DR. DIANE MICHELLE HOROWITZ M.D.
NPI 1275774101
Internal Medicine - Rheumatology in New Hyde Park, NY

Q: What is Diane Horowitz's NPI number?

The NPI number for Diane Horowitz is 1275774101. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Q: What is Diane Horowitz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Diane Horowitz was last updated on January 7, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since March 24, 2009PECOS EnrolledAccepts Medicare Assignment

91.25/100

CMS Quality Rating

2800 MARCUS AVE, NEW HYDE PARK, NY 11042(516) 708-2550 Get Directions Write a Review

NPPES record last updated: January 7, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Diane Michelle Horowitz M.d. NPPES

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

DR. DIANE MICHELLE HOROWITZ M.D. (NPI 1275774101) is an individual rheumatology provider in New Hyde Park, New York, licensed in New York (246416) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2004).

NPPES Registry Identity

NPI1275774101

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameDR. DIANE MICHELLE HOROWITZCredential: M.D.

Location Address2800 MARCUS AVENew Hyde Park, NY 11042-1008

Mailing Address2800 Marcus Ave, Suite 200New Hyde Park, NY 11042-1008 · (516) 446-8692

Phone(516) 708-2550

Sole ProprietorNo

Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 2004

Enumeration DateMarch 24, 2009

Last NPPES UpdateJanuary 7, 2010

✔ NPI 1275774101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in NY · 246416

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

2800 MARCUS AVE, New Hyde Park, NY 11042

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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. Diane Michelle Horowitz M.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 ID547393787

PECOS Enrollment IDI20100809000522

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.

Areas of Expertise CMS Part B claims 13

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.

Injection, rituximab, 10 mg J9312

Rituximab is a medication given via injection. It's used to treat certain types of cancer and autoimmune diseases. The 10 mg dosage refers to the amount of the drug in the injection. It works by targeting and destroying specific cells, helping your body's immune system.

3,400 services15 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,380 services16 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.

332 services157 patients

Injection of drug or substance into vein 96374

This procedure involves introducing a medication or substance directly into your vein using a syringe. It's a quick and efficient way to deliver treatment throughout your body. You might feel a small prick when the needle enters. It's generally safe and effective.

141 services36 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

131 services81 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

130 services29 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

130 services21 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

97 services26 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

88 services28 patients

Injection, hydrocortisone sodium succinate, up to 100 mg J1720

Hydrocortisone sodium succinate injection is a medication given to treat various conditions like allergies, skin conditions, arthritis, or breathing disorders. It works by reducing inflammation and the body's immune response. The dose, up to 100 mg, depends on your condition.

85 services12 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

60 services33 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

22 services17 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

16 services16 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore University Hospital

Acute Care Hospitals · Manhasset, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330106

Location300 Community DriveManhasset, NY 11030 · Nassau County

Emergency services Birthing friendly

Northwell Hospital Glen Cove

Acute Care Hospitals · Glen Cove, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330181

Location101 St Andrews LaneGlen Cove, NY 11542 · Nassau County

Emergency services

Long Island Jewish Medical Center

Acute Care Hospitals · New Hyde Park, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330195

Location270 - 05 76th AvenueNew Hyde Park, NY 11040 · Nassau County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11042 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.25/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

74.92

Promoting Interoperability

91.67

Improvement Activities

Leave this field empty

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.

MRS. LISA VITUCCI LCSW-R

Social Worker (Clinical)

2800 MARCUS AVE, SUITE 205
NEW HYDE PARK, NY 11042

Nassau County (516) 622-6000

DENNIS WILLIAM TREUBIG D.P.T.

Physical Therapist

2800 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 622-6161

GISELE WOLF-KLEIN MD

Internal Medicine (Geriatric Medicine)

2800 MARCUS AVE, SUITE 200
NEW HYDE PARK, NY 11042

Nassau County (516) 708-2522

KENNETH ANTHONY SCIOSCIA MD

Otolaryngology

2800 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 622-3377

ALLEN J WIESENFELD MD

Radiology (Vascular & Interventional Radiology)

2800 MARCUS AVE
LAKE SUCCESS, NY 11042

Nassau County (516) 622-6100

DR. BARRY COHEN M.D.

Anesthesiology

2800 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 622-6000

DR. SHAMALA GANDHI M.D.

Anesthesiology

2800 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 622-6000

HOWARD GUZIK MD

Internal Medicine (Geriatric Medicine)

2800 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 708-2520

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 Diane Horowitz's NPI number?

The NPI number for Diane Horowitz is 1275774101. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Where is Diane Horowitz located?

Diane Horowitz practices at 2800 Marcus Ave, New Hyde Park, NY 11042. The listed phone number is (516) 708-2550.

What is Diane Horowitz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Diane Horowitz enrolled in Medicare?

Yes. Diane Horowitz 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.

Is Diane Horowitz affiliated with any hospitals?

According to CMS data, Diane Horowitz is affiliated with North Shore University Hospital, Northwell Hospital Glen Cove and Long Island Jewish Medical Center.

When was this NPI record last updated?

The NPPES record for Diane Horowitz was last updated on January 7, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.