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DR. JOHN EDWARD HALVERSEN JR. D.D.S.
NPI 1992919831
Dentist in Rockford, IL

Active since May 10, 2007PECOS Enrolled
1200 W STATE ST, ROCKFORD, IL 61102(815) 490-1600(815) 490-1881 Get Directions Write a Review

NPPES record last updated: August 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. John Edward Halversen Jr. D.d.s. NPPES

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

DR. JOHN EDWARD HALVERSEN JR. D.D.S. (NPI 1992919831) is an individual dentist in Rockford, Illinois, licensed in Illinois (019021620) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992919831
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. JOHN EDWARD HALVERSEN JR.Credential: D.D.S.
Location Address1200 W STATE STRockford, IL 61102-2112
Mailing Address1200 W State StRockford, IL 61102-2112 · (815) 490-1600 · Fax (815) 490-1881
Phone(815) 490-1600
Fax(815) 490-1881
Sole ProprietorYes
Enumeration DateMay 10, 2007
Last NPPES UpdateAugust 26, 2025
NPPES CertifiedAugust 26, 2025
✔ NPI 1992919831 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in IL · 019021620
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
Also ListedDentist · General PracticeTaxonomy 1223G0001X · License 019-021620 (IL)
1200 W STATE ST, Rockford, IL 61102
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Edward Halversen Jr. D.d.s. 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 61102 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
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.

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.

CARYN ANN RUZIC APRN
Nurse Practitioner (Family)
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
DR. JOHN WALL MD
Family Medicine
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
DR. ADEKOLA ABIOUDUN ASHAYE MD
Internal Medicine
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
DR. GARY PATRICK FERNANDO MD
Pediatrics
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
CRISTINA DIVENTI LSW
Social Worker
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
CORNITA CANNON M.D.
Obstetrics & Gynecology
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
LAURA PEREZ CNM, APRN
Advanced Practice Midwife
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600
KERIN CUMMINS APN
Nurse Practitioner (Family)
1200 W STATE ST
ROCKFORD, IL 61102
Winnebago County (815) 490-1600

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 John Halversen's NPI number?

The NPI number for John Halversen is 1992919831. It was assigned to this individual provider in the NPPES registry on May 10, 2007.

Where is John Halversen located?

John Halversen practices at 1200 W State St, Rockford, IL 61102. The listed phone number is (815) 490-1600.

What is John Halversen's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is John Halversen enrolled in Medicare?

Yes. John Halversen is registered in the Medicare PECOS enrollment system.

What insurance does John Halversen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 1 other insurer list John Halversen 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 John Halversen was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.