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DR. GREGORY SHANK DDS
NPI 1659733707
Dentist - Oral and Maxillofacial Surgery in New York, NY

Active since March 27, 2016Opted out of Medicare · through Nov 12, 2027
525 E 68TH ST # 21, NEW YORK, NY 10065(212) 746-5175 Get Directions Write a Review

NPPES record last updated: June 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 17, 2021, Oct 15, 2020, Mar 27, 2016 (3 updates tracked since 2016).

About Dr. Gregory Shank Dds NPPES

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

DR. GREGORY SHANK DDS (NPI 1659733707) is an individual oral and maxillofacial surgery provider in New York, New York, licensed in New York (061065) and active in the NPI registry since March 2016. He has opted out of Medicare through November 12, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1659733707
Entity TypeIndividualMale
Primary Taxonomy1223S0112X
Provider Legal NameDR. GREGORY SHANKCredential: DDS
Location Address525 E 68TH ST # 21New York, NY 10065
Mailing Address525 E 68th St # 21New York, NY 10065-4870 · (212) 746-8400
Phone(212) 746-5175
Sole ProprietorNo
Enumeration DateMarch 27, 2016
Last NPPES UpdateJune 26, 20233 updates tracked since enumeration
NPPES CertifiedJune 26, 2023
✔ NPI 1659733707 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers
Taxonomy Code1223S0112X
License✔ Licensed in NY · 061065
Definition
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
525 E 68TH ST # 21, New York, NY 10065
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Gregory Shank Dds 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 November 12, 2021 through November 12, 2027.

Opt-Out Effective DateNovember 12, 2021
Opt-Out In Effect ThroughNovember 12, 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.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Shank reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Weill Medical College Of Cornell
Same address
Gastroenterology
525 E 68TH ST
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 271 clinicians in this Medicare group
NPI 1932143815 (212) 746-4479

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10065 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
$102.04 typical visit price
range $65.69 – $198.19
Typical copayment $25.51 (range $16.42 – $49.54)
Most-billed visit code 99203
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
Most-billed visit code 99213
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 6

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

DR. ANGAD SINGH DDS
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175
LARA SEIDMAN
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175
MOHAMAD SROUR
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175
SHILEY GRINBAUM DDS
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175
MR. JAMES DOMINIC KLEINFELDER
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175
ARIANA BENEDETTO
Student in an Organized Health Care Education/Training Program
525 E 68TH ST # 21
NEW YORK, NY 10065
New York County (212) 746-5175

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 Gregory Shank's NPI number?

The NPI number for Gregory Shank is 1659733707. It was assigned to this individual provider in the NPPES registry on March 27, 2016.

Where is Gregory Shank located?

Gregory Shank practices at 525 E 68th St # 21, New York, NY 10065. The listed phone number is (212) 746-5175.

What is Gregory Shank's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is Gregory Shank enrolled in Medicare?

No. Gregory Shank has opted out of Medicare through November 12, 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.

Which organization bills Medicare for Gregory Shank's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Shank reassigns Medicare benefits to Weill Medical College Of Cornell (New York, NY). The 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 Gregory Shank's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Shank accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Gregory Shank as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Shank was last updated on June 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.