PFEIFER INTERNAL MEDICINE, PC
NPI 1689098022
Internal Medicine in Kokomo, IN

Q: What is Pfeifer Internal Medicine, PC's NPI number?

The NPI number for Pfeifer Internal Medicine, PC is 1689098022. It was assigned to this organization in the NPPES registry on February 5, 2014. The provider is also known as Pfeifer Internal Medicine.

Q: What is Pfeifer Internal Medicine, PC's specialty?

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

Active since February 05, 2014CLIA 15D0963754 · Microscopy

2226 W ALTO RD, KOKOMO, IN 46902(765) 455-9801(734) 468-5853 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Pfeifer Internal Medicine, Pc NPPES

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

PFEIFER INTERNAL MEDICINE, PC (NPI 1689098022) is a healthcare organization registered as an internal medicine in Kokomo, Indiana and active in the NPI registry since February 2014. The organization holds a CLIA Microscopy certificate valid through April 4, 2027 and lists Diane M Pfeifer, Physician, as its authorized official.

NPPES Registry Identity

NPI1689098022

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NamePFEIFER INTERNAL MEDICINE, PC

Location Address2226 W ALTO RDKokomo, IN 46902-4840

Mailing Address2226 W Alto RdKokomo, IN 46902-4840 · (765) 455-9801 · Fax (765) 455-9840

Phone(765) 455-9801

Fax(734) 468-5853

Organization SubpartNo

Authorized OfficialDiane M PfeiferPhysician · (765) 455-9801

Enumeration DateFebruary 5, 2014

Last NPPES UpdateMarch 16, 2026

NPPES CertifiedMarch 16, 2026

✔ NPI 1689098022 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

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.

2226 W ALTO RD, Kokomo, IN 46902

Open in Google Maps ↗

Other Names 1

Other NamePfeifer Internal Medicine

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Pfeifer Internal Medicine, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Pfeifer Internal Medicine, PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Diane Pfeifer, MD

Internal Medicine

NPI 1730183450

2350 S DIXON RD STE 400
Kokomo, IN 46902

(765) 455-9801

✔ PECOS✔ Accepts Medicare1.3 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 15D0963754

Pfeifer Internal Medicine · Kokomo, IN

Active · expires Apr 4, 2027

CLIA Number15D0963754

Laboratory TypePhysician Office

Certificate Effective DateApril 5, 2025

Certificate Expiration DateApril 4, 2027

Laboratory DirectorDiane M. Pfeifer

Laboratory Phone(765) 455-9801

Laboratory LocationPfeifer Internal Medicine2226 West Alto Road, Kokomo, IN 46902

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Pfeifer Internal Medicine, PC's NPI number?

The NPI number for Pfeifer Internal Medicine, PC is 1689098022. It was assigned to this organization in the NPPES registry on February 5, 2014. The provider is also known as Pfeifer Internal Medicine.

Where is Pfeifer Internal Medicine, PC located?

Pfeifer Internal Medicine, PC is located at 2226 W Alto Rd, Kokomo, IN 46902. The listed phone number is (765) 455-9801.

What is Pfeifer Internal Medicine, PC's specialty?

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

Is Pfeifer Internal Medicine, PC enrolled in Medicare?

Yes. Pfeifer Internal Medicine, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pfeifer Internal Medicine, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Pfeifer Internal Medicine, PC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Pfeifer Internal Medicine, PC hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 15D0963754) is associated with this NPI, valid through April 4, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Pfeifer Internal Medicine, PC accept?

Health plans from CareSource list Pfeifer Internal Medicine, PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Pfeifer Internal Medicine, PC was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.