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

WALSTIR H FONSECA MD
NPI 1013933506
Internal Medicine in Lindon, UT

Active since July 15, 2006PECOS Enrolled
76 S KINGS PEAK DR, LINDON, UT 84042(801) 370-5193 Get Directions Write a Review

NPPES record last updated: July 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 7, 2026, Nov 23, 2021, Mar 18, 2020 and 1 more (4 updates tracked since 2018).

About Walstir H Fonseca Md NPPES

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

WALSTIR H FONSECA MD (NPI 1013933506) is an individual internal medicine provider in Lindon, Utah, licensed in Utah (329175-1205) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013933506
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameWALSTIR H FONSECACredential: MD
Location Address76 S KINGS PEAK DRLindon, UT 84042-2223
Mailing Address76 S Kings Peak DrLindon, UT 84042-2223 · (801) 370-5193
Phone(801) 370-5193
Sole ProprietorNo
Enumeration DateJuly 15, 2006
Last NPPES UpdateJuly 5, 20264 updates tracked since enumeration
NPPES CertifiedNovember 23, 2021
✔ NPI 1013933506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in UT · 329175-1205
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
76 S KINGS PEAK DR, Lindon, UT 84042
Open in Google Maps ↗

Other Identifiers 7

Other04-00322UT · United Healthcare
Other110166693UT · Palmetto
OtherQM0000000074UT · Altius
Other286636UT · Dmba
Other46639UT · Pehp
Other870281028FO1UT · Emia
Other107007883101UT · Ihc

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Walstir H Fonseca Md 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 84042 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
$125.70 typical visit price
range $54.34 – $166.03
Typical copayment $31.42 (range $13.58 – $41.50)
Most-billed visit code 99204
Established Patient
$96.35 typical visit price
range $17.23 – $135.20
Typical copayment $24.08 (range $4.30 – $33.80)
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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier17 claims17 services$14.62 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers43 claims44 services$84.61 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier14 claims19 services$35.54 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Walstir Fonseca's NPI number?

The NPI number for Walstir Fonseca is 1013933506. It was assigned to this individual provider in the NPPES registry on July 15, 2006.

Where is Walstir Fonseca located?

Walstir Fonseca practices at 76 S Kings Peak Dr, Lindon, UT 84042. The listed phone number is (801) 370-5193.

What is Walstir Fonseca's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Walstir Fonseca enrolled in Medicare?

Yes. Walstir Fonseca is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Walstir Fonseca was last updated on July 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 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.