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Nurse Practitioner

Isabel C. Diamond Allen, NP

Sees patients in Encinitas, CA · Rancho Santa Fe, CA · California

Summary

Isabel C. Diamond Allen, NP (Nurse Practitioner) is enrolled with Medicare at 2 practice locations in Encinitas, CA and Rancho Santa Fe, CA. NPI 1164190823. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(760) 230‑1888 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Isabel C. Diamond Allen, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
3Years since medical school (graduated 2023)
FemaleGender (as listed)
Hardison Medical CorporationGroup practice

Quick answers

Where does Isabel C. Diamond Allen see patients?
Medicare's clinician data lists 2 practice locations, including Encinitas, CA and Rancho Santa Fe, CA. Call before your visit to confirm the address.
What is Isabel C. Diamond Allen's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Isabel C. Diamond Allen accept Medicare assignment?
Yes. Medicare's clinician data says Isabel C. Diamond Allen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Isabel C. Diamond Allen offer telehealth?
Medicare's clinician data says Isabel C. Diamond Allen offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Isabel C. Diamond Allen?
(760) 230-1888, as listed in official Medicare / NPI Registry data.
What is Isabel C. Diamond Allen's NPI number?
1164190823. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Isabel C. Diamond Allen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Isabel C. Diamond Allen as a member of this group (CMS data updated 2026-10-02).

  • Hardison Medical Corporation12 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, California →

Other nurse practitioners in Encinitas

Clinicians with the same Medicare primary specialty in Encinitas, CA — not a recommendation.

All nurse practitioners in Encinitas →

Clinician information

CredentialNP
Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1164190823
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians