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Internal Medicine

Kathlyn R. Ignacio, MD

Sees patients in San Diego, CA · California

Summary

Dr. Kathlyn R. Ignacio, MD is an internal medicine doctor at 10243 Genetic Ctr Dr, San Diego, CA 92121. Phone: (858) 499-2600. Accepts Medicare assignment. In 2024, Kathlyn R. Ignacio had 89 Original Medicare patients and 176 services. NPI 1912917345. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 10243 Genetic Ctr Dr, San Diego, CA 92121 · Directions
  • Phone: (858) 499‑2600
  • Medicare: Accepts Medicare assignment
  • Group practice: Sharp Rees-Stealy Medical Group Inc
  • Medical school: Medical College Of Pennsylvania · graduated 1988 (38 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Kathlyn R. Ignacio, 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 Kathlyn R. Ignacio accept Medicare assignment?
Yes. Medicare's clinician data says Kathlyn R. Ignacio 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 Kathlyn R. Ignacio see?
In 2024, CMS data shows 89 Original Medicare patients and 176 services for Kathlyn R. Ignacio. This counts Original Medicare only and measures volume, not quality.
What is Kathlyn R. Ignacio's NPI number?
1912917345. 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 Kathlyn R. Ignacio, 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 patients89
Services billed to Medicare176
Different services or procedures10
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Administration of influenza virus vaccine (G0008)37 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)35 services
  3. Admn sarscov2 vacc 1 dose (90480)29 services
  4. Influenza vaccine, inactivated (90653)29 services
  5. Sarscov2 vac 50 mcg/0.5ml im (91322)29 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 cholesterol75%
  • High blood pressure73%
  • Diabetes38%
  • Arthritis37%
  • Ischemic heart disease24%
  • Osteoporosis21%

Practice locations

Addresses where Kathlyn R. Ignacio is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kathlyn R. Ignacio as a member of this group (CMS data updated October 2, 2026).

  • Sharp Rees-Stealy Medical Group Inc884 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Diego

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

All internal medicine doctors in San Diego →

Other clinicians in Sharp Rees-Stealy Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolMedical College Of Pennsylvania
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912917345
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 October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians