SYDNEY MESSLEIN PA-C
NPI 1215507447
Physician Assistant in Galveston, TX

Active since June 29, 2021PECOS Enrolled
815 MARKET ST, GALVESTON, TX 77550(409) 770-6515 Get Directions Write a Review

NPPES record last updated: March 2, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 2, 2023, Dec 14, 2021, Jun 29, 2021 (3 updates tracked since 2021).

About Sydney Messlein Pa-c NPPES

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

SYDNEY MESSLEIN PA-C (NPI 1215507447) is an individual physician assistant in Galveston, Texas and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215507447
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameSYDNEY MESSLEINCredential: PA-C
Location Address815 MARKET STGalveston, TX 77550-2725
Mailing Address815 Market StGalveston, TX 77550-2725
Sole ProprietorNo
Enumeration DateJune 29, 2021
Last NPPES UpdateMarch 2, 20233 updates tracked since enumeration
NPPES CertifiedMarch 2, 2023
NPI 1215507447 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.
815 MARKET ST, Galveston, TX 77550

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 Messlein Pa-c 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77550 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
$88.24 typical visit price
range $57.19 – $173.07
Typical copayment $22.06 (range $14.29 – $43.26)
Most-billed visit code 99203
Established Patient
$71.32 typical visit price
range $18.45 – $141.36
Typical copayment $17.83 (range $4.61 – $35.34)
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 20

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

Anesthesiology
815 MARKET ST, MEDICAL STAFF OFFICE
GALVESTON, TX 77550
Nurse Practitioner (Family)
815 MARKET ST
GALVESTON, TX 77550
Surgery (Surgical Critical Care)
815 MARKET ST, MEDICAL STAFF OFFICE
GALVESTON, TX 77550
Surgery (Surgical Critical Care)
815 MARKET ST, MEDICAL STAFF OFFICE
GALVESTON, TX 77550
Physician Assistant
815 MARKET ST
GALVESTON, TX 77550
Prosthetic/Orthotic Supplier
815 MARKET ST
GALVESTON, TX 77550
Nurse Practitioner (Family)
815 MARKET ST
GALVESTON, TX 77550
Anesthesiology
815 MARKET ST
GALVESTON, TX 77550

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 Messlein's NPI number?

The NPI number for Sydney Messlein is 1215507447. It was assigned to this individual provider in the NPPES registry on June 29, 2021.

Where is Sydney Messlein located?

Sydney Messlein practices at 815 Market St, Galveston, TX 77550. The listed phone number is (409) 770-6515.

What is Sydney Messlein's specialty?

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

Is Sydney Messlein enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Sydney Messlein was last updated on March 2, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.