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Emergency Medicine

Ashraf S. Kasto, DO

Works at hospitals in La Mesa, CA · California

Summary

Dr. Ashraf S. Kasto, DO is an emergency medicine doctor at 5555 Grossmont Ctr Dr, La Mesa, CA 91942. Phone: (619) 465-0711. Accepts Medicare assignment. In 2024, Ashraf S. Kasto had 576 Original Medicare patients and 934 services. NPI 1629116058. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 5555 Grossmont Ctr Dr, La Mesa, CA 91942 · Directions
  • Phone: (619) 465‑0711
  • Medicare: Accepts Medicare assignment
  • Hospital: Grossmont Hospital
  • Group practice: Team Physicians of Northern California Medical Group Inc
  • Medical school: graduated 2002 (24 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ashraf S. Kasto, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ashraf S. Kasto accept Medicare assignment?
Yes. Medicare's clinician data says Ashraf S. Kasto accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ashraf S. Kasto see?
In 2024, CMS data shows 576 Original Medicare patients and 934 services for Ashraf S. Kasto. This counts Original Medicare only and measures volume, not quality.
What is Ashraf S. Kasto's NPI number?
1629116058. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ashraf S. Kasto, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients576
Services billed to Medicare934
Different services or procedures21
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)448 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)319 services
  3. Emergency department visit with moderate level of medical decision making (99284)84 services
  4. Critical care, first 30-74 minutes (99291)38 services
  5. Emergency department visit with low level of medical decision making (99283)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis60%
  • Diabetes51%
  • Depression45%
  • Ischemic heart disease40%

Hospitals where Ashraf S. Kasto works

Medicare's Facility Affiliation Data lists Ashraf S. Kasto at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026

Practice locations

Addresses where Ashraf S. Kasto is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ashraf S. Kasto as a member of this group (CMS data updated October 2, 2026).

  • Team Physicians of Northern California Medical Group Inc85 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in La Mesa

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

All emergency medicine doctors in La Mesa →

Other clinicians in Team Physicians of Northern California Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629116058
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians