Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. ALYSSA SUSANNE MICHALKO NP
NPI 1942665237
Nurse Practitioner in San Diego, CA

Q: What is Alyssa Michalko's NPI number?

The NPI number for Alyssa Michalko is 1942665237. It was assigned to this individual provider in the NPPES registry on December 31, 2015.

Q: What is Alyssa Michalko's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Alyssa Michalko was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 31, 2015PECOS Enrolled

7901 FROST ST, SAN DIEGO, CA 92123(858) 939-3400 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 8, 2024, Dec 31, 2015 (2 updates tracked since 2015).

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About Mrs. Alyssa Susanne Michalko Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. ALYSSA SUSANNE MICHALKO NP (NPI 1942665237) is an individual nurse practitioner in San Diego, California, licensed in California (95027570) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942665237

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMRS. ALYSSA SUSANNE MICHALKOCredential: NP

Location Address7901 FROST STSan Diego, CA 92123-2701

Mailing Address7901 Frost StSan Diego, CA 92123-2701 · (858) 939-3400

Phone(858) 939-3400

Sole ProprietorNo

Enumeration DateDecember 31, 2015

Last NPPES UpdateOctober 22, 20262 updates tracked since enumeration

NPPES CertifiedOctober 22, 2026

✔ NPI 1942665237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in CA · 95027570

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

7901 FROST ST, San Diego, CA 92123

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Alyssa Susanne Michalko Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alyssa Michalko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sasha Salloum MD Inc A Professional Medical Corporation

14 mi

Vascular Surgery

336 OXFORD ST STE 104
Chula Vista, CA 91911

Reassigned Medicare billing, California enrollment
14 clinicians in this Medicare group

NPI 1578949889 (619) 567-3556

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$94.87 typical visit price

range $62.10 – $184.71

Typical copayment $23.71 (range $15.52 – $46.17)

Most-billed visit code 99203

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOANNA PARK

Pharmacist