KARIN M HALVORSON M.D.
NPI 1326201625
Internal Medicine in Wailuku, HI

Q: What is Karin Halvorson's NPI number?

The NPI number for Karin Halvorson is 1326201625. It was assigned to this individual provider in the NPPES registry on July 7, 2008.

Q: What is Karin Halvorson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Karin Halvorson was last updated on September 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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 July 07, 2008PECOS Enrolled

221 MAHALANI ST, WAILUKU, HI 96793(808) 244-9056 Get Directions Write a Review

NPPES record last updated: September 9, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Karin M Halvorson M.d. NPPES

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

KARIN M HALVORSON M.D. (NPI 1326201625) is an individual internal medicine provider in Wailuku, Hawaii, licensed in Rhode Island (MD13599) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and maintains a secondary practice location in Baton Rouge.

NPPES Registry Identity

NPI1326201625

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameKARIN M HALVORSONCredential: M.D.

Location Address221 MAHALANI STWailuku, HI 96793-2526

Mailing Address221 Mahalani StWailuku, HI 96793-2526 · (808) 244-9056

Phone(808) 244-9056

Sole ProprietorNo

Enumeration DateJuly 7, 2008

Last NPPES UpdateSeptember 9, 2021

NPPES CertifiedApril 26, 2021

✔ NPI 1326201625 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in RI · MD13599✔ Licensed in IL · 036122660

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.

Also ListedEmergency MedicineTaxonomy 207P00000X · License MD13599 (RI)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License MD.206921 (LA), 036122660 (IL)

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License MD.206921 (LA), 036122660 (IL)

221 MAHALANI ST, Wailuku, HI 96793

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Secondary Practice Location 1

Location 17777 Hennessy Blvd Ste 701Baton Rouge, LA 70808-4370 · Phone (225) 765-5864 · Fax (225) 765-2013

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karin M Halvorson M.d. 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.

Medicare Billing Reassignments

Medicare enrollment records show Karin Halvorson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Maui Health System A Kaiser Foundation Hospitals LLC

Same address

General Acute Care Hospital

221 MAHALANI ST
Wailuku, HI 96793

Reassigned Medicare billing, Hawaii enrollment
138 clinicians in this Medicare group

NPI 1013379460 (808) 244-9056

Hni Medical Services At Glenwood, LLC

3,999 mi

Internal Medicine

1616 WELLERMAN RD
West Monroe, LA 71291

Reassigned Medicare billing, Louisiana enrollment
56 clinicians in this Medicare group

NPI 1669962064 (512) 730-3056

Independence Emergency Group LLC

4,137 mi

Emergency Medicine

4700 S I 10 SERVICE RD W
Metairie, LA 70001

Reassigned Medicare billing, Louisiana enrollment
114 clinicians in this Medicare group

NPI 1528384773 (504) 885-3333

Administrators Of The Tulane Education Fund

4,143 mi

Anatomic Pathology & Clinical Pathology

2000 CANAL ST
New Orleans, LA 70112

Reassigned Medicare billing, Louisiana enrollment
Medicare enrollment name: Administrators Of The Tulane Educational Fund
851 clinicians in this Medicare group

NPI 1790354595 (504) 702-3000

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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

40 services23 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

23 services16 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

19 services15 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96793 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

$136.68 typical visit price

range $60.53 – $180.05

Typical copayment $34.17 (range $15.13 – $45.01)

Most-billed visit code 99204

Established Patient

$105.65 typical visit price

range $20.09 – $147.56

Typical copayment $26.41 (range $5.02 – $36.89)

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.

SUPERNOVA EMERGENCY PHYSICIANS, LLC

Emergency Medicine