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

GEORGE KNAPPENBERGER MD
NPI 1326016866
Internal Medicine - Geriatric Medicine in Warren, OH

Active since March 10, 2006PECOS Enrolled
1350 E MARKET ST, WARREN, OH 44483(330) 841-9822(330) 841-9281 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About George Knappenberger Md NPPES

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

GEORGE KNAPPENBERGER MD (NPI 1326016866) is an individual geriatric medicine provider in Warren, Ohio, licensed in Ohio (35078786) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326016866
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameGEORGE KNAPPENBERGERCredential: MD
Location Address1350 E MARKET STWarren, OH 44483-6608
Mailing Address1350 E Market StWarren, OH 44483-6608 · (330) 841-9822 · Fax (330) 841-9281
Fax(330) 841-9281
Sole ProprietorNo
Enumeration DateMarch 10, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1326016866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License Licensed in OH · 35078786
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
1350 E MARKET ST, Warren, OH 44483

Other Identifiers 1

Medicaid2380392OH

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

George Knappenberger 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 44483 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
$166.65 typical visit price
range $54.34 – $166.65
Typical copayment $41.66 (range $13.58 – $41.66)
Most-billed visit code 99205
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Student in an Organized Health Care Education/Training Program
1350 E MARKET ST
WARREN, OH 44483
Rehabilitation Unit
1350 E MARKET ST
WARREN, OH 44483
Pathology (Anatomic Pathology & Clinical Pathology)
1350 E MARKET ST
WARREN, OH 44483
Clinic/Center (Urgent Care)
1350 E MARKET ST
WARREN, OH 44483
Student in an Organized Health Care Education/Training Program
1350 E MARKET ST
WARREN, OH 44483
Dietitian, Registered
1350 E MARKET ST
WARREN, OH 44483
General Acute Care Hospital
1350 E MARKET ST
WARREN, OH 44483
Physician Assistant (Medical)
1350 E MARKET ST
WARREN, OH 44483

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 George Knappenberger's NPI number?

The NPI number for George Knappenberger is 1326016866. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is George Knappenberger located?

George Knappenberger practices at 1350 E Market St, Warren, OH 44483. The listed phone number is (330) 841-9822.

What is George Knappenberger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is George Knappenberger enrolled in Medicare?

Yes. George Knappenberger is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for George Knappenberger was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 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.