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DR. DEBRA SHIRA GREENFIELD M.D.
NPI 1558525964
Internal Medicine in West Hempstead, NY

Active since July 15, 2008PECOS Enrolled
324 ELM ST, WEST HEMPSTEAD, NY 11552(516) 481-6911 Get Directions Write a Review

NPPES record last updated: July 15, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Debra Shira Greenfield M.d. NPPES

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

DR. DEBRA SHIRA GREENFIELD M.D. (NPI 1558525964) is an individual internal medicine provider in West Hempstead, New York, licensed in New York (156795) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1982).

NPPES Registry Identity

NPI1558525964
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DEBRA SHIRA GREENFIELDCredential: M.D.
Location Address324 ELM STWest Hempstead, NY 11552-3223
Mailing Address324 Elm StWest Hempstead, NY 11552-3223
Phone(516) 481-6911
Sole ProprietorYes
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1982
Enumeration DateJuly 15, 2008
✔ NPI 1558525964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 156795
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
324 ELM ST, West Hempstead, NY 11552
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Debra Shira Greenfield M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9739331141
PECOS Enrollment IDI20121211000553
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.

Medicare Billing Reassignment

Medicare enrollment records show Debra Greenfield reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dr Michael Kaplan Do PC
28 mi
Internal Medicine
329 E MAIN ST, BOX 9
Smithtown, NY 11787
  • Reassigned Medicare billing, New York enrollment
  • 3 clinicians in this Medicare group
NPI 1912086000 (631) 366-2333

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Face-to-face behavioral counseling for obesity, 15 minutes G0447
This is a 15-minute consultation where a healthcare professional discusses your eating habits, physical activity, and goals to help manage your weight. The aim is to provide personalized strategies to promote a healthier lifestyle and combat obesity.
208 services47 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
142 services35 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
118 services43 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11552 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
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

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

MS. RACHEL GENUTH RPAC
Physician Assistant
324 ELM ST
WEST HEMPSTEAD, NY 11552
Nassau County (516) 457-8341

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 Debra Greenfield's NPI number?

The NPI number for Debra Greenfield is 1558525964. It was assigned to this individual provider in the NPPES registry on July 15, 2008.

Where is Debra Greenfield located?

Debra Greenfield practices at 324 Elm St, West Hempstead, NY 11552. The listed phone number is (516) 481-6911.

What is Debra Greenfield's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Debra Greenfield enrolled in Medicare?

Yes. Debra Greenfield is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Debra Greenfield's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Debra Greenfield reassigns Medicare benefits to Dr Michael Kaplan Do PC (Smithtown, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Debra Greenfield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Debra Greenfield was last updated on July 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.