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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. MARK IRA SIEGEL M.D.
NPI 1013981380
Internal Medicine - Gastroenterology in New York, NY

Active since February 14, 2006PECOS Enrolled
60 GRAMERCY PARK N, GROUND FLOOR, NEW YORK, NY 10010(212) 254-6387(212) 674-1933 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark Ira Siegel M.d. NPPES

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

DR. MARK IRA SIEGEL M.D. (NPI 1013981380) is an individual gastroenterology provider in New York, New York, licensed in New York (131654) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013981380
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MARK IRA SIEGELCredential: M.D.
Location Address60 GRAMERCY PARK N, GROUND FLOORNew York, NY 10010-5423
Mailing Address60 Gramercy Park N, Ground FloorNew York, NY 10010-5423 · (212) 254-6387 · Fax (212) 674-1933
Phone(212) 254-6387
Fax(212) 674-1933
Sole ProprietorNo
Enumeration DateFebruary 14, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1013981380 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 131654
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
60 GRAMERCY PARK N, New York, NY 10010
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Other Identifiers 1

Medicaid00715857NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Ira Siegel M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10010 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 13

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

DR. HERBERT J DYRSZKA M.D.
Internal Medicine (Gastroenterology)
60 GRAMERCY PARK N, SUITE 1B
NEW YORK, NY 10010
New York County (212) 254-1220
ANDREW G. FRANKS, JR. MD, PC
Specialist
60 GRAMERCY PARK N, SUITE 1N
NEW YORK, NY 10010
New York County (212) 475-2312
GRAMERCY PARK MEDICAL ASSOCIATES, PC
Internal Medicine (Gastroenterology)
60 GRAMERCY PARK N, SUITE 1B
NEW YORK, NY 10010
New York County (212) 254-1220
GRAMERCY PARK GASTROENTEROLOGY PC
Specialist
60 GRAMERCY PARK N
NEW YORK, NY 10010
New York County (212) 845-9255
DR. MARIE PULINI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
60 GRAMERCY PARK N, SUITE 1A
NEW YORK, NY 10010
New York County (212) 475-7109
DR. KARIM SAYAD M.D.
Internal Medicine (Gastroenterology)
60 GRAMERCY PARK N, SUITE 1B
NEW YORK, NY 10010
New York County (212) 254-1220
DR. LAWRENCE J OTTAVIANO M.D.
Internal Medicine (Gastroenterology)
60 GRAMERCY PARK N, SUITE 1B
NEW YORK, NY 10010
New York County (212) 254-1220
DR. MIHAELA I. VLADUTIU M.D.
Internal Medicine (Gastroenterology)
60 GRAMERCY PARK N, SUITE 1B
NEW YORK, NY 10010
New York County (212) 254-1220

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 Mark Siegel's NPI number?

The NPI number for Mark Siegel is 1013981380. It was assigned to this individual provider in the NPPES registry on February 14, 2006.

Where is Mark Siegel located?

Mark Siegel practices at 60 Gramercy Park N Ground Floor, New York, NY 10010. The listed phone number is (212) 254-6387.

What is Mark Siegel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mark Siegel enrolled in Medicare?

Yes. Mark Siegel is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Siegel was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.