Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Kathryn Germeraad, DO

Sees patients in Carlsbad, CA · San Marcos, CA · California

Summary

Dr. Kathryn Germeraad, DO is an internal medicine doctor at 1905 Calle Barcelona, Suite 211, Carlsbad, CA 92009. Phone: (858) 766-6007. Accepts Medicare assignment. In 2024, Kathryn Germeraad had 58 Original Medicare patients and 60 services. NPI 1649830498. 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: 1905 Calle Barcelona, Suite 211, Carlsbad, CA 92009 · Directions (1 more location)
  • Phone: (858) 766‑6007
  • Medicare: Accepts Medicare assignment
  • Group practice: Monica Perlman MD Inc
  • Medical school: Lincoln Mem Univ, Debusk Col Of Osteopathic Med · graduated 2019 (7 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 Kathryn Germeraad, 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 Kathryn Germeraad accept Medicare assignment?
Yes. Medicare's clinician data says Kathryn Germeraad 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 Kathryn Germeraad see?
In 2024, CMS data shows 58 Original Medicare patients and 60 services for Kathryn Germeraad. This counts Original Medicare only and measures volume, not quality.
What is Kathryn Germeraad's NPI number?
1649830498. 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 Kathryn Germeraad, 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 patients58
Services billed to Medicare60
Different services or procedures4
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)55 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%
  • Arthritis69%
  • Ischemic heart disease48%
  • Anxiety48%
  • Atrial fibrillation48%

Practice locations

Addresses where Kathryn Germeraad is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kathryn Germeraad as a member of this group (CMS data updated October 2, 2026).

  • Monica Perlman MD Inc364 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Carlsbad

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

All internal medicine doctors in Carlsbad →

Other clinicians in Monica Perlman MD Inc

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

Clinician information

CredentialDO
Medical schoolLincoln Mem Univ, Debusk Col Of Osteopathic Med
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1649830498
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