1. Home
  2. Directory
  3. Michigan
  4. Chesaning
  5. Optometrist
  6. NPI Profile

DR. WILLIAM B HASS OD
NPI 1972598258
Optometrist in Chesaning, MI

Active since September 13, 2005PECOS EnrolledAccepts Medicare Assignment
1180 W BROAD ST, CHESANING, MI 48616(989) 845-3835(989) 845-3982 Get Directions Write a Review

NPPES record last updated: May 30, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William B Hass Od NPPES

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

DR. WILLIAM B HASS OD (NPI 1972598258) is an individual optometrist in Chesaning, Michigan, licensed in Michigan (4901002552) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (1976).

NPPES Registry Identity

NPI1972598258
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. WILLIAM B HASSCredential: OD
Location Address1180 W BROAD STChesaning, MI 48616-1006
Mailing AddressPo Box 68Chesaning, MI 48616-0068 · (989) 845-3835 · Fax (989) 845-3982
Phone(989) 845-3835
Fax(989) 845-3982
Sole ProprietorNo
Medical School CMSIllinois College Of Optometry At ChicagoGraduated 1976
Enumeration DateSeptember 13, 2005
Last NPPES UpdateMay 30, 2008
✔ NPI 1972598258 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in MI · 4901002552
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1180 W BROAD ST, Chesaning, MI 48616
Open in Google Maps ↗

Other Identifiers 3

Medicare PING3640001MI
Other0G36400Medicare Id
Medicare UPINT33606

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma 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 and accepts Medicare assignment

Dr. William B Hass Od 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 ID8325134794
PECOS Enrollment IDI20071016000295
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.

Areas of Expertise CMS Part B claims 7

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.

Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
96 services96 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
24 services24 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
22 services22 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
19 services18 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
17 services17 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48616 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
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBERT & WILLIAM HASS OPTOMETRISTS PROFESSIONAL CORP
Optometrist
1180 W BROAD ST
CHESANING, MI 48616
Saginaw County (989) 845-3835

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 William Hass's NPI number?

The NPI number for William Hass is 1972598258. It was assigned to this individual provider in the NPPES registry on September 13, 2005.

Where is William Hass located?

William Hass practices at 1180 W Broad St, Chesaning, MI 48616. The listed phone number is (989) 845-3835.

What is William Hass's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is William Hass enrolled in Medicare?

Yes. William Hass 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 William Hass accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 3 other insurers list William Hass 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 William Hass was last updated on May 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.