DR. RYAN GREGORY HAIAR O.D.
NPI 1689795494
Optometrist in Sioux Falls, SD
About Dr. Ryan Gregory Haiar O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RYAN GREGORY HAIAR O.D. (NPI 1689795494) is an individual optometrist in Sioux Falls, South Dakota, licensed in South Dakota (635) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ryan Gregory Haiar O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Ryan Haiar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sioux Falls, SD 57108
- Reassigned Medicare billing, South Dakota enrollment
- Medicare enrollment name: Howlin Vision Clinic PC
- 7 clinicians in this Medicare group
Sioux Falls, SD 57106
- Reassigned Medicare billing, South Dakota enrollment
- Medicare enrollment name: Eyecare Specialties Of South Dakota PC
- 11 clinicians in this Medicare group
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 9
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ryan Haiar's NPI number?
The NPI number for Ryan Haiar is 1689795494. It was assigned to this individual provider in the NPPES registry on April 2, 2007.
Where is Ryan Haiar located?
Ryan Haiar practices at 5129 S Western Ave, Sioux Falls, SD 57108. The listed phone number is (605) 332-2231.
What is Ryan Haiar's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Ryan Haiar enrolled in Medicare?
Yes. Ryan Haiar is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ryan Haiar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Haiar reassigns Medicare benefits to 2 organizations: Howlin Vision Clinic, P.C. (Sioux Falls, SD) and Eyecare Specialties Of South Dakota, P.C. (Sioux Falls, SD). Each 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 Ryan Haiar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ryan Haiar accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 3 other insurers list Ryan Haiar 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 Ryan Haiar was last updated on August 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Ryan Gregory Haiar, O.D. · NPI 1689795494
Optometrist provider in Sioux Falls, South Dakota. Individual provider, active in the CMS NPPES registry since April 2, 2007.
## Identity
- **NPI:** 1689795494 (Entity type: Individual)
- **Enumerated:** April 2, 2007
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 635 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 5129 S WESTERN AVE, Sioux Falls, SD 57108-2670
- **Phone:** (605) 332-2231 · **Fax:** (605) 330-9519
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Howlin Vision Clinic, P.C. (NPI 1083777676, Sioux Falls, SD); Eyecare Specialties Of South Dakota, P.C. (NPI 1942176680, Sioux Falls, SD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois College Of Optometry At Chicago, class of 2004
## Record status
- **NPPES last updated:** August 29, 2025
- **Other identifiers:** Medicaid 9203730 (SD)
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Source: [NPI Profile](https://npiprofile.com/npi/1689795494) · Data from the CMS NPPES public registry.