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KOSHNAF ANTAR MD
NPI 1720194152
Internal Medicine - Rheumatology in Middletown, NY

Active since August 21, 2006PECOS EnrolledAccepts Medicare Assignment
111 MALTESE DR, MIDDLETOWN, NY 10940(845) 342-4774(845) 818-7555 Get Directions Write a Review

NPPES record last updated: August 1, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Koshnaf Antar Md NPPES

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

KOSHNAF ANTAR MD (NPI 1720194152) is an individual rheumatology provider in Middletown, New York, licensed in New York (219104) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Nyack Hospital, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1720194152
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameKOSHNAF ANTARCredential: MD
Location Address111 MALTESE DRMiddletown, NY 10940
Mailing Address111 Maltese DrMiddletown, NY 10940 · (845) 342-4774 · Fax (845) 818-7555
Phone(845) 342-4774
Fax(845) 818-7555
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateAugust 21, 2006
Last NPPES UpdateAugust 1, 2008
✔ NPI 1720194152 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 · 219104
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.
111 MALTESE DR, Middletown, NY 10940
Open in Google Maps ↗

Other Identifiers 4

Medicare UPINH27973
Medicaid02648328NY
Medicare PIN861751NY
Medicare UPINH27973NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Koshnaf Antar Md 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 ID6204730807
PECOS Enrollment IDI20050510000773
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 Reassignments

2

Medicare enrollment records show Koshnaf Antar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Montefiore Nyack Hospital
35 mi
Neurology
160 N MIDLAND AVE
Nyack, NY 10960
  • Reassigned Medicare billing, New York enrollment
  • 119 clinicians in this Medicare group
NPI 1073881835 (845) 348-6607
White Plains Medical Diagnostic Services, PC
35 mi
Internal Medicine
160 N MIDLAND AVE
Nyack, NY 10960
  • Reassigned Medicare billing, New York enrollment
  • 130 clinicians in this Medicare group
NPI 1689955338 (845) 348-2000

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 6

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.

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.
240 services136 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.
165 services81 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.
99 services99 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.
46 services38 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.
15 services14 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.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Nyack Hospital

Acute Care Hospitals · Nyack, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330104
Location160 North Midland AvenueNyack, NY 10960 · Rockland County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10940 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
$141.77 typical visit price
range $61.88 – $187.05
Typical copayment $35.44 (range $15.47 – $46.76)
Most-billed visit code 99204
Established Patient
$108.56 typical visit price
range $19.92 – $151.94
Typical copayment $27.14 (range $4.98 – $37.98)
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.

DR. DAHLIA BANERJI M.D.
Internal Medicine (Cardiovascular Disease)
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
DR. CORINA CRISTESCU M.D.
Internal Medicine
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
DR. SUSHIL KUMAR DHAWAN M.D.,DPM
Orthopaedic Surgery
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 324-4774
MR. CHRISTOPHER M ALLEN M.D.
Obstetrics & Gynecology
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
ERIN TONDINI F-NP
Nurse Practitioner (Family)
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
KANAYO EZE NP
Nurse Practitioner (Family)
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
DR. DAVID D LOWENKRON M.D.,F.A.C.C.
Specialist
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774
ALICIA R NATALIZIO NP
Nurse Practitioner (Family)
111 MALTESE DR
MIDDLETOWN, NY 10940
Orange County (845) 342-4774

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 Koshnaf Antar's NPI number?

The NPI number for Koshnaf Antar is 1720194152. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Koshnaf Antar located?

Koshnaf Antar practices at 111 Maltese Dr, Middletown, NY 10940. The listed phone number is (845) 342-4774.

What is Koshnaf Antar's specialty?

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

Is Koshnaf Antar enrolled in Medicare?

Yes. Koshnaf Antar 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.

Which organizations bill Medicare for Koshnaf Antar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Koshnaf Antar reassigns Medicare benefits to 2 organizations: Montefiore Nyack Hospital (Nyack, NY) and White Plains Medical Diagnostic Services, PC (Nyack, NY). Each 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 Koshnaf Antar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Koshnaf Antar affiliated with any hospitals?

According to CMS data, Koshnaf Antar is affiliated with Nyack Hospital.

When was this NPI record last updated?

The NPPES record for Koshnaf Antar was last updated on August 1, 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.