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DR. LAUREN RENKEN GRUSENMEYER AU.D.
NPI 1699344192
Audiologist in Orange, CA

Active since June 21, 2021
1301 W PROVIDENCE AVE, ORANGE, CA 92868(714) 639-4990(714) 221-0977 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 6, 2026, Jun 21, 2021 (2 updates tracked since 2021).

About Dr. Lauren Renken Grusenmeyer Au.d. NPPES

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

DR. LAUREN RENKEN GRUSENMEYER AU.D. (NPI 1699344192) is an individual audiologist in Orange, California, licensed in Arizona (DA13124) and active in the NPI registry since June 2021.

NPPES Registry Identity

NPI1699344192
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. LAUREN RENKEN GRUSENMEYERCredential: AU.D.
Location Address1301 W PROVIDENCE AVEOrange, CA 92868-3808
Mailing Address1301 W Providence AveOrange, CA 92868-3808
Phone(714) 639-4990
Fax(714) 221-0977
Sole ProprietorYes
Enumeration DateJune 21, 2021
Last NPPES UpdateJanuary 6, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1699344192 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
Licenses✔ Licensed in AZ · DA13124✔ Licensed in CA · AU4012
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
1301 W PROVIDENCE AVE, Orange, CA 92868
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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 SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Lauren Renken Grusenmeyer Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

2

Medicare enrollment records show Lauren Grusenmeyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tucson E.N.T. Associates, P.C.
411 mi
Otolaryngology
1358 W. ORANGE GROVE
Tucson, AZ 85704
  • Reassigned Medicare billing, Arizona enrollment
  • 18 clinicians in this Medicare group
NPI 1821046525 (520) 575-1272
Children's Clinics For Rehabilitative Services
419 mi
Multi-Specialty
2600 N WYATT DR
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 138 clinicians in this Medicare group
NPI 1063454346 (520) 324-5437

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 2

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.

Comprehensive hearing and speech recognition test 92557
A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.
61 services61 patients
Test to assess middle ear function 92567
A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.
60 services60 patients

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.

MRS. AYREN ELLEN DREYER SLP
Speech-Language Pathologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
JANELLE BRIANA CUBAS B.A.
Speech-Language Pathologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
PATRICIA MARIE ROSSI T-SLP
Speech-Language Pathologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 923-1527
YOMNA ELSIDDIG
Speech-Language Pathologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
TRACY MORILLO CCC-SLP
Speech-Language Pathologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
DARCY HEALEY OT
Occupational Therapist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
NISREEN ALKHAYER
Audiologist
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (714) 639-4990
MCCALL LOPICCOLO SLPA
Specialist/Technologist (Speech-Language Assistant)
1301 W PROVIDENCE AVE
ORANGE, CA 92868
Orange County (855) 901-7742

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 Lauren Grusenmeyer's NPI number?

The NPI number for Lauren Grusenmeyer is 1699344192. It was assigned to this individual provider in the NPPES registry on June 21, 2021.

Where is Lauren Grusenmeyer located?

Lauren Grusenmeyer practices at 1301 W Providence Ave, Orange, CA 92868. The listed phone number is (714) 639-4990.

What is Lauren Grusenmeyer's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Lauren Grusenmeyer enrolled in Medicare?

Yes. Lauren Grusenmeyer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Lauren Grusenmeyer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Grusenmeyer reassigns Medicare benefits to 2 organizations: Tucson E.N.T. Associates, P.C. (Tucson, AZ) and Children's Clinics For Rehabilitative Services (Tucson, AZ). 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 Lauren Grusenmeyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lauren Grusenmeyer was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.