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SYDNEY LYNN MARINELLI PA-C
NPI 1285583427
Physician Assistant in Prince Frederick, MD

Active since January 22, 2026PECOS Enrolled
110 HOSPITAL RD STE 201, PRINCE FREDERICK, MD 20678(410) 535-1343 Get Directions Write a Review

NPPES record last updated: January 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Sydney Lynn Marinelli Pa-c NPPES

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

SYDNEY LYNN MARINELLI PA-C (NPI 1285583427) is an individual physician assistant in Prince Frederick, Maryland and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1285583427
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameSYDNEY LYNN MARINELLICredential: PA-C
Location Address110 HOSPITAL RD STE 201Prince Frederick, MD 20678-4045
Mailing Address44476 Whitestone PlTall Timbers, MD 20690-2031
Phone(410) 535-1343
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 22, 2026
NPPES CertifiedJanuary 22, 2026
✔ NPI 1285583427 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
110 HOSPITAL RD STE 201, Prince Frederick, MD 20678
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sydney Lynn Marinelli Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3476036534
PECOS Enrollment IDI20260317001608
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20678 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
$72.23 typical visit price
range $18.66 – $143.02
Typical copayment $18.05 (range $4.66 – $35.75)
Most-billed visit code 99213
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 2

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

THE TRAINING ROOM INC
Durable Medical Equipment & Medical Supplies
110 HOSPITAL RD STE 201
PRINCE FREDERICK, MD 20678
Calvert County (800) 500-1878
CENTERS FOR ADVANCED ORTHOPAEDICS, LLC
Orthopaedic Surgery
110 HOSPITAL RD STE 201
PRINCE FREDERICK, MD 20678
Calvert County (410) 535-1343

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 Sydney Marinelli's NPI number?

The NPI number for Sydney Marinelli is 1285583427. It was assigned to this individual provider in the NPPES registry on January 22, 2026.

Where is Sydney Marinelli located?

Sydney Marinelli practices at 110 Hospital Rd Ste 201, Prince Frederick, MD 20678. The listed phone number is (410) 535-1343.

What is Sydney Marinelli's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Sydney Marinelli enrolled in Medicare?

Yes. Sydney Marinelli is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sydney Marinelli was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.