GARRETT SHACKLETON M.D.
NPI 1295183184
Colon & Rectal Surgery in Waukee, IA

Q: What is Garrett Shackleton's NPI number?

The NPI number for Garrett Shackleton is 1295183184. It was assigned to this individual provider in the NPPES registry on June 1, 2016.

Q: What is Garrett Shackleton's specialty?

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

Active since June 01, 2016PECOS EnrolledAccepts Medicare Assignment

97.58/100

CMS Quality Rating

2515 GRAND PRAIRIE PKWY, WAUKEE, IA 50263(515) 265-1300 Get Directions Write a Review

NPPES record last updated: February 3, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 3, 2026, Aug 19, 2022 (2 updates tracked since 2022).

On this page

About Garrett Shackleton M.d. NPPES

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

GARRETT SHACKLETON M.D. (NPI 1295183184) is an individual colon & rectal surgery provider in Waukee, Iowa, licensed in Iowa (MD-56398) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Des Moines Iowa Methodist Medi, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1295183184

Entity TypeIndividualMale

Primary Taxonomy208C00000X

Provider Legal NameGARRETT SHACKLETONCredential: M.D.

Location Address2515 GRAND PRAIRIE PKWYWaukee, IA 50263-8979

Mailing Address2515 Grand Prairie PkwyWaukee, IA 50263-8979

Phone(515) 265-1300

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateJune 1, 2016

Last NPPES UpdateFebruary 3, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 3, 2026

✔ NPI 1295183184 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 IA · MD-56398

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 MD-56398 (IA)

2515 GRAND PRAIRIE PKWY, Waukee, IA 50263

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, Select Health, Wellmark Health Plan of Iowa, Inc..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

Garrett Shackleton 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 ID6608160411

PECOS Enrollment IDI20220908003380, I20260227003095

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 Garrett Shackleton reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Iowa Physicians Clinic Medical Foundation

9.8 mi

General Practice

1776 W LAKES PKWY STE 400
West Des Moines, IA 50266

Reassigned Medicare billing, Iowa enrollment
1,506 clinicians in this Medicare group

NPI 1366425274 (515) 471-9300

Poudre Valley Medical Group, LLC

582 mi

General Practice

2695 ROCKY MOUNTAIN AVE, SUITE 150
Loveland, CO 80538

Reassigned Medicare billing, Colorado enrollment
2,596 clinicians in this Medicare group

NPI 1366763260 (970) 624-4420

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

31 services27 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

29 services23 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

24 services24 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

17 services17 patients

Hospital Affiliations CMS Care Compare

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

Unitypoint Health - Des Moines Iowa Methodist Medi

Acute Care Hospitals · Des Moines, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160082

Location1200 Pleasant StreetDes Moines, IA 50309 · Polk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50263 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

$81.84 typical visit price

range $52.96 – $161.40

Typical copayment $20.46 (range $13.24 – $40.35)

Most-billed visit code 99203

Established Patient

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

86.53

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 5

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

SAMUEL M MAURICE M.D.

Surgery (Plastic and Reconstructive Surgery)