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MSKCC INTEGRATIVE MEDICINE GROUP
NPI 1558332189
Internal Medicine in New York, NY

Active since January 31, 2006
1275 YORK AVE, NEW YORK, NY 10021(646) 227-3813 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mskcc Integrative Medicine Group NPPES

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

MSKCC INTEGRATIVE MEDICINE GROUP (NPI 1558332189) is a healthcare organization registered as an internal medicine in New York, New York and active in the NPI registry since January 2006. The organization lists Charles A Ryke, Manager, as its authorized official.

NPPES Registry Identity

NPI1558332189
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMSKCC INTEGRATIVE MEDICINE GROUP
Location Address1275 YORK AVENew York, NY 10021-6007
Mailing Address633 3rd Ave, Box 3New York, NY 10017-6706
Phone(646) 227-3813
Organization SubpartNo
Authorized OfficialCharles A RykeManager · (646) 227-3650
Enumeration DateJanuary 31, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1558332189 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
1275 YORK AVE, New York, NY 10021
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mskcc Integrative Medicine Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Mskcc Integrative Medicine Group, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Hyowoun Jyung, M. D.
Family Practice
NPI 1225425663
1275 YORK AVE
New York, NY 10065
(212) 639-2000
✔ PECOS✔ Accepts MedicareSame address
Nirupa Raghunathan
Internal Medicine
NPI 1982846564
1275 YORK AVE
New York, NY 10065
(212) 639-2000
✔ PECOS✔ Accepts MedicareSame address
Alyona Weinstein, FNP-BC
Nurse Practitioner
NPI 1366714115
1275 YORK AVE
New York, NY 10065
(201) 368-3384
✔ PECOS✔ Accepts MedicareSame address
Kevin Liou, M.D.
Internal Medicine
NPI 1093102097
505 EAST 70TH STREET WEILL CORNELL INTERNAL MEDICINE ASSOCIATES
New York, NY 10021
(212) 746-2942
✔ PECOS✔ Accepts Medicare0.1 mi
Jun Mao, MD
Family Practice
NPI 1821033580
1429 1ST AVE
New York, NY 10021
(646) 888-0866
✔ PECOS✔ Accepts Medicare0.4 mi
Diane Lee
Nurse Practitioner
NPI 1053964338
221 E 78TH ST APT 1H
New York, NY 10075
(631) 796-0349
✔ PECOS✔ Accepts Medicare0.6 mi
Gary Deng, MD
Internal Medicine
NPI 1780655233
856 HEALTH SCIENCES RD STE 2600
Irvine, CA 92617
(949) 824-7000
✔ PECOS✔ Accepts Medicare2,445 mi

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

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 Mskcc Integrative Medicine Group's NPI number?

The NPI number for Mskcc Integrative Medicine Group is 1558332189. It was assigned to this organization in the NPPES registry on January 31, 2006.

Where is Mskcc Integrative Medicine Group located?

Mskcc Integrative Medicine Group is located at 1275 York Ave, New York, NY 10021. The listed phone number is (646) 227-3813.

What is Mskcc Integrative Medicine Group's specialty?

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

Is Mskcc Integrative Medicine Group enrolled in Medicare?

Yes. Mskcc Integrative Medicine Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mskcc Integrative Medicine Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 3 Medicare specialties reassign their Medicare billing to Mskcc Integrative Medicine Group. A 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 the clinician's services. The largest specialties are Internal Medicine (3), Family Practice (2) and Nurse Practitioner (2). Of these, 3 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mskcc Integrative Medicine Group was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.