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

MARY KATHRYN ALONSO CPNP-PC, PMHNP-BC
NPI 1982290953
Nurse Practitioner in Winston Salem, NC

Active since December 14, 2020PECOS Enrolled
2200 CLOVERDALE AVE STE 410, WINSTON SALEM, NC 27103(336) 713-4500 Get Directions Write a Review

NPPES record last updated: September 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 4, 2026, Jul 30, 2026, Apr 18, 2024 and 2 more (5 updates tracked since 2020).

About Mary Kathryn Alonso Cpnp-pc, Pmhnp-bc NPPES

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

MARY KATHRYN ALONSO CPNP-PC, PMHNP-BC (NPI 1982290953) is an individual nurse practitioner in Winston Salem, North Carolina, licensed in North Carolina (5024530) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982290953
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARY KATHRYN ALONSOCredential: CPNP-PC, PMHNP-BC
Location Address2200 CLOVERDALE AVE STE 410Winston Salem, NC 27103-2300
Mailing Address2200 Cloverdale Ave Ste 410Winston Salem, NC 27103-2300 · (336) 713-4500 · Fax (336) 713-4501
Phone(336) 713-4500
Sole ProprietorNo
Enumeration DateDecember 14, 2020
Last NPPES UpdateSeptember 4, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2026
✔ NPI 1982290953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
Licenses✔ Licensed in NC · 5024530✔ Licensed in KY · 3015577
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.
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 5024530 (NC), 3015577 (KY)
Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X · License 5024530 (NC), 3015577 (KY)
2200 CLOVERDALE AVE STE 410, Winston Salem, NC 27103
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Other Names 1

Other Name (5)Katie Alonso Cpnp-pc, Pmhnp-bc

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter from Buckeye Health Plan, Ambetter from Meridian and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Kathryn Alonso Cpnp-pc, Pmhnp-bc 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 Mary Alonso reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Norton Children's Medical Group, LLC
330 mi
Clinical Genetics (M.D.)
4803 OLYMPIA PARK PLZ STE 1100
Louisville, KY 40241
  • Reassigned Medicare billing, Kentucky enrollment
  • Medicare enrollment name: Norton Childrens Medical Group LLC
  • 1,008 clinicians in this Medicare group
NPI 1013559921 (502) 272-5336

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 27103 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
$83.90 typical visit price
range $54.12 – $165.09
Typical copayment $20.97 (range $13.53 – $41.27)
Most-billed visit code 99203
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
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

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

MRS. JENNIFER LAUREN FORD LCSW
Social Worker (Clinical)
2200 CLOVERDALE AVE STE 410
WINSTON SALEM, NC 27103
Forsyth County (336) 713-4500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Alonso's NPI number?

The NPI number for Mary Alonso is 1982290953. It was assigned to this individual provider in the NPPES registry on December 14, 2020. The provider is also known as Katie Alonso Cpnp-Pc, Pmhnp-Bc.

Where is Mary Alonso located?

Mary Alonso practices at 2200 Cloverdale Ave Ste 410, Winston Salem, NC 27103. The listed phone number is (336) 713-4500.

What is Mary Alonso's specialty?

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

Is Mary Alonso enrolled in Medicare?

Yes. Mary Alonso is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Alonso's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Alonso reassigns Medicare benefits to Norton Children's Medical Group, LLC (Louisville, KY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Alonso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Alonso accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Ambetter of North Carolina and 2 other insurers list Mary Alonso as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Alonso was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 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.