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DR. KAREN SYLVIA HAMMER DDS
NPI 1952472755
Dentist - General Practice in Massapequa, NY

Active since November 13, 2006PECOS Enrolled
847 N BROADWAY, MASSAPEQUA, NY 11758(516) 798-0850(516) 798-5713 Get Directions Write a Review

NPPES record last updated: October 30, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Karen Sylvia Hammer Dds NPPES

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

DR. KAREN SYLVIA HAMMER DDS (NPI 1952472755) is an individual general practice provider in Massapequa, New York, licensed in New York (32863) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1952472755
Entity TypeIndividualFemale
Primary Taxonomy1223G0001X
Provider Legal NameDR. KAREN SYLVIA HAMMERCredential: DDS
Location Address847 N BROADWAYMassapequa, NY 11758-2373
Mailing Address847 N BroadwayMassapequa, NY 11758-2373 · (516) 798-0850 · Fax (516) 798-5713
Phone(516) 798-0850
Fax(516) 798-5713
Sole ProprietorYes
Enumeration DateNovember 13, 2006
Last NPPES UpdateOctober 30, 2008
✔ NPI 1952472755 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in NY · 32863
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
847 N BROADWAY, Massapequa, NY 11758
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BEST Life, Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Montana and more.Insurance ›

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. Karen Sylvia Hammer Dds 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 11758 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
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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 5

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

VINCENT ANZALONE PHYSICIAN PC
Internal Medicine
847 N BROADWAY, SUITE 103
MASSAPEQUA, NY 11758
Nassau County (516) 798-0441
SHARON SMITH MCEVOY RN, MA, NP-C,
Nurse Practitioner (Adult Health)
847 N BROADWAY, SUITE 103
MASSAPEQUA, NY 11758
Nassau County (516) 798-0441
WINTHROP COMMUNITY MEDICAL AFFILIATES, P.C.
Internal Medicine
847 N BROADWAY, SUITE 103
MASSAPEQUA, NY 11758
Nassau County (516) 798-0441
MS. LAURA M SABATINO-JAN RN
Nurse Practitioner
847 N BROADWAY
MASSAPEQUA, NY 11758
Nassau County (631) 667-0388
DR. VINCENT P ANZALONE MD
Internal Medicine
847 N BROADWAY, SUITE 103
MASSAPEQUA, NY 11758
Nassau County (516) 798-0441

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 Karen Hammer's NPI number?

The NPI number for Karen Hammer is 1952472755. It was assigned to this individual provider in the NPPES registry on November 13, 2006.

Where is Karen Hammer located?

Karen Hammer practices at 847 N Broadway, Massapequa, NY 11758. The listed phone number is (516) 798-0850.

What is Karen Hammer's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Karen Hammer enrolled in Medicare?

Yes. Karen Hammer is registered in the Medicare PECOS enrollment system.

What insurance does Karen Hammer accept?

Health plans from BEST Life, Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 6 other insurers list Karen Hammer 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 Karen Hammer was last updated on October 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.