NPPES file of Aug 9, 2026

Estela M. Nicholas, N.P

Obstetrics & Gynecology Nurse Practitioner · Vista, CA

Estela M. Nicholas, N.P is an obstetrics & gynecology nurse practitioner with a practice address in Vista, California, and NPI 1558384792, issued on Jul 26, 2006. Check the license (California NP11448, as entered in NPPES) 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558384792
Name
Estela M. Nicholas
Credential
N.P
Primary taxonomy
Obstetrics & Gynecology Nurse Practitioner 363LX0001X
License numbers
NP11448 CA
369085 CA
Self-reported in NPPES; status is on the state search
Practice location
1000 Vale Terrace Dr, Vista, CA 92084
Phone
(760) 631-5000
Enumerated
Jul 26, 2006
Record last updated
Mar 9, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(760) 414-3710
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.
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Also registered at 1000 Vale Terrace Dr

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

  1. Azucena AcostaClinical Social Worker1255937496
  2. Tonya Adkins, MDObstetrics & Gynecology Physician1285721712
  3. Autumn AhlersFamily Nurse Practitioner1821007519
  4. Susan AnderaFamily Nurse Practitioner1790914216
  5. Iris Arrieta, M.D.Obstetrics & Gynecology Physician1659614303
  6. Barbara Ascher, CNMAdvanced Practice Midwife1598901993

Verify Estela M. Nicholas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP11448
    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
Find the California license search

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86% fewer Medicare Part D claims than the average obstetrics & gynecology nurse practitioner in 2024

27 Medicare Part D claims for 18 beneficiaries, against an average of 198 among the 1,094 providers of this specialty who prescribed in Part D.

  1. Estela Nicholas27
  2. Specialty average198

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.

Estela M. Nicholas among 394 obstetrics & gynecology nurse practitioner records in California

Estela M. Nicholas, N.P is one of 394 obstetrics & gynecology nurse practitioner records with a practice address in California. 38% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 62% newer
  • In a Medicare fileYes · 38% of these records are
  • In the CMS Doctors and Clinicians fileNo · 14% of these records are
  • Record last updated2016 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LX0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Nurse Practitioner providers in California

There are 394 obstetrics & gynecology nurse practitioner records in California.

The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes

  1. Wendy BonnarVista, CA 920841598786048
  2. Karen GrossVista, CA 920841932122082
  3. Yolanda GubatonVista, CA 920841295756492
  4. Pamela Nadav, NPVista, CA 920841245552801
  5. Rhodora SchaepeVista, CA 920841700974789
  6. Carol Romero, RN,NPSan Marcos, CA 920961619194586
  7. Amy Boutelle, RN, WHNPSan Diego, CA 921031609117704
  8. Kelly Shields, CNMSan Diego, CA 921031265638993

Common questions

What is Estela M. Nicholas, N.P's NPI number?

Estela M. Nicholas, N.P's National Provider Identifier (NPI) is 1558384792, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Estela M. Nicholas, N.P located?

The NPPES record lists a practice address at 1000 Vale Terrace Dr, Vista, CA, 92084. Phone: (760) 631-5000. Providers update this record themselves, so call before visiting.

How can I verify Estela M. Nicholas, N.P's license?

NPPES lists California license number NP11448, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Estela M. Nicholas, N.P prescribe under Medicare Part D?

In 2024, Estela M. Nicholas, N.P had 27 Medicare Part D claims for 18 beneficiaries; the average among obstetrics & gynecology nurse practitioner prescribers was 198. 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.