MAILINN ELEANA WONG-PEREZ M.D.
NPI 1306032552
Family Medicine in Butler, PA

Active since September 21, 2007PECOS EnrolledAccepts Medicare Assignment
1 HOSPITAL WAY, BUTLER, PA 16001(724) 285-0823(724) 285-0879 Get Directions Write a Review

NPPES record last updated: January 19, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mailinn Eleana Wong-perez M.d. NPPES

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

MAILINN ELEANA WONG-PEREZ M.D. (NPI 1306032552) is an individual family medicine provider in Butler, Pennsylvania, licensed in Pennsylvania (MD441408) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS, is affiliated with Butler Memorial Hospital, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1306032552
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMAILINN ELEANA WONG-PEREZCredential: M.D.
Location Address1 HOSPITAL WAYButler, PA 16001-4670
Mailing Address1 Hospital WayButler, PA 16001-4670 · (724) 285-0823 · Fax (724) 285-0879
Fax(724) 285-0879
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateSeptember 21, 2007
Last NPPES UpdateJanuary 19, 2016
✔ NPI 1306032552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in PA · MD441408
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1 HOSPITAL WAY, Butler, PA 16001

Other Names 1

Former Name (1)Mailinn Eleana Wong M.d.

Accepted Insurance

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

Mailinn Eleana Wong-perez M.d. 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 ID5395928402
PECOS Enrollment IDI20110328000624
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

2

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

Family Medicine
480 E JEFFERSON ST STE A2
Butler, PA 16001
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 482 clinicians in this Medicare group
Critical Care Medicine
1000 BOWER HILL RD
Pittsburgh, PA 15243
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 133 clinicians in this Medicare group

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 2

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.

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.
115 services111 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
55 services54 patients

Hospital Affiliations CMS Care Compare

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

Butler Memorial Hospital

Acute Care Hospitals · Butler, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390168
LocationOne Hospital WayButler, PA 16001 · Butler County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16001 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
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
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.

Internal Medicine (Infectious Disease)
1 HOSPITAL WAY
BUTLER, PA 16001
Nurse Practitioner
1 HOSPITAL WAY
BUTLER, PA 16001
Nurse Practitioner (Family)
1 HOSPITAL WAY
BUTLER, PA 16001
Family Medicine
1 HOSPITAL WAY, FIRST FLOOR
BUTLER, PA 16001
Pediatrics
1 HOSPITAL WAY
BUTLER, PA 16001
Physician Assistant
1 HOSPITAL WAY
BUTLER, PA 16001
Internal Medicine
1 HOSPITAL WAY
BUTLER, PA 16001
Physician Assistant (Medical)
1 HOSPITAL WAY
BUTLER, PA 16001

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 Mailinn Wong-perez's NPI number?

The NPI number for Mailinn Wong-perez is 1306032552. It was assigned to this individual provider in the NPPES registry on September 21, 2007. The provider is also known as Mailinn Eleana Wong M.D..

Where is Mailinn Wong-perez located?

Mailinn Wong-perez practices at 1 Hospital Way, Butler, PA 16001. The listed phone number is (724) 285-0823.

What is Mailinn Wong-perez's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mailinn Wong-perez enrolled in Medicare?

Yes. Mailinn Wong-perez 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 organizations bill Medicare for Mailinn Wong-perez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mailinn Wong-perez reassigns Medicare benefits to 2 organizations: Butler Medical Providers (Butler, PA) and St Clair Professional Services Inc (Pittsburgh, PA). Each 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 Mailinn Wong-perez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mailinn Wong-perez accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Mailinn Wong-perez 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.

Is Mailinn Wong-perez affiliated with any hospitals?

According to CMS data, Mailinn Wong-perez is affiliated with Butler Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mailinn Wong-perez was last updated on January 19, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.