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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. GERARD CARL HELLMAN MD
NPI 1700852647
Internal Medicine - Hematology in New York, NY

Active since February 28, 2006Opted out of Medicare · through Apr 1, 2027
184 EAST 70TH ST, NEW YORK, NY 10021(212) 628-9860(212) 585-2880 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Gerard Carl Hellman Md NPPES

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

DR. GERARD CARL HELLMAN MD (NPI 1700852647) is an individual hematology provider in New York, New York, licensed in New York (120354) and active in the NPI registry since February 2006. He has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1700852647
Entity TypeIndividualMale
Primary Taxonomy207RH0000X
Provider Legal NameDR. GERARD CARL HELLMANCredential: MD
Location Address184 EAST 70TH STNew York, NY 10021-5154
Mailing Address184 East 70th StNew York, NY 10021-5154 · (212) 628-9860 · Fax (212) 585-2880
Phone(212) 628-9860
Fax(212) 585-2880
Sole ProprietorNo
Enumeration DateFebruary 28, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1700852647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0000X
License✔ Licensed in NY · 120354
Definition

An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.

Also ListedInternal MedicineTaxonomy 207R00000X · License 120354 (NY)
184 EAST 70TH ST, New York, NY 10021
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Gerard Carl Hellman Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2015 through April 1, 2027.

Opt-Out Effective DateApril 1, 2015
Opt-Out In Effect ThroughApril 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10021 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
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
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.

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 Gerard Hellman's NPI number?

The NPI number for Gerard Hellman is 1700852647. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Gerard Hellman located?

Gerard Hellman practices at 184 East 70th St, New York, NY 10021. The listed phone number is (212) 628-9860.

What is Gerard Hellman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Is Gerard Hellman enrolled in Medicare?

No. Gerard Hellman has opted out of Medicare through April 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Gerard Hellman was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.