NPPES file of Aug 9, 2026

Jerald Fredrick Sigala, M.D.

Nephrology Physician · Newport Beach, CA

Jerald Fredrick Sigala, M.D. is a nephrology physician with a practice address in Newport Beach, California, and NPI 1073605473, issued on Sep 29, 2006. Check the license (California G33210, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1073605473
Name
Jerald Fredrick Sigala
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
G33210 CA
Self-reported in NPPES; status is on the state search
Practice location
520 Superior Ave, Newport Beach, CA 92663
Phone
(949) 631-9215
Enumerated
Sep 29, 2006
Record last updated
Dec 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(949) 631-4576
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →

Also registered at 520 Superior Ave

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

  1. Greg Angstreich, MDHematology & Oncology Physician1659303873
  2. William Armstrong, MDFamily Medicine Physician1902133424
  3. Joanna Avery, MS, RDN, CDCESRegistered Dietitian1487081600
  4. Rajesh Banker, M.D.Clinical Cardiac Electrophysiology Physician1043425036
  5. Gary Carlson, MDInternal Medicine Physician1497700116
  6. John Champion, M.D.Cardiovascular Disease Physician1801980669

Verify Jerald Fredrick Sigala in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G33210    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Jerald Fredrick Sigala among 1,468 nephrology physician records in California

Jerald Fredrick Sigala, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileNo · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 77% of these records are
  • Record last updated2012 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,468 in California → Every provider in Newport Beach → Nephrology Physician nationwide →

The 8 nephrology physician records with the nearest ZIP codes

  1. Glenn Chiang, M.D.Newport Beach, CA 926631285697227
  2. Bryan Dang, M.D.Newport Beach, CA 926631619991742
  3. Sarah Lee, M.D., PH.D.Newport Beach, CA 926631700923042
  4. Paul Ozuzun, M.D.Newport Beach, CA 926631972868347
  5. Brian Wang, D.O.Newport Beach, CA 926631235591181
  6. Eric Wechsler, M.D.Newport Beach, CA 926631659469526
  7. Ratnaja Katneni, MDNewport Beach, CA 926601790887610
  8. Nathaniel Ho, M.D.Laguna Hills, CA 926531497792147

Common questions

What is Jerald Fredrick Sigala, M.D.'s NPI number?

Jerald Fredrick Sigala, M.D.'s National Provider Identifier (NPI) is 1073605473, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jerald Fredrick Sigala, M.D. located?

The NPPES record lists a practice address at 520 Superior Ave, Newport Beach, CA, 92663. Phone: (949) 631-9215. Providers update this record themselves, so call before visiting.

How can I verify Jerald Fredrick Sigala, M.D.'s license?

NPPES lists California license number G33210, 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.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.