NPPES file of Aug 9, 2026

Mary Louise Ellis, RN BSN PHN MPH

Registered Nurse · Hayward, CA

Mary Louise Ellis, RN BSN PHN MPH is a registered nurse with a practice address in Hayward, California, and NPI 1437360872, issued on May 25, 2007. Check the license (California 222683, as entered in NPPES) with the California board that licenses this profession; 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
1437360872
Name
Mary Louise Ellis
Credential
RN BSN PHN MPH
Primary taxonomy
Registered Nurse 163W00000X
License number
222683 CA
Self-reported in NPPES; status is on the state search
Practice location
20094 Mission Blvd, Hayward, CA 94541
Phone
(510) 727-9755
Enumerated
May 25, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(510) 727-9761
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 registered nurse records → All 13,506 in California → Look up another NPI →

Also registered at 20094 Mission Blvd

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

  1. Michelle Abeyta, RNRegistered Nurse1861907461
  2. Azra CerkezAddiction (Substance Use Disorder) Counselor1306047220
  3. Maggi Connolly, M.F.T.Marriage & Family Therapist1326245168
  4. Anjahni Davi, MFT-IMarriage & Family Therapist1285824540
  5. Sonia Dhesi, RNRegistered Nurse1477069227
  6. Erika Garcia Tabullo, ASWClinical Social Worker1922452622

Verify Mary Louise Ellis 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 222683    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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Mary Louise Ellis among 13,506 registered nurse records in California

Mary Louise Ellis, RN BSN PHN MPH is one of 13,506 registered nurse records with a practice address in California. 3% 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 2007, is newer than 3% of them.

  • NPI issued2007 · 3% of these records are older, 89% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

76 registered nurse records list a practice address in Hayward

They are 76 of the 3,993 NPPES records with a practice address in Hayward, and 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 13,506 in California → Every provider in Hayward → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Michelle Abeyta, RNHayward, CA 945411861907461
  2. Gabriela AlvarezHayward, CA 945411417344540
  3. Barton BodrianHayward, CA 945411538668652
  4. Maxine David-Thompson, R.N.Hayward, CA 945411982076378
  5. Mayte Del Cid, RNHayward, CA 945411457736043
  6. Sonia Dhesi, RNHayward, CA 945411477069227
  7. Diane Fisher, RNHayward, CA 945411780062216
  8. Erin Hayashi-Carrillo, RNHayward, CA 945411487845251

Common questions

What is Mary Louise Ellis, RN BSN PHN MPH's NPI number?

Mary Louise Ellis, RN BSN PHN MPH's National Provider Identifier (NPI) is 1437360872, issued on May 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary Louise Ellis, RN BSN PHN MPH located?

The NPPES record lists a practice address at 20094 Mission Blvd, Hayward, CA, 94541. Phone: (510) 727-9755. Providers update this record themselves, so call before visiting.

How can I verify Mary Louise Ellis, RN BSN PHN MPH's license?

NPPES lists California license number 222683, 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. 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.