1. Home
  2. Directory
  3. California
  4. Modesto
  5. Audiologist
  6. NPI Profile

LEIGH TYNER GROSSMANN AU.D.
NPI 1770451569
Audiologist in Modesto, CA

Active since October 24, 2025Accepts Medicare Assignment
600 COFFEE RD, MODESTO, CA 95355(209) 524-1211 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Leigh Tyner Grossmann Au.d. NPPES

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

LEIGH TYNER GROSSMANN AU.D. (NPI 1770451569) is an individual audiologist in Modesto, California, licensed in California (4099) and active in the NPI registry since October 2025. She is a graduate of Other (2025).

NPPES Registry Identity

NPI1770451569
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameLEIGH TYNER GROSSMANNCredential: AU.D.
Location Address600 COFFEE RDModesto, CA 95355-4201
Mailing AddressPo Box 255228Sacramento, CA 95865-5228 · (800) 470-0071 · Fax (916) 854-6769
Phone(209) 524-1211
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateOctober 24, 2025
Last NPPES UpdateFebruary 4, 2026
NPPES CertifiedFebruary 4, 2026
✔ NPI 1770451569 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in CA · 4099
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.
600 COFFEE RD, Modesto, CA 95355
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leigh Tyner Grossmann Au.d. 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 ID4688150436
PECOS Enrollment IDI20260112000736

Medicare Billing Reassignment

Medicare enrollment records show Leigh Grossmann reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Valley Medical Foundation
Same address
Multi-Specialty
600 COFFEE RD
Modesto, CA 95355
  • Reassigned Medicare billing, California enrollment
  • 3,056 clinicians in this Medicare group
NPI 1669846986 (209) 524-1211

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95355 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
$58.87 typical visit price
range $58.87 – $176.60
Typical copayment $14.71 (range $14.71 – $44.15)
Most-billed visit code 99202
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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 20

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

RADHA CHIRUMAMILLA M.D.
Hospitalist
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-1211
CYRUS M RABII MD
Emergency Medicine
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-6097
RONALD D. JENSEN DPM
Podiatrist
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-1211
WALLACE B CARROLL MD
Allergy & Immunology (Allergy)
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-1211
PALLAVI SHARMA MD
Family Medicine
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-6097
SWE THAN M.D.,PH.D
Internal Medicine
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 550-4702
VIVIAN L TAN M.D.
Anesthesiology
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-1211
KENNETH IMANAKA MD
Anesthesiology
600 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-1211

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 Leigh Grossmann's NPI number?

The NPI number for Leigh Grossmann is 1770451569. It was assigned to this individual provider in the NPPES registry on October 24, 2025.

Where is Leigh Grossmann located?

Leigh Grossmann practices at 600 Coffee Rd, Modesto, CA 95355. The listed phone number is (209) 524-1211.

What is Leigh Grossmann's specialty?

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

Is Leigh Grossmann enrolled in Medicare?

Yes. Leigh Grossmann 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.

Which organization bills Medicare for Leigh Grossmann's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leigh Grossmann reassigns Medicare benefits to Sutter Valley Medical Foundation (Modesto, CA). The 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 Leigh Grossmann'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 Leigh Grossmann was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.