STEPHEN G ZACHARIAH MD
NPI 1376005231
Internal Medicine - Endocrinology, Diabetes & Metabolism in New York, NY

Active since April 01, 2019PECOS EnrolledAccepts Medicare Assignment
55 E 55TH ST, NEW YORK, NY 10022(646) 754-2000(646) 754-9690 Get Directions Write a Review

NPPES record last updated: April 8, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 8, 2025, Apr 1, 2019 (2 updates tracked since 2019).

About Stephen G Zachariah Md NPPES

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

STEPHEN G ZACHARIAH MD (NPI 1376005231) is an individual endocrinology, diabetes & metabolism provider in New York, New York, licensed in New York (331900) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1376005231
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameSTEPHEN G ZACHARIAHCredential: MD
Location Address55 E 55TH STNew York, NY 10022-3205
Mailing Address55 E 55th StNew York, NY 10022-3205 · (646) 754-2000 · Fax (646) 754-9690
Fax(646) 754-9690
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 1, 2019
Last NPPES UpdateApril 8, 20252 updates tracked since enumeration
NPPES CertifiedApril 8, 2025
NPI 1376005231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in NY · 331900
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
55 E 55TH ST, New York, NY 10022

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

Stephen G Zachariah 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 ID5395285290
PECOS Enrollment IDI20240906000163
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 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.

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.
47 services39 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.
43 services43 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.
34 services30 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10022 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.

Other Providers at the Same Location NPPES 8

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

Internal Medicine (Cardiovascular Disease)
55 E 55TH ST, NYU LANGONE HEALTH - CARDIOLOGY
NEW YORK, NY 10022
Nurse Practitioner (Family)
55 E 55TH ST
NEW YORK, NY 10022
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 E 55TH ST
NEW YORK, NY 10022
Pharmacist
55 E 55TH ST
NEW YORK, NY 10022
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 E 55TH ST
NEW YORK, NY 10022
Physical Therapist
55 E 55TH ST
NEW YORK, NY 10022
Pharmacy
55 E 55TH ST
NEW YORK, NY 10022
Internal Medicine
55 E 55TH ST
NEW YORK, NY 10022

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 Stephen Zachariah's NPI number?

The NPI number for Stephen Zachariah is 1376005231. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is Stephen Zachariah located?

Stephen Zachariah practices at 55 E 55th St, New York, NY 10022. The listed phone number is (646) 754-2000.

What is Stephen Zachariah's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Stephen Zachariah enrolled in Medicare?

Yes. Stephen Zachariah 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 Stephen Zachariah affiliated with any hospitals?

According to CMS data, Stephen Zachariah is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Stephen Zachariah was last updated on April 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.