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

KARL GREGORY SHAVER
NPI 1891257804
Internal Medicine - Cardiovascular Disease in Littleton, CO

Q: What is Karl Shaver's NPI number?

The NPI number for Karl Shaver is 1891257804. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Q: What is Karl Shaver's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Karl Shaver was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 April 01, 2019PECOS Enrolled

95.31/100

CMS Quality Rating

1000 SOUTHPARK DR, LITTLETON, CO 80120(303) 744-1065(303) 733-1699 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 24, 2026, Apr 1, 2019 (2 updates tracked since 2019).

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About Karl Gregory Shaver NPPES

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

KARL GREGORY SHAVER (NPI 1891257804) is an individual cardiovascular disease provider in Littleton, Colorado, licensed in Colorado (DR.76823) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and maintains a secondary practice location in Columbus.

NPPES Registry Identity

NPI1891257804

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameKARL GREGORY SHAVER

Location Address1000 SOUTHPARK DRLittleton, CO 80120-5654

Mailing Address1000 Southpark DrLittleton, CO 80120-5654 · (303) 744-1065 · Fax (303) 733-1699

Phone(303) 744-1065

Fax(303) 733-1699

Sole ProprietorNo

Enumeration DateApril 1, 2019

Last NPPES UpdateAugust 24, 20262 updates tracked since enumeration

NPPES CertifiedAugust 24, 2026

✔ NPI 1891257804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in CO · DR.76823

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1000 SOUTHPARK DR, Littleton, CO 80120

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Secondary Practice Location 1

Location 1The Ohio State University Wexner Medical Center, 395 W 12th Avenue, Third FloorColumbus, OH 43210 · Phone (614) 293-3989 · Fax (614) 293-9789

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karl Gregory Shaver 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 80120 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

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$72.20 typical visit price

range $18.88 – $142.79

Typical copayment $18.05 (range $4.72 – $35.69)

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.

95.31/100

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

Scored through an Alternative Payment Model

Quality

76.58

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims

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

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

1 supplier12 claims12 services$907.03 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.

MRS. KAREN ELAINE KAMERZELL FNP-BC

Nurse Practitioner (Family)