LOREEN A HERWALDT MD
NPI 1811979131
Internal Medicine - Infectious Disease in Iowa City, IA

Q: What is Loreen Herwaldt's NPI number?

The NPI number for Loreen Herwaldt is 1811979131. It was assigned to this individual provider in the NPPES registry on November 14, 2005. The provider is also known as Loreen A Herwaldt-Abbott.

Q: What is Loreen Herwaldt's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Loreen Herwaldt was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since November 14, 2005PECOS EnrolledAccepts Medicare Assignment

200 HAWKINS DR, IOWA CITY, IA 52242(319) 356-8150(319) 356-4600 Get Directions Write a Review

NPPES record last updated: August 5, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 5, 2025, Apr 7, 2025, Jul 29, 2019 (3 updates tracked since 2019).

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About Loreen A Herwaldt Md NPPES

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

LOREEN A HERWALDT MD (NPI 1811979131) is an individual infectious disease provider in Iowa City, Iowa, licensed in Iowa (26211) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS, is affiliated with University Of Iowa Hospital & Clinics, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1811979131

Entity TypeIndividualFemale

Primary Taxonomy207RI0200X

Provider Legal NameLOREEN A HERWALDTCredential: MD

Location Address200 HAWKINS DRIowa City, IA 52242-1009

Mailing Address200 Hawkins DrIowa City, IA 52242-1009 · (319) 356-8150 · Fax (319) 356-4600

Phone(319) 356-8150

Fax(319) 356-4600

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1977

Enumeration DateNovember 14, 2005

Last NPPES UpdateAugust 5, 20253 updates tracked since enumeration

NPPES CertifiedAugust 5, 2025

✔ NPI 1811979131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in IA · 26211

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedInternal MedicineTaxonomy 207R00000X · License 26211 (IA)

200 HAWKINS DR, Iowa City, IA 52242

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Other Names 1

Other Name (5)Loreen A Herwaldt-abbott

Secondary Practice Locations 2

Location 1701 W Forevergreen RdNorth Liberty, IA 52317-9848 · Phone (319) 356-2633 · Fax (319) 356-3949

Location 2540 E Jefferson St Ste 400Iowa City, IA 52245-2479 · Phone (319) 688-7440 · Fax (319) 887-2971

Other Identifiers 1

Other25145IA · Wellmark Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Loreen A Herwaldt Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9436292836

PECOS Enrollment IDI20100208000430

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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Iowa Hospital & Clinics

Acute Care Hospitals · Iowa City, IA

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number160058

Location200 Hawkins DriveIowa City, IA 52242 · Johnson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52242 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

$122.23 typical visit price

range $52.96 – $161.40

Typical copayment $30.55 (range $13.24 – $40.35)

Most-billed visit code 99204

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $32.99)

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.

SANGIL LEE M.D.

Emergency Medicine

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2233

RAMI G. EL ABIAD M.D.

Internal Medicine (Gastroenterology)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-4901

GRERK SUTAMTEWAGUL MD

Internal Medicine (Hematology & Oncology)

200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242

Johnson County (319) 356-1616

DR. KALEB TANNER VEIT D.O.

Internal Medicine (Critical Care Medicine)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2320

OMAR JABER M.D

Chronic Disease Hospital

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 471-8958

JENNIFER MANCUSO MS, CGC

Genetic Counselor, MS

200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242

Johnson County (319) 384-7983

ASHLEY KAISER M.D.

Obstetrics & Gynecology

200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242

Johnson County (319) 356-2294

MRS. NANCY JANE MILLICE

Health Educator

200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242

Johnson County (319) 356-3825

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 Loreen Herwaldt's NPI number?

The NPI number for Loreen Herwaldt is 1811979131. It was assigned to this individual provider in the NPPES registry on November 14, 2005. The provider is also known as Loreen A Herwaldt-Abbott.

Where is Loreen Herwaldt located?

Loreen Herwaldt practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-8150.

What is Loreen Herwaldt's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Loreen Herwaldt enrolled in Medicare?

Yes. Loreen Herwaldt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Loreen Herwaldt accept?

Health plans from Medica and Sanford Health Plan list Loreen Herwaldt 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.

Is Loreen Herwaldt affiliated with any hospitals?

According to CMS data, Loreen Herwaldt is affiliated with University Of Iowa Hospital & Clinics.

When was this NPI record last updated?

The NPPES record for Loreen Herwaldt was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.