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DR. WILLIAM C GEHRHARDT M.D.
NPI 1649297797
Pediatrics in Greenlawn, NY

Active since July 16, 2006PECOS Enrolled
284 PULASKI RD, GREENLAWN, NY 11740(631) 425-5250(631) 425-0140 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William C Gehrhardt M.d. NPPES

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

DR. WILLIAM C GEHRHARDT M.D. (NPI 1649297797) is an individual pediatrics provider in Greenlawn, New York, licensed in New York (224722) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649297797
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. WILLIAM C GEHRHARDTCredential: M.D.
Location Address284 PULASKI RDGreenlawn, NY 11740-1602
Mailing Address284 Pulaski RdGreenlawn, NY 11740-1602 · (631) 425-5250 · Fax (631) 425-0140
Phone(631) 425-5250
Fax(631) 425-0140
Sole ProprietorNo
Enumeration DateJuly 16, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1649297797 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 224722
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
284 PULASKI RD, Greenlawn, NY 11740
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Other Identifiers 3

Medicare UPINI04215NY
Medicaid02389628NY
Medicare ID-Type Unspecified527X81NY

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. William C Gehrhardt M.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 11740 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

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.

KATHERINE MURPHY DO
Family Medicine
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-5250
DR. ANNE E. KIERAN D.O.
Family Medicine
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-5250
LISA ROLON MD
Obstetrics & Gynecology
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-5245
CARROL BRANDT NP
Nurse Practitioner (Women's Health)
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-5250
DR. ROGELIO MARTINEZ CO M.D.
Internal Medicine
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-4182
CHRISTOPHER JOHN DIMAIO M.D.
Internal Medicine (Gastroenterology)
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 470-1460
SAMANTHA MARIE BISHOP
Nurse Practitioner (Adult Health)
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 271-1608
YOUNGMEE LEE CNM
Advanced Practice Midwife
284 PULASKI RD
GREENLAWN, NY 11740
Suffolk County (631) 425-4182

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 William Gehrhardt's NPI number?

The NPI number for William Gehrhardt is 1649297797. It was assigned to this individual provider in the NPPES registry on July 16, 2006.

Where is William Gehrhardt located?

William Gehrhardt practices at 284 Pulaski Rd, Greenlawn, NY 11740. The listed phone number is (631) 425-5250.

What is William Gehrhardt's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is William Gehrhardt enrolled in Medicare?

Yes. William Gehrhardt is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Gehrhardt was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.