DR. WILLIAM STEWART SPEER (AU.D.) – Audiologist, NPI 1164835534

DR. WILLIAM STEWART SPEER (AU.D.) is a healthcare provider. based in Eureka, California. specializing in QUALIFIED AUDIOLOGIST. They hold the professional credentials AU.D.. The NPI Number for DR. WILLIAM STEWART SPEER (AU.D.) is 1164835534

Main info

Male
12 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM STEWART SPEER (AU.D.)
NPI
1164835534
Phone
(707) 443-7111
Address
831 HARRIS ST
Enumeration Date
3 June 2014
Last Update Date
3 June 2014

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2706916161
Graduation Year
2014 (12 years ago)
PAC ID
8224257084
Group Practice PAC ID
3577477264
Professional Enrollment ID
I20210204002146
Address ID
KY423031320OW2841XRDXX400
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience29
Completeness75
Years active:12State licenses:0Digital endpointsOther names

600 QUALIFIED AUDIOLOGIST in CA

Provider Addresses for DR. WILLIAM STEWART SPEER (AU.D.)

  • 831 HARRIS ST

    SUITE D

    EUREKA, CA 955034541

    Phone: (707) 443-7111

    Fax: (707) 443-7117

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2021-02-04

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20210204002146IQualified AudiologistKYTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
92567Test to assess middle ear function317300$0
92557Comprehensive hearing and speech recognition test315299$0
View full utilization report →

Insurance plans in this area (ZIP 95503)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3577477264View full group profile

Reviews

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Frequently asked questions

How do payers reference DR. WILLIAM STEWART SPEER (AU.D.)?
For DR. WILLIAM STEWART SPEER (AU.D.), use NPI 1164835534 as the unique 10-digit identifier.
Active or inactive — what applies to DR. WILLIAM STEWART SPEER (AU.D.)?
You should see DR. WILLIAM STEWART SPEER (AU.D.) as active in CMS-hosted NPPES data.
What kind of doctor is DR. WILLIAM STEWART SPEER (AU.D.)?
DR. WILLIAM STEWART SPEER (AU.D.) is associated with Audiologist in the directory — Clinical services aligned with this taxonomy classification.
Is DR. WILLIAM STEWART SPEER (AU.D.) associated with Eureka?
Public fields place DR. WILLIAM STEWART SPEER (AU.D.) around Eureka, California. Always confirm the exact site before visiting.
When was this NPI issued?
Enumeration for DR. WILLIAM STEWART SPEER (AU.D.) is noted as June 3, 2014 where the registry provides it.

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