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DR. JOHN GERSHEFSKI PH.D.
NPI 1427180405
Psychologist - Clinical in Bethesda, MD

Active since March 12, 2007PECOS Enrolled
6809 WHITTIER BLVD, BETHESDA, MD 20817(301) 263-1115 Get Directions Write a Review

NPPES record last updated: January 14, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John Gershefski Ph.d. NPPES

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

DR. JOHN GERSHEFSKI PH.D. (NPI 1427180405) is an individual clinical provider in Bethesda, Maryland, licensed in Maryland (03398) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427180405
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. JOHN GERSHEFSKICredential: PH.D.
Location Address6809 WHITTIER BLVDBethesda, MD 20817-6066
Mailing Address6809 Whittier BlvdBethesda, MD 20817-6066 · (301) 263-1115
Phone(301) 263-1115
Sole ProprietorYes
Enumeration DateMarch 12, 2007
Last NPPES UpdateJanuary 14, 2014
✔ NPI 1427180405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MD · 03398
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
6809 WHITTIER BLVD, Bethesda, MD 20817
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Other Identifiers 1

Medicare ID-Type Unspecified490845MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Gershefski Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20817 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
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 John Gershefski's NPI number?

The NPI number for John Gershefski is 1427180405. It was assigned to this individual provider in the NPPES registry on March 12, 2007.

Where is John Gershefski located?

John Gershefski practices at 6809 Whittier Blvd, Bethesda, MD 20817. The listed phone number is (301) 263-1115.

What is John Gershefski's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is John Gershefski enrolled in Medicare?

Yes. John Gershefski is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Gershefski was last updated on January 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.