1. Home
  2. Directory
  3. Iowa
  4. Mason City
  5. Chiropractor
  6. NPI Profile

HAAS CHIROPRACTIC CLINIC
NPI 1639241920
Chiropractor in Mason City, IA

Active since November 14, 2006
1403 S FEDERAL AVE, MASON CITY, IA 50401(641) 424-6531(641) 424-6532 Get Directions Write a Review

NPPES record last updated: August 23, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Haas Chiropractic Clinic NPPES

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

HAAS CHIROPRACTIC CLINIC (NPI 1639241920) is a healthcare organization registered as a chiropractor in Mason City, Iowa and active in the NPI registry since November 2006. The organization lists Richard William Haas, Owner, as its authorized official.

NPPES Registry Identity

NPI1639241920
Entity TypeOrganization
Primary Taxonomy111N00000X
Legal Business NameDR RICHARD W HAAS CHIROPRACTOR PC
Location Address1403 S FEDERAL AVEMason City, IA 50401
Mailing Address1403 S Federal AveMason City, IA 50401-5727 · (641) 424-6531 · Fax (641) 424-6532
Phone(641) 424-6531
Fax(641) 424-6532
Organization SubpartNo
Authorized OfficialRichard William HaasOwner · (641) 424-6531
Enumeration DateNovember 14, 2006
Last NPPES UpdateAugust 23, 2012
✔ NPI 1639241920 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
Licenses✔ Licensed in IA · 06802✔ Licensed in IA · 04549
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
1403 S FEDERAL AVE, Mason City, IA 50401
Open in Google Maps ↗

Other Names 1

Other NameHaas Chiropractic Clinic

Other Identifiers 2

Medicaid0489104IA
Medicare PINI16575IA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Accepted Insurance

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

Haas Chiropractic Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Haas Chiropractic Clinic, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

David Haas, DC
Chiropractic
NPI 1366454332
1403 S. FEDERAL AVE.
Mason City, IA 50401
(641) 424-6531
✔ Accepts MedicareSame address
Richard Haas, D.C.
Chiropractic
NPI 1770591703
1403 S FEDERAL AVE
Mason City, IA 50401
(641) 424-6531
✔ Accepts MedicareSame address
Auston Shrader, DC
Chiropractic
NPI 1043077357
1403 S FEDERAL AVE
Mason City, IA 50401
(641) 424-6531
✔ Accepts MedicareSame address

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

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 Dr Richard W Haas Chiropractor PC's NPI number?

The NPI number for Dr Richard W Haas Chiropractor PC is 1639241920. It was assigned to this organization in the NPPES registry on November 14, 2006. The provider is also known as Haas Chiropractic Clinic.

Where is Dr Richard W Haas Chiropractor PC located?

Dr Richard W Haas Chiropractor PC is located at 1403 S Federal Ave, Mason City, IA 50401. The listed phone number is (641) 424-6531.

What is Dr Richard W Haas Chiropractor PC's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Dr Richard W Haas Chiropractor PC enrolled in Medicare?

Yes. Dr Richard W Haas Chiropractor PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dr Richard W Haas Chiropractor PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Chiropractic, reassign their Medicare billing to Dr Richard W Haas Chiropractor 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. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Dr Richard W Haas Chiropractor PC accept?

Health plans from Sanford Health Plan list Dr Richard W Haas Chiropractor 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 Dr Richard W Haas Chiropractor PC was last updated on August 23, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.