NPPES file of Aug 9, 2026

Emily Calabretta

Nurse Practitioner · Palo Alto, CA

Emily Calabretta is a nurse practitioner with a practice address in Palo Alto, California, and NPI 1558167486, issued on Feb 21, 2025. Check the license (California 95034083, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558167486
Name
Emily Calabretta
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
95034083 CA
209032633 IL
Self-reported in NPPES; status is on the state search
Practice location
500 Pasteur Dr RM P381, Palo Alto, CA 94304
Phone
(650) 723-7857
Enumerated
Feb 21, 2025
Record last updated
Aug 5, 2026
Medicare enrollment
Enrolled (PECOS I20250327003201); 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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Verify Emily Calabretta 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 95034083
    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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Bills Medicare through one group practice

  1. Carbon Health Medical Group OF California PCSanta Clara, CA

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

Emily Calabretta among 8,223 nurse practitioner records in California

Emily Calabretta is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 93% of them.

  • NPI issued2025 · 93% of these records are older, 3% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2024 · median 2017 among the 3,425 with a school on file
  • Record last updated2026 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

318 nurse practitioner records list a practice address in Palo Alto

They are 318 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,223 nurse practitioner records in California.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Claire Abrajano, P.N.P.Palo Alto, CA 943041427147040
  2. Christina Almgren, NPPalo Alto, CA 943041700853165
  3. Kathryn Beall, NNPPalo Alto, CA 943041518027473
  4. Kristine Boyle, NPPalo Alto, CA 943041649368861
  5. Kathryn Esperance, R.N.P.Palo Alto, CA 943041316093768
  6. Kari Ksar, NPPalo Alto, CA 943041285790410
  7. Onica Kuch, NPPalo Alto, CA 943041588615181
  8. Tara Anne Laureano, NPPalo Alto, CA 943041720002322

Common questions

What is Emily Calabretta's NPI number?

Emily Calabretta's National Provider Identifier (NPI) is 1558167486, issued on Feb 21, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Emily Calabretta located?

The NPPES record lists a practice address at 500 Pasteur Dr RM P381, Palo Alto, CA, 94304. Phone: (650) 723-7857. Providers update this record themselves, so call before visiting.

How can I verify Emily Calabretta's license?

NPPES lists California license number 95034083, 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.

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.