Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN FRANCIS GRZEBIENIAK PH.D.
NPI 1437150968
Psychologist - Addiction (Substance Use Disorder) in New Castle, PA

Q: What is John Grzebieniak's NPI number?

The NPI number for John Grzebieniak is 1437150968. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Q: What is John Grzebieniak's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

Q: When was this NPI record last updated?

The NPPES record for John Grzebieniak 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 38 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.

Active since August 09, 2005PECOS EnrolledAccepts Medicare Assignment

128 LEEPER DR, NEW CASTLE, PA 16102(724) 667-9528 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About Dr. John Francis Grzebieniak Ph.d. NPPES

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

DR. JOHN FRANCIS GRZEBIENIAK PH.D. (NPI 1437150968) is an individual addiction (substance use disorder) provider in New Castle, Pennsylvania, licensed in Ohio (84049) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (1982).

NPPES Registry Identity

NPI1437150968

Entity TypeIndividualMale

Primary Taxonomy103TA0400X

Provider Legal NameDR. JOHN FRANCIS GRZEBIENIAKCredential: PH.D.

Location Address128 LEEPER DRNew Castle, PA 16102-2716

Mailing Address128 Leeper DrNew Castle, PA 16102-2716 · (724) 667-9528

Phone(724) 667-9528

Sole ProprietorNo

Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 1982

Enumeration DateAugust 9, 2005

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1437150968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code103TA0400X

License✔ Licensed in OH · 84049

Definition

A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License 3293 (PA), 3448 (OH)

128 LEEPER DR, New Castle, PA 16102

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Other Identifiers 1

Medicaid0570547OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include MedMutual, Molina Healthcare.Insurance ›

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. John Francis Grzebieniak Ph.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 ID1658516497

PECOS Enrollment IDI20130326000467

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.

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 Grzebieniak's NPI number?

The NPI number for John Grzebieniak is 1437150968. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is John Grzebieniak located?

John Grzebieniak practices at 128 Leeper Dr, New Castle, PA 16102. The listed phone number is (724) 667-9528.

What is John Grzebieniak's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

Is John Grzebieniak enrolled in Medicare?

Yes. John Grzebieniak 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.

What insurance does John Grzebieniak accept?

Health plans from MedMutual and Molina Healthcare list John Grzebieniak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Grzebieniak 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 38 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.