David R. Pfaff, M.D.

Internal Medicine · Staten Island, NY

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At a glance

420 Lyndale Ave, Staten Island, NY 10312-6131

NPPES record updated Dec 10, 2019. Public records can lag behind changes at a practice.

Before you call: a quick checklist
  • Are you accepting new patients?
  • Do you accept my specific insurance plan?
  • Do you provide the service I need at this address?
  • Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

420 Lyndale Ave
Staten Island, NY 10312-6131
REPORTED BACKGROUND

Education & affiliations

Medical / professional school
State University Of New York Downstate Medical Center
Graduation year
1984
CMS specialties
Internal Medicine

CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.

Reported hospital affiliations

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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Reported clinician measures

Measures below describe reported clinician performance in the stated period. They do not form an overall HCPList rating, and reporting differs between clinicians.

Published clinical measures

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
8%2024Published MIPS performance rate. Lower rates indicate better performance for this inverse measure. Measure: MIPS_EC_001_overall. Collection type: EHR. Measure denominator: 53.
Documentation of Current Medications in the Medical Record
100%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_130_overall. Collection type: EHR. Measure denominator: 1193.
Controlling High Blood Pressure
99%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_236_overall. Collection type: REG. Measure denominator: 192.
See all 4 reported measures
Falls: Screening for Future Fall Risk
100%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_318_overall. Collection type: EHR. Measure denominator: 190.

Source: PY 2024 Clinician Public Reporting: MIPS Measures and Attestations · Published Sep 10, 2026.

PAYMENT TRANSPARENCY

Industry-reported general payments

No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record
NPI1639276447
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Registry details

Primary taxonomy
Internal Medicine
Taxonomy code
207R00000X
Enumeration date
Sep 20, 2006
Record updated
Dec 10, 2019
More registry details
Provider type
Individual · Type 1
Reported credentials
M.D.

Reported taxonomies and licenses

Internal Medicine

207R00000X · Primary

License reported: 162899 NY

License numbers and credentials are reported to NPPES; HCPList does not independently verify them.

Practice location

420 Lyndale Ave
Staten Island, NY 10312-6131
Phone
(718) 667-6776
Fax
(718) 667-5461
Mailing address
3311 HYLAN BLVD

STATEN ISLAND, NY 103063688
Source: NPPES Source through Oct 18, 2026An NPI does not verify licensure or credentials.

Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.

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