Kessler, MDEureka, CA 955011811093461
  6. Neil Kushner, MDEureka, CA 955011902905458
  7. Win Kyin, MDEureka, CA 955011902759525
  8. Eurides Lopes, M.D.Eureka, CA 955011447511803

Common questions

What is Stuart David Cataldo, MD's NPI number?

Stuart David Cataldo, MD's National Provider Identifier (NPI) is 1962507590, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stuart David Cataldo, MD located?

The NPPES record lists a practice address at 2773 Harris St, Eureka, CA, 95503. Phone: (707) 267-2070. Providers update this record themselves, so call before visiting.

How can I verify Stuart David Cataldo, MD's license?

NPPES lists California license number A70399, as entered by the provider. 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.

How much does Stuart David Cataldo, MD prescribe under Medicare Part D?

In 2024, Stuart David Cataldo, MD had 9,302 Medicare Part D claims for 565 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.