NPPES file of Aug 9, 2026

Lizann Mercado Ponferrada, CRNA

Certified Registered Nurse Anesthetist · San Diego, CA

Lizann Mercado Ponferrada, CRNA is a certified registered nurse anesthetist with a practice address in San Diego, California, and NPI 1679131650, issued on Jun 4, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1679131650
Name
Lizann Mercado Ponferrada
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
AP142348 TX
819085 TX
0024196052 VA
Self-reported in NPPES; status is on the state search
Practice location
2841 Rendova RD, San Diego, CA 92155
Phone
(619) 522-2715
Enumerated
Jun 4, 2019
Record last updated
Aug 6, 2026
Medicare enrollment
Enrolled (PECOS I20260319000215); accepts Medicare assignment
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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8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →

Also registered at 2841 Rendova RD

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

  1. Nicholas Cardinale, M.D..Family Medicine Physician1922073212
  2. Danielle Demarchi, DOInternal Medicine Physician1780326983
  3. Shaun Dunston, DNPCertified Registered Nurse Anesthetist1477163954
  4. Justin Fredericks, DOGeneral Practice Physician1487356176
  5. Michael Hornacek, M.D.Surgery Physician1417361486
  6. Maryanne Howard, DOSurgery Physician1386039840

Verify Lizann Mercado Ponferrada in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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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Bills Medicare through one group practice

  1. Smg Anesthesia Specialists LLCNorfolk, VA

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

Lizann Mercado Ponferrada among 2,943 certified registered nurse anesthetist records in California

Lizann Mercado Ponferrada, CRNA is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 70% of them.

  • NPI issued2019 · 70% of these records are older, 25% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2019 · median 2016 among the 2,089 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

All 2,943 in California → Every provider in San Diego → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Shaun Dunston, DNPSan Diego, CA 921551477163954
  2. James Barrett, CRNASan Diego, CA 921611164448403
  3. Christina Chatroo, CRNASan Diego, CA 921611922032945
  4. Christie Cole, CRNASan Diego, CA 921611245470871
  5. Stephanie Corbett, CRNASan Diego, CA 921611689900193
  6. Joanne Gervase, CRNASan Diego, CA 921611588697023
  7. Kelly HartmayerSan Diego, CA 921611235154675
  8. Jeffrey Johnson, CRNASan Diego, CA 921611164448494

Common questions

What is Lizann Mercado Ponferrada, CRNA's NPI number?

Lizann Mercado Ponferrada, CRNA's National Provider Identifier (NPI) is 1679131650, issued on Jun 4, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Lizann Mercado Ponferrada, CRNA located?

The NPPES record lists a practice address at 2841 Rendova RD, San Diego, CA, 92155. Phone: (619) 522-2715. Providers update this record themselves, so call before visiting.

How can I verify Lizann Mercado Ponferrada, CRNA's license?

Search the California board that licenses this profession; the NPPES record confirms identity 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.

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.