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MRS. ESTEFANNY MARIELLA WINTON MSN, ED, FNP-C
NPI 1043166101
Nurse Practitioner in Mount Airy, MD

Active since March 10, 2026PECOS EnrolledAccepts Medicare Assignment
504 E RIDGEVILLE BLVD, MOUNT AIRY, MD 21771(240) 215-6310(240) 566-7754 Get Directions Write a Review

NPPES record last updated: July 10, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 10, 2026, Mar 10, 2026 (2 updates tracked since 2026).

About Mrs. Estefanny Mariella Winton Msn, Ed, Fnp-c NPPES

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

MRS. ESTEFANNY MARIELLA WINTON MSN, ED, FNP-C (NPI 1043166101) is an individual nurse practitioner in Mount Airy, Maryland, licensed in Maryland (R232834) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1043166101
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. ESTEFANNY MARIELLA WINTONCredential: MSN, ED, FNP-C
Location Address504 E RIDGEVILLE BLVDMount Airy, MD 21771-5942
Mailing Address1 Frederick Health WayFrederick, MD 21701-9435
Phone(240) 215-6310
Fax(240) 566-7754
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateMarch 10, 2026
Last NPPES UpdateJuly 10, 20262 updates tracked since enumeration
NPPES CertifiedJuly 10, 2026
✔ NPI 1043166101 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 MD · R232834
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.
504 E RIDGEVILLE BLVD, Mount Airy, MD 21771
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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 and accepts Medicare assignment

Mrs. Estefanny Mariella Winton Msn, Ed, Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860957404
PECOS Enrollment IDI20260723003157
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 Estefanny Winton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Frederick Health Medical Group LLC
Same address
Family Medicine
504 E RIDGEVILLE BLVD
Mount Airy, MD 21771
  • Reassigned Medicare billing, Maryland enrollment
  • 245 clinicians in this Medicare group
NPI 1114771862 (240) 215-6310

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Frederick Health Hospital

Acute Care Hospitals · Frederick, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210005
Location400 West Seventh StFrederick, MD 21701 · Frederick County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21771 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
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
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 17

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

MNR INDUSTRIES LLC
Clinic/Center (Urgent Care)
504 E RIDGEVILLE BLVD, SUITE 102
MOUNT AIRY, MD 21771
Frederick County (301) 703-5452
JESSICA JANISHESKI CRNP
Nurse Practitioner (Family)
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (240) 215-6310
FREDERICK HEALTH MEDICAL GROUP LLC
Family Medicine
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (240) 215-6310
VIVIANNE DAGHER
Family Medicine
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (240) 215-6310
SINAI HOSPITAL OF BALTIMORE INC
Pediatrics (Pediatric Hematology-Oncology)
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (410) 601-5864
FREDERICK HEALTH HOSPITAL INC
Clinical Medical Laboratory
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (240) 215-6310
THE GREAT ATLANTIC AND PACIFIC TEA COMPANY INC
Pharmacy
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (301) 829-6402
MICHELLE ANNE VONN PA-C
Physician Assistant
504 E RIDGEVILLE BLVD
MOUNT AIRY, MD 21771
Frederick County (301) 703-5452

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 Estefanny Winton's NPI number?

The NPI number for Estefanny Winton is 1043166101. It was assigned to this individual provider in the NPPES registry on March 10, 2026.

Where is Estefanny Winton located?

Estefanny Winton practices at 504 E Ridgeville Blvd, Mount Airy, MD 21771. The listed phone number is (240) 215-6310.

What is Estefanny Winton's specialty?

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

Is Estefanny Winton enrolled in Medicare?

Yes. Estefanny Winton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Estefanny Winton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Estefanny Winton reassigns Medicare benefits to Frederick Health Medical Group LLC (Mount Airy, MD). 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 Estefanny Winton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Estefanny Winton affiliated with any hospitals?

According to CMS data, Estefanny Winton is affiliated with Frederick Health Hospital.

When was this NPI record last updated?

The NPPES record for Estefanny Winton was last updated on July 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.