ALFONSO L. VELASCO MD
NPI 1144321993
Colon & Rectal Surgery in Marshfield, WI

Active since September 26, 2006PECOS Enrolled
1000 N OAK AVE, MARSHFIELD, WI 54449(715) 387-5511 Get Directions Write a Review

NPPES record last updated: March 3, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alfonso L. Velasco Md NPPES

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

ALFONSO L. VELASCO MD (NPI 1144321993) is an individual colon & rectal surgery provider in Marshfield, Wisconsin, licensed in Wisconsin (43915) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144321993
Entity TypeIndividualMale
Primary Taxonomy208C00000X
Provider Legal NameALFONSO L. VELASCOCredential: MD
Location Address1000 N OAK AVEMarshfield, WI 54449-5703
Mailing Address1000 N Oak AveMarshfield, WI 54449-5703 · (715) 387-5511
Sole ProprietorNo
Enumeration DateSeptember 26, 2006
Last NPPES UpdateMarch 3, 2010
✔ NPI 1144321993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208C00000X
License✔ Licensed in WI · 43915
Definition
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
Also ListedSurgeryTaxonomy 208600000X · License 43915 (WI)
1000 N OAK AVE, Marshfield, WI 54449

Other Identifiers 3

Medicare UPINE97469
Medicare ID-Type Unspecified008272200WI
Medicaid34142800WI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alfonso L. Velasco 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Alfonso Velasco reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,476 clinicians in this Medicare group
Clinic/Center
806 2ND ST
Chetek, WI 54728
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,616 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54449 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
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.

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.

Ostomy skin barrier, with flange (solid, flexible or accordion), without built-in convexity, 4 x 4 inches or smaller, each A4414
DME-Orthotic Devices · category DF010N
4 suppliers13 claims240 services$3.94 avg. paid by Medicare
Ostomy pouch, closed; for use on barrier with non-locking flange, with filter (2 piece), each A4419
DME-Orthotic Devices · category DF010N
3 suppliers12 claims720 services$1.51 avg. paid by Medicare
Adhesive remover, wipes, any type, each A4456
DME-Medical/Surgical Supplies · category DA000N
4 suppliers12 claims800 services$0.16 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Obstetrics & Gynecology
1000 N OAK AVE
MARSHFIELD, WI 54449
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Dietitian, Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Student in an Organized Health Care Education/Training Program
1000 N OAK AVE
MARSHFIELD, WI 54449
Physician Assistant
1000 N OAK AVE
MARSHFIELD, WI 54449
Nurse Anesthetist, Certified Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Internal Medicine
1000 N OAK AVE
MARSHFIELD, WI 54449
Radiology (Vascular & Interventional Radiology)
1000 N OAK AVE
MARSHFIELD, WI 54449

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 Alfonso Velasco's NPI number?

The NPI number for Alfonso Velasco is 1144321993. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Alfonso Velasco located?

Alfonso Velasco practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.

What is Alfonso Velasco's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is Alfonso Velasco enrolled in Medicare?

Yes. Alfonso Velasco is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alfonso Velasco's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alfonso Velasco reassigns Medicare benefits to 3 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI) and Lakeview Medical Center Inc Of Rice Lake (Chetek, WI). 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 Alfonso Velasco's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alfonso Velasco was last updated on March 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.