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

EVELYN SYLVALIE A-GNP-C
NPI 1154101764
Nurse Practitioner - Gerontology in Houston, TX

Q: What is Evelyn Sylvalie's NPI number?

The NPI number for Evelyn Sylvalie is 1154101764. It was assigned to this individual provider in the NPPES registry on October 2, 2023.

Q: What is Evelyn Sylvalie's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Q: When was this NPI record last updated?

The NPPES record for Evelyn Sylvalie was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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 October 02, 2023PECOS Enrolled

18333 EGRET BAY BLVD STE 140, HOUSTON, TX 77058(281) 332-3001 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 28, 2026, Oct 2, 2023 (2 updates tracked since 2023).

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About Evelyn Sylvalie A-gnp-c NPPES

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

EVELYN SYLVALIE A-GNP-C (NPI 1154101764) is an individual gerontology provider in Houston, Texas, licensed in Texas (1097766) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS, is affiliated with University Of Texas Medical Branch Galveston, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1154101764

Entity TypeIndividualFemale

Primary Taxonomy363LG0600X

Provider Legal NameEVELYN SYLVALIECredential: A-GNP-C

Location Address18333 EGRET BAY BLVD STE 140Houston, TX 77058-3239

Mailing Address18333 Egret Bay Blvd Ste 140Houston, TX 77058-3239 · (281) 332-3001 · Fax (281) 332-3005

Phone(281) 332-3001

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateOctober 2, 2023

Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1154101764 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LG0600X

License✔ Licensed in TX · 1097766

18333 EGRET BAY BLVD STE 140, Houston, TX 77058

Open in Google Maps ↗

Secondary Practice Locations 6

Location 118300 Houston Methodist DrHouston, TX 77058-6302 · Phone (281) 523-2000

Location 2110 E Medical Center BlvdWebster, TX 77598-4301 · Phone (832) 224-9500

Location 3655 E Medical Center BlvdWebster, TX 77598-4328 · Phone (281) 286-1500

Location 4200 Blossom StWebster, TX 77598-4204 · Phone (832) 632-6500

Location 52240 Gulf Fwy SLeague City, TX 77573-5143 · Phone (409) 772-1011

Location 6350 Blossom StWebster, TX 77598-4206 · Phone (281) 316-7800

Other Identifiers 3

Medicaid481190303TX

Medicaid481190302TX

Medicaid481190304TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, Sendero Health Plans, Local Nonprofit 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)

Evelyn Sylvalie A-gnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224480991

PECOS Enrollment IDI20240118000558

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 Reassignments

Medicare enrollment records show Evelyn Sylvalie reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Xpertmd

Same address

Hospitalist

18333 EGRET BAY BLVD STE 140
Houston, TX 77058

Reassigned Medicare billing, Texas enrollment
39 clinicians in this Medicare group

NPI 1205360518 (281) 332-3001

Knd Development 59 LLC

1.5 mi

Hospitalist

350 BLOSSOM ST
Webster, TX 77598

Reassigned Medicare billing, Texas enrollment
121 clinicians in this Medicare group

NPI 1114215571 (281) 316-7800

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

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

494 services130 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

85 services62 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

17 services17 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

University Of Texas Medical Branch Galveston

Acute Care Hospitals · Galveston, TX

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number450018

Location301 University BoulevardGalveston, TX 77555 · Galveston County

Emergency services Birthing friendly

Hca Houston Healthcare Clear Lake

Acute Care Hospitals · Webster, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450617

Location500 W Medical Center BlvdWebster, TX 77598 · Harris County

Emergency services Birthing friendly

Houston Methodist Clear Lake Hospital

Acute Care Hospitals · Nassau Bay, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450709

Location18300 Houston Methodist DrNassau Bay, TX 77058 · Harris County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77058 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

$90.40 typical visit price

range $58.24 – $176.98

Typical copayment $22.60 (range $14.56 – $44.24)

Most-billed visit code 99203

Established Patient

$102.71 typical visit price

range $18.60 – $143.93

Typical copayment $25.67 (range $4.65 – $35.98)

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.

CHARMAINE FULTON AGACNP-BC

Nurse Practitioner (Acute Care)