1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Internal Medicine
  6. NPI Profile

DR. HEUSTEIN SY M.D.
NPI 1326229691
Internal Medicine in New York, NY

Active since November 15, 2007PECOS EnrolledAccepts Medicare Assignment
91.25/100
CMS Quality Rating
100 E 77TH ST, NEW YORK, NY 10075(212) 434-2000 Get Directions Write a Review

NPPES record last updated: January 8, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Heustein Sy M.d. NPPES

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

DR. HEUSTEIN SY M.D. (NPI 1326229691) is an individual internal medicine provider in New York, New York, licensed in New York (276346-1) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1326229691
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. HEUSTEIN SYCredential: M.D.
Location Address100 E 77TH STNew York, NY 10075-1850
Mailing Address417 Abington AveBloomfield, NJ 07003-5818 · (201) 681-4253
Phone(212) 434-2000
Sole ProprietorYes
Medical School CMSOtherGraduated 2001
Enumeration DateNovember 15, 2007
Last NPPES UpdateJanuary 8, 2021
NPPES CertifiedJanuary 8, 2021
✔ NPI 1326229691 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in NY · 276346-1✔ Licensed in NJ · 25MA09276600
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.
Also ListedPsychiatry & Neurology · Neurocritical CareTaxonomy 2084A2900X · License 276346-1 (NY)
100 E 77TH ST, New York, NY 10075
Open in Google Maps ↗

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. Heustein Sy 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 ID4587889548
PECOS Enrollment IDI20161026001852
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 3

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
142 services60 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
58 services30 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
53 services40 patients

Hospital Affiliations CMS Care Compare

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

Lenox Hill Hospital

Acute Care Hospitals · New York, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330119
Location100 East 77th StreetNew York, NY 10021 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10075 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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
Quality74.92
Promoting Interoperability91.67
Improvement Activities40

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. CATHERINE WILLIAMS HALL NURSE PRACTITIONER
Nurse Practitioner (Neonatal, Critical Care)
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-2000
MS. PUNAM SHERPA PA
Physician Assistant
100 E 77TH ST
NEW YORK, NY 10075
New York County (646) 752-1480
MARIA PUTILINA
Student in an Organized Health Care Education/Training Program
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-2150
LINDA MANGERA
Student in an Organized Health Care Education/Training Program
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-2000
JUSTIN WAN
Student in an Organized Health Care Education/Training Program
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-4763
AMANDA JEAN BATTISTA PA
Physician Assistant
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-2000
SAGAR MULAY
Anesthesiology
100 E 77TH ST
NEW YORK, NY 10075
New York County (731) 676-2644
REBECCA SAUNDERS AGACNP
Nurse Practitioner (Acute Care)
100 E 77TH ST
NEW YORK, NY 10075
New York County (212) 434-6500

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 Heustein Sy's NPI number?

The NPI number for Heustein Sy is 1326229691. It was assigned to this individual provider in the NPPES registry on November 15, 2007.

Where is Heustein Sy located?

Heustein Sy practices at 100 E 77th St, New York, NY 10075. The listed phone number is (212) 434-2000.

What is Heustein Sy's specialty?

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

Is Heustein Sy enrolled in Medicare?

Yes. Heustein Sy 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 Heustein Sy affiliated with any hospitals?

According to CMS data, Heustein Sy is affiliated with Lenox Hill Hospital.

When was this NPI record last updated?

The NPPES record for Heustein Sy was last updated on January 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.