NPPES file of Aug 9, 2026

Maura Elizabeth O'Day

Pediatric Clinical Nurse Specialist · San Francisco, CA

Maura Elizabeth O'Day is a pediatric clinical nurse specialist with a practice address in San Francisco, California, and NPI 1497140107, issued on Mar 31, 2015. Check the license (California 19952, 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
1497140107
Name
Maura Elizabeth O'Day
Primary taxonomy
Pediatric Clinical Nurse Specialist 364SP0200X
License number
19952 CA
Self-reported in NPPES; status is on the state search
Practice location
1855 4TH St, San Francisco, CA 94158
Phone
(415) 476-3641
Enumerated
Mar 31, 2015
Record last updated
Mar 31, 2015 (not updated in 11 years: call before relying on the address or phone)
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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8 nearest pediatric clinical nurse specialist records → All 42 in California → Look up another NPI →

Also registered at 1855 4TH St

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

  1. Kaitlyn Attiga, MPH, RD, CNSCRegistered Dietitian1801028915
  2. Cristina Benki, PH.D.Clinical Child & Adolescent Psychologist1225216724

Verify Maura Elizabeth O'Day 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 19952    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

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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Industry payments in 2024: $16.19

1 payment: food and beverage; the largest payer was Coloplast Corp. The 73 providers of this specialty with any payment received $150.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maura O'Day$16.19
  2. Specialty average$150.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Maura Elizabeth O'Day among 42 pediatric clinical nurse specialist records in California

Maura Elizabeth O'Day is one of 42 pediatric clinical nurse specialist records with a practice address in California. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 40% of them.

  • NPI issued2015 · 40% of these records are older, 57% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2015 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SP0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Clinical Nurse Specialist providers in California

There are 42 pediatric clinical nurse specialist records in California.

All 42 in California → Every provider in San Francisco → Pediatric Clinical Nurse Specialist nationwide →

The 8 pediatric clinical nurse specialist records with the nearest ZIP codes

  1. Martina MerzSan Francisco, CA 941431801730692
  2. Nanette Madden, NPSan Francisco, CA 941101235256603
  3. Rachel Chapman, CNSPalo Alto, CA 943041427655851
  4. Jeanette Kennedy, RN, MS, CNSPalo Alto, CA 943041831491034
  5. Kristine Laguit, RN, CNSPalo Alto, CA 943041043676778
  6. Kathleen Mullaney, AACNS-PPalo Alto, CA 943041053162180
  7. Colleen Nespor, RN, MSN, CNSPalo Alto, CA 943041629370796
  8. Staci Hemmerlin, CPNPNapa, CA 945581316175532

Common questions

What is Maura Elizabeth O'Day's NPI number?

Maura Elizabeth O'Day's National Provider Identifier (NPI) is 1497140107, issued on Mar 31, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Maura Elizabeth O'Day located?

The NPPES record lists a practice address at 1855 4TH St, San Francisco, CA, 94158. Phone: (415) 476-3641. Providers update this record themselves, so call before visiting.

How can I verify Maura Elizabeth O'Day's license?

NPPES lists California license number 19952, as entered by the provider. 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.