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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. GARY L MENDELSON AU.D. AND PSY.D.
NPI 1831172428
Audiologist-Hearing Aid Fitter in Potomac, MD

Active since November 28, 2005
11604 BUNNELL CT S, POTOMAC, MD 20854(301) 299-6714(301) 983-9396 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gary L Mendelson Au.d. And Psy.d. NPPES

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

DR. GARY L MENDELSON AU.D. AND PSY.D. (NPI 1831172428) is an individual audiologist-hearing aid fitter provider in Potomac, Maryland, licensed in Maryland (00070) and active in the NPI registry since November 2005. He is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2001).

NPPES Registry Identity

NPI1831172428
Entity TypeIndividualMale
Primary Taxonomy237600000X
Provider Legal NameDR. GARY L MENDELSONCredential: AU.D. AND PSY.D.
Location Address11604 BUNNELL CT SPotomac, MD 20854-3603
Mailing Address11604 Bunnell Ct SPotomac, MD 20854-3603 · (301) 299-6714 · Fax (301) 983-9396
Phone(301) 299-6714
Fax(301) 983-9396
Sole ProprietorNo
Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 2001
Enumeration DateNovember 28, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1831172428 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
Taxonomy Code237600000X
License✔ Licensed in MD · 00070
Definition
An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.
11604 BUNNELL CT S, Potomac, MD 20854
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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. Gary L Mendelson Au.d. And Psy.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 ID9133133739
PECOS Enrollment IDI20060202000964, I20061030000386

Other Providers at the Same Location NPPES 3

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

DR. SANDRA LEONA BLAKE AUD
Audiologist-Hearing Aid Fitter
11604 BUNNELL CT S
POTOMAC, MD 20854
Montgomery County (301) 299-6714
MR. HERBERT CUYA HAD
Hearing Instrument Specialist
11604 BUNNELL CT S
POTOMAC, MD 20854
Montgomery County (301) 299-6714
THE MENDELSON GROUP, LLC
Audiologist
11604 BUNNELL CT S
POTOMAC, MD 20854
Montgomery County (301) 299-6714

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 Gary Mendelson's NPI number?

The NPI number for Gary Mendelson is 1831172428. It was assigned to this individual provider in the NPPES registry on November 28, 2005.

Where is Gary Mendelson located?

Gary Mendelson practices at 11604 Bunnell Ct S, Potomac, MD 20854. The listed phone number is (301) 299-6714.

What is Gary Mendelson's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Is Gary Mendelson enrolled in Medicare?

Yes. Gary Mendelson 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.

When was this NPI record last updated?

The NPPES record for Gary Mendelson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.